P1 Treatment Research Articles

PENGARUH EKSTRAK DAUN COCOR BEBEK (BRYOPHYLLUM PINNATUM) TERHADAP MORTALITAS LARVA NYAMUK

The aim of this research was to determine the effect of cocorbek (Bryophyllum pinnatum) leaf extract on mosquito larvae mortality. The research method uses a type of quantitative research with a true experimental approach (pure experiment). It is said to be true experimental because here the researcher intervenes by manipulating the independent variables used as factors, and to see the effects they cause. Researchers will closely observe all other factors that may be considered to influence, suppress and interfere with the results of the experiment. The research results were based on hypothesis testing using one way ANOVA analysis and the results obtained were an Fcount value of 34.536 and a sig value of 0.000. With the hypothesis that Fcount > Ftable and it is said to be significant if the sig value < 0.05. So if compared with Ftable in this study which is 2.77, then Fcount is 34.536 > Ftable 2.77. So Ha is accepted (there is an effect of cocorbek leaf extract on mosquito larvae mortality) and Ho is rejected (there is no effect of cocorbek leaf extract on mosquito larvae mortality). The conclusion of the research is that cocorbek leaf extract has an effect on the mortality of mosquito larvae. In treatment P0, it showed that no mortality occurred because cocorbek leaf extract was not given. Treatment P1 given cocorbek leaf extract had the lowest average mortality value. Meanwhile, P5 treatment had the highest average mortality value. This shows that the higher the concentration of Cocor Bebek leaf extract given, the more mosquito larvae will die. Cocorbek leaf extract can affect the mortality of mosquito larvae because it contains active chemicals that can inhibit larval growth, such as alkoloids, flavonoids, saponins and tannins which are toxic to mosquito larvae.

Effect of Different Planting Dates and Spacing on Growth Parameters of Cabbage (Brassica oleracea var. capitata L.)

Aim: To investigate the effect of various planting dates and spacing on cabbage growth. Study Design: The experimental design Factorial Randomized Block Design (FRBD) was used. Place and Duration of Study: An experiment was conducted in the rabi seasons of 2021–22 and 2022–23 at the Horticulture Research Farm, Babasaheb Bhimrao Ambedkar University, Lucknow (U.P.) Methodology: There were twelve treatments with three replications. The variety selected for experiment was Pusa Mukta. Results: The combined data of two years showed that treatment P1 (30 November) had significantly higher plant survivability (95.28%), plant height (14.67 cm, 21.31 cm and 28.39 cm) at 30, 45 and 60 DAT, respectively, stem diameter (2.11 cm), no. of non-wrapper leaves (16.28), no. of wrapper leaves (27.19), plant spread E-W (49.40 cm) and plant spread N-S (52.63 cm). Among spacings. The findings showed that the S4 (60 cm x 60 cm) plant spacing achieved maximum plant survivability at 91.59%. It also led to the greatest plant height at 30, 45 and 60 days after transplanting (DAT) with measurements of 15.73 cm, 22.45 cm and 31.12 cm, respectively. Additionally, this spacing resulted in the largest stem diameter (2.31 cm), the highest no. of non-wrapper leaves (17.40), no. of wrapper leaves (28.30), greatest plant spread in both East-West (52.79 cm) and North-South (56.08 cm) directions. Conclusion: The results obtained from pooled data of two years showed that treatment P1 (30 November) and Spacing 60 cm x 60 cm had significantly higher growth parameters.

Phosphorus Supply Under Micro-Nano Bubble Water Drip Irrigation Enhances Maize Yield and Phosphorus Use Efficiency.

This study aimed to explore the combined effects of micro-nano bubble water drip irrigation and different phosphorus (P) application rates (P0: 0 kg·hm-2; P1: 86 kg·hm-2; P2: 172 kg·hm-2; P3: 258 kg·hm-2) on maize growth, soil phosphorus dynamics, and phosphorus use efficiency to optimize irrigation and P fertilizer use efficiency. Through a field column experiment, the impact of micro-nano bubble water drip irrigation on maize plant height, stem diameter, leaf SPAD values, biomass, and yield was evaluated. The results showed that (1) irrigation methods significantly affected maize growth indicators such as plant height, stem diameter, and root dry weight. Micro-nano bubble water drip irrigation consistently promoted growth during all growth stages, especially under higher P application. (2) P application significantly increased the dry weight and P concentration in maize roots, stems, leaves, ears, and grains. Under micro-nano bubble water drip irrigation, the P concentrations in roots and grains increased by 59.28% to 92.59%. (3) Micro-nano bubble water drip irrigation significantly enhanced P uptake efficiency, partial factor productivity of P, and agronomic P use efficiency. Particularly under P1 and P2 treatments, the increases were 134.91% and 45.42%, respectively. Although the effect on apparent P recovery efficiency was relatively small, micro-nano bubble water drip irrigation still improved P utilization under moderate P levels. (4) Structural equation modeling indicated that P supply under micro-nano bubble water drip irrigation primarily regulated alkaline protease and alkaline phosphatase, enhancing soil P availability, which in turn promoted maize P accumulation and increased yield. In conclusion, this study demonstrated that the combination of micro-nano bubble water drip irrigation and appropriate P application can effectively promote maize growth and nutrient utilization, providing a theoretical basis for optimizing irrigation and fertilization strategies in maize production.

Effects of curing method on quality of vanilla pod using a greenhouse effect dryer

The problem faced in Indonesian vanilla production and export is the high variation of vanilla quality. This is caused by some factors, including variations in the age of harvest, curing process and drying method. This study aimed to determine the effects of curing using a greenhouse effect (GHE) dryer on the quality of vanilla pods. The vanilla pod was harvested and subjected to the withering process by soaking in water at a temperature of 60-65°C for 2 mins. After that, the sweating process was carried out for 2 days at room temperature. Then, the samples were subjected to four curing treatments [drying with GHE dryer with no sweating process (P1), drying with GHE dryer combined with sweating in the first two days (P2), drying with GHE dryer combined with sweating in the first four days (P3) and drying with sun drying combined with sweating in the first two days (P4)]. Drying was continued for all treatments until the water content of the vanilla pod reached 34-35%. The changes in color, shape, weight loss, water and vanilla content of vanilla pod before and after the curing process were observed. The results showed that drying with a GHE dryer combined with sweating in the first four days (P3) significantly affects the vanillin content and aroma of cured vanilla pod. There was no effect of curing on the color of cured vanilla pods. The P3 treatment was the best curing method since the vanillin content was highest with acceptable color and aroma.

Respon Pertumbuhan Tanaman Pakcoy (Brassica rapa L.) Varietas Nauli F1 Melalui Pemberian Pupuk Kandang Sapi dan NPK 16-16-16

Pakcoy (Brassica rapa L.) is a type of vegetable plant that belongs to the Brassicaceae family. Pakcoy plants originate from China and have been cultivated since the 5th century widely in southern China and central China and Taiwan. The purpose of this study was to determine the response of growth and yield of pakcoy mustard plants (Brassica rapa L.) through the provision of organic fertilizer Cow Manure and Inorganic fertilizer NPK 16-16-16. This study used a Randomized Block Design (RAK), consisting of 2 factors and 4 levels with 3 Replications. Where the first factor is Cow Manure (P) with 4 levels, namely = P0 Control P1: (1 kg/plot), P2: (2 kg/plot), P3: (3 kg/plot). And the second factor is NPK 16-16-16 fertilizer with 4 levels, namely: N0: control, N1: (25 grams/plot), N2: (50 grams/plot), N3: (75 grams/plot). The parameters observed are: plant height (cm), number of leaves (strands). Analysis of variance with Analysis of variance (Anova), continued with DMRT test at 0.05% level if there is a real treatment. The average height of pak choy plants that gave the highest value was in treatment P2 = 19.15, N0 = 17.72 In the 28th observation hst, the number of leaves in treatment P1 = 114.21, N2 = 12.49. Keywords: pakcoy, cow manure, NPK 16-16-16.

Study on the Mechanism of Nd:YAG Laser-Assisted Therapy on the Changes of Subgingival Flora in Periodontitis.

This study evaluated the therapeutic efficacy of combining Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser with subgingival curettage and root planing (SRP) in generalised stage III/grade C periodontitis patients and its effects on cytokine dynamics and microbial community. Fifteen patients diagnosed with stage III/grade C periodontitis were included in the cohort. The right and left sides of the mouth were randomly assigned either the conventional SRP (control) group or the SRP supplemented with Nd:YAG laser group (experimental group, 160 mJ, 4 W) in a split-mouth design. Clinical periodontal indices were recorded at baseline and at the 6-week follow-up post-treatment. ELISA was utilised to measure IL-1β and TNF-α levels in gingival crevicular fluid. The subgingival microbiota's composition and variations were characterised using 16S rDNA amplicon sequencing, while quantitative real-time polymerase chain reaction (qRT-PCR) was employed to analyse the changes in the red-complex bacteria in subgingival plaque. The SRP+Nd group exhibited a statistically significant reduction in record probing depth (PD) and bleeding on probing (BOP) compared to the SRP group after treatment (p0.05). The SRP+Nd group showed a markedly lower IL-1β level than the SRP group (p0.05). Furthermore, there was no statistically significant difference in the dominant subgingival microbiota composition and level of the red-complex bacteria between the two groups (p>0.05). The adjunctive use of Nd:YAG laser with SRP demonstrates promising short-term therapeutic benefits for patients with extensive stage III/grade C periodontitis. Both SRP as a standalone treatment and its combination with Nd:YAG laser effectively facilitate a transition in the dominant bacterial community from periodontitis-associated to periodontal health-associated microbiota.

Kualitas Fisik Silase Jerami Jagung (Zea mays) dengan Campuran Indigofera zollingeriana

Corn straw has the potential as a ruminant feed, but is constrained by low crude protein so it must be combined with Indigofera zollingeriana legumes which have high crude protein. The addition of Indigofera zollingeriana at different levels is expected to increase the crude protein of corn straw silage (Zea mays) and is expected to produce good silage quality. This study aims to determine the physical quality of corn straw silage (Zea mays) and Indigofera zollingeriana in different proportions. The variables observed in this study were the percentage of shrinkage, pH value, percentage of moldy silage, fleigh value, and physical quality (color, aroma, and texture). This experiment was arranged in a Completely Randomized Design (CRD) with 3 treatments and each treatment was repeated 6 times, so there were 18 experimental units, namely P1 = 80% Corn straw + 15% Indigofera zollingeriana + 4% bran + 1% mineral mixture; P2 = 70% Corn straw + 25% Indigofera zollingeriana + 4% bran + 1% mineral mixture; P3 = 60% Corn straw + 35% Indigofera zollingeriana + 4% bran + 1% mineral mixture. The results of the analysis of variance test showed that corn straw silage (Zea mays) with a mixture of Indigofera zollingeriana had no significant effect (P>0.05) on the percentage of moldy silage, fleigh value, and physical quality (color, aroma, texture) but had a significant effect (P<0.05) on the percentage of shrinkage and pH of silage. Based on this study, it can be concluded that the best silage proportion was obtained in the P2 treatment with 70% corn straw + 25% Indigofera zollingeriana + 4% fine bran + 1% mineral mixture, resulting in good quality silage.

Pengaruh Pemberian Pupuk NPK dan Media Arang Sekam Terhadap Pertumbuhan dan Produksi Bawang Merah (Allium cepa L.)

Shallots are known as a type of spice for food flavoring and also as a traditional medicine whose benefits have been felt by the wider community. The production of shallots in Sijunjung Regency has not shown optimal results even though NPK fertilizers have been used. To overcome this, it is necessary to add organic fertilizers such as husk charcoal. This study aims to determine the effect of the growth and production of Allium cepa (L.) shallots on the combination of applying npk fertilizer and husk charcoal.The research was in the form of an experiment using a complete randomized design (RAL) with five treatments and four replicates. P0 treatment (NPK 0g/polybag + husk charcoal 0g/polybag), P1 treatment (NPK 1.25g/polybag x 8 + husk charcoal 80g/polybag), P2 treatment (NPK 1.30g/polybag x 8 + husk charcoal 90g/polybag), P3 treatment (NPK 1.35g/polybag x 8 + husk charcoal 100g/polybag), P4 treatment (NPK 1.40g/polybag x 8 + husk charcoal 110g/polybag). The variables observed were plant height, number of leaves per clump, number of tubers per clump, wet weight and dry weight. Furthermore, the data was analyzed using a variety of fingerprint analysis followed by a DMRT test with a level of 5% on data that had a real effect. The results showed that the combination of NPK fertilizer and husk charcoal had a real effect on the number of leaves per clump (P <0.05) and had no real effect on plant height, number of tubers per clump, wet weight and dry weight. The P4 treatment produced the highest number of leaves (34.50 leaves), while the highest number of bulbs was also achieved by the same treatment with an average of 8.75 bulbs per clump. The conclusion of the study results is Overall, the application of NPK and husk charcoal shows the potential for an increase in the number of leaves, but it is not significant in other aspects. Keyword: shallots, husk charcoal, NPK, growth, production

Sweet corn (Zea mays L.) seed performance enhanced under drought stress by chitosan and minerals coating.

Sweet corn (Zea mays L.) var. Saccharata is a tropical and semitropical annual cereal with low germination, poor vigor, and weak seedling establishment in the soil. In order to enhance the physical properties of sweet corn and examine the effects of seed coating on the morphological, biochemical, and physiological characteristics of sweet corn seedlings under drought stress conditions, we conducted a factorial experiment in greenhouse conditions. Seed coating was carried out using a mixture of vermiculite (V), kaolin (K), and perlite (P) in a ratio of 3:1.5:2. The main factors of the greenhouse experiment comprised three levels of coating treatment (chitosan 0.5% + V10K2.5P5 (gr), NaAlg 1% + V10K2.5P5 (gr), and non-coated seeds as a control) along with drought stress at four levels (0, -0.3, -0.6, and -0.9bar). In greenhouse conditions, the growth indexes of sweet corn seedlings were studied under increasing levels of drought stress. The results showed that as drought stress levels increased, certain growth indicators such as seedling emergence and seedling emergence rate, soluble protein, chlorophyll total content, nitrogen, and phosphorus content decreased. On the other hand, mean emergence, proline, potassium, soluble sugars, malondialdehyde, and hydrogen peroxide were increased. The study found that the highest seedling emergence percentage occurred in the coating treatment of chitosan 0.5% + V10K2.5P5 (gr) at all levels of drought stress. Overall, seed coating with the Chitosan 0.5% + V10K2.5P5 (gr) treatment improved the performance of sweet corn seeds and reduced the negative effects of drought stress by increasing seedling emergence and establishment.

Feed palatability and consumption of Eclectus Roratus Biaki in The Captivity of Bird and Ochid Park in Biak Numfor

This study aimed to assess the palatability and feed consumption of bayan parrots (Eclectus roratus biaki) in the captivity at the Bird and Orchid Park in Biak, using a variety of local feed combinations. The feeds consisted of fruits (papaya and bananas) and seeds (mung beans and sweet corn). A total of 8 parrots (4 males and four females) were used, housed in pairs within individual cages. Four treatments were tested: P0 (papaya and banana), P1 (papaya, banana, and mung beans), P2 (papaya, banana, and sweet corn), and P3 (papaya, banana, mung beans, and sweet corn). Feed and water were provided ad libitum and feed consumption was measured by weighing the remaining feed daily. The results indicated that bananas had the highest palatability and consumption across all treatments, with the highest feed consumption occurring in the P3 treatment, which included a combination of fruits and seeds. Palatability index, dry matter intake, and organic matter intake were higher when parrots were offered a varied diet. No significant differences were found between treatments in daily consumption, but the variety in feed combinations led to improved consumption patterns. The findings suggest that providing a balanced and varied diet consisting of fruits and seeds is crucial for optimizing bayan parrots' nutritional intake and health in captivity. This study contributes to improved feeding strategies for captive management and conservation efforts, ensuring the well-being of this endemic species.

Polypropylene Packaged Ten Days Cold Stored Rose Cut Flowers cv. Bordeaux Influenced by Different Pulsing Solution

The study included different pulsing solution viz., water, HQC 200mg/l, sucrose 50g/l + HQC 200 mg/l, citric acid 200mg/l, α-lipoic acid 200mg/l, GA3 100 mg/l and BA 100mg/l to study the effect on flower quality and vase life of PP (polypropylene) packaged cold storage (at 2°C) rose cv. Bordeaux, for the period of 10 days. Pre-storage pulsing of GA3 100mg/l solution treatment showed highly promising results in extending flowers vase life along with maintained flower quality just after storage and at 4th DAS in vase life. Further, GA3 100mg/l solution treatment recorded significantly higher water up take (175.65 ml), change in fresh weight (10.50%) at 4th DAS, total dissolve solids (8.85 °brix, 8.05 °brix and 6.75 °brix) and membrane stability index (81.97 %, 65.97 % and 37.88 %) at 2nd, 4th and 6th DAS. Moreover, it was evident from the results that same treatment recoded significantly higher total soluble sugar (59.65 mg/g fresh weight), Estimated protein (18.79 mg/g fresh weight), catalase activity (20.42 µ mol H2O2 min-1 g-1 protein), peroxidation activity (40.30 µ mol H2O2 min-1 g-1 protein), pigment content (15.82 mg/g fresh weight) anthocyanin content in the petals at 4th DAS. Whereas, GA3 100 mg/l pulsing solution treated PP packaged cold stored rose cut flowers cv. Bordeaux recorded significantly higher vase life (6.88 days) which was at par with treatment P2 (Sucrose 50 g/l + HQC 200 mg/l).

PENGARUH EKSTRAK BUAH BELIMBING WULUH (AVERRHOA BILIMBI L.) TERHADAP DAYA TETAS TELUR IKAN GURAMI

Carp is one of commodities freshwater many developed by the cultivator of the fish, as the demand for a high market, maintenance easy and princes relatively stable, think nice and nutrition content high. One alternative to address the problem is the use of extract fruit carambola wuluh. Of which it has infected a fungus saprolegnia sp. Marinated to extrac the fruit of the leatherback wuluh. The concentration of an extract to the leatherback wuluh that is used is identification ppm 4.000 to the density of the 50 egg. The research uses the experimental methods random design it is the complete (RAL) with 4 treatment and 3 preparation of test questions so that apol corporate secretary ronald naggol there were a total of 12 of the experiment. Treatment P1 (time of soaking 10 minutes), treatment P2 (time of soaking 15 minutes), treatment P3 (time of soaking 20 minutes), treatment P4 (in the absence of soaking / control). The research results show that the addition of an extract the fruit of the leatherback wuluh to exert an influence real (P<0,05) against hatch power has risen and other eggs and concern only the survival of roasted gouramy fish with a long time of soaking an extract the fruit of the leatherback wuluh as longaudience with the value of hatch power has risen and other eggs as much as (96.67%). and the level of concern only the survival of (97.93%)

Assessing the Influence of Long-Term Gender-Affirming Hormone Therapy on Cardiovascular Risk in Transgender Men through Carotid Intima-Media Thickness.

Background: Transgender men use exogenous androgen for male pattern virilization. Hysterectomy and bilateral salpingo-oophorectomy (HBSO) is performed to stop the endogenous estrogen secretion. Cardiovascular disease (CVD) risk has been shown to increase with long-term use of androgens and the removal of estrogen. We aimed to investigate the CVD risk in these individuals by measuring internal and common carotid artery intima-media thicknesses (CIMT). Methods: In this cohort study, data were collected from transgender men who had undergone HBSO and used androgens for at least two years (median treatment duration was 5 years in our research). Cisgender women in the same age range were selected as the control group. Demographics, vital signs, and hematological values of transgender patients and cisgender women subjects in the control group were noted. CVD markers were compared with sonographically measured CIMT values. Results: The mean age and body mass index (BMI) of the study group were 32.6 and 25.3, respectively. Weight, systolic-diastolic blood pressure, hemoglobin, hematocrit, low-density lipoprotein (LDL), serum triglyceride (TG), HbA1c levels, internal CIMT, and common CIMT values of the study group were higher, while the high-density lipoprotein (HDL) level was significantly lower compared the control group (p1 = 0.025, p2 = 0.010, p3 = 0.002, p4 = 0.001, p5 = 0.001, p6 = 0.012, p7 = 0.008, p8 = 0.007, p9 = 0.013, and p10 = 0.001). There was also an increase in the body weight, BMI, LDL, and TG levels of the study group after the testosterone treatment (p1 = 0.025, p2 = 0.019, p3 = 0.001, p4 = 0.001, and p5 = 0.001). Conclusions: We demonstrated that the use of testosterone therapy in transgender men is associated with higher CIMT values. While further investigation is needed to assess morbidity and mortality rates, we recommend that regular clinical and radiological examinations be performed in these individuals to accurately evaluate the risk of CVD.

PENGARUH FREKUENSI PEMBERIAN VITAMIN E TERHADAP POST PARTUS ESTRUS DAN POST PARTUS MATING SAPI PERANAKAN FRIESIEN HOLSTEIN

This study aimed to determine the effect of the frequency of vitamin E application on the reproductive performance of postpartum FH crossbreed cows, which Include Post Partus Estrous (first estrus after calving) and Post Partus Mating (first mating after calving). The study used treatment giving vitamin E to cows after calving with treatment 0 (P0)/control, treatment 1 (P1) was injected on the 7th and 14th days after calving and treatment 2 (P2) was injected on the 7th day, the 14th day after calving and 17th day after calving. Post Partus Estrous (PPE) and Post Partus Mating (PPM) were the treatment variables observed. Giving vitamin E on the 7th, 14th, and 17th days after calving (P2) showed a very significant effect (P<0.01) on Post Partum Estrous (PPE). The results of ANOVA analysis of treatment 2 (P2) days 7, 14, and 17 after calving showed a very significant effect (P<0.01) on Post Partus Mating (PPM). This study shows that the P2 treatment with vitamin E injection on days 7, 14, and 17 after calving obtained the best reproductive performance by producing the shortest Post-Partus Estrus (PPE) of 51 days and the shortest Post-Partus Mating (PPM) of 71.83 days.

Management of soft rot in pakchoi (Brassica chinensis L.) using polyphenols from pineapple peel waste

Soft rot is one of the most susceptible soil-borne diseases of pakchoi (Brassica chinensis L.), severely hindering its industrial development. The research aimed to evaluate the application effect of polyphenols extracted from pineapple peel waste in improving the rhizosphere soil environment of pakchoi infected by soft rot and promoting plant health and growth. We found that using pineapple peel polyphenols (PPPs) at 4 mg/mL concentration (P1 treatment) significantly improved soil quality, reduced pakchoi disease incidence, and effectively promoted pakchoi growth. Compared with the control group (CK), the P1 treatment led to a marked 79.97 % reduction in diseased pakchoi leaves. Meanwhile, the rhizosphere soil structure showed reduced diseased genera and increased beneficial bacterial phyla, along with boosted soil enzyme activities. Furthermore, P1 treatment improved key growth parameters of pakchoi, including neck thickness (62.07 %), plant height (57.43 %), fresh weight (154.52 %), dry weight (121.88 %), maximum leaf length (47.28 %), width (30.98 %), and total chlorophyll content (50.11 %). The application of PPPs has shown significant effects in enhancing the ecological environment of the diseased soil and reducing the incidence of soft rot disease of pakchoi and has great potential in increasing the yield of pakchoi. This study offers an eco-friendly and sustainable approach for the valorization of PPPs and the management of soil-borne diseases, which holds profound implications for enhancing crop quality, soil health, and human well-being.

Effect of Pinching on Growth, Yield, and Quality of African Marigold (Tagetes erecta L.) cv. Pusa Narangi Gainda

Marigold is a very common and a hardy flower crop cultivated throughout the world. Pinching is an important intercultural practice commonly followed in cultivation of marigold however, this needs to be standardized for getting higher yields in commercial cultivation. Hence, the present investigation was conducted at Rajasthan Agricultural Research Institute, Durgapura, Jaipur, Division of Horticulture, during 2020-21 and 2021-22 to standardize the commercial pinching practice for getting higher productivity. Three levels of pinching (no pinching, single at 20 days and double at 20 and 40 days after transplanting) were used in the course of the research arranged using a factorial randomized block layout with three replications applied to African marigold variety Pusa Narangi Gainda. The results revealed that treatment P0 (No pinching) was discovered to be the finest in increment in height of plant, early flower bud initiation flower opening and treatment P2 (Double pinching) in boosting spread of plant, primary branches, length of leaf, leaf width, leaf area, plant fresh weight, plant dry weight, total biomass, root- shoot ratio, 50% flowering, flower diameter, stalk and ray floret length, fresh and dry flower weight, mass and number of flower per plant, flower yield additionally improved quality characteristics like chlorophyll and xanthophyll content in marigold. Hence, it might be concluded that application of double pinching can be helpful and recommended in improving yield as well as quality characteristics in commercial cultivation of marigold.

Plant Growth-promoting Potential of Oil Palm Boiler Ash-based Organomineral Fertilizer for Green Mustard Cultivation Under Reduced Urea Dose in Ultisols

This study aims to demonstrate the capability of Oil Palm Boiler Ash (OPBA)-based organomineral fertilizer (OMF) to maintain the growth, green biomass yield, and N uptake of green mustard under a reduced N application rate. This research was carried out from March to May 2021 in a research area in Bengkulu City with a Randomly Complete Block Design scheme and three replications. The treatment consisted of P0 = control (without OMF or urea), P1 = 200 kg urea ha−1, P2 = 325 kg OMF ha−−1 + 50 kg urea ha−−1, P3 = 650 kg OMF ha−−1 + 50 kg urea ha−−1, P4 = 975 kg OMF ha−−1 + 50 kg urea ha−−1, and P5 = 1300 kg OMF ha−−1 + 50 kg urea ha−−1. The results showed that the growth and green biomass yield increased as the application rate of OMF increased. Treatment of P5 produced the highest growth, green biomass yield, and N uptake, equivalent to P2 treatment. The green biomass yield at P5 was 161% higher than that at P0. Therefore, OMF has the potential to promote the agronomic performances of green mustard under 50% reduced N dose in Ultisols. Keywords: slow release fertilizer, nutrient management, oil palm waste, organic pellet fertilizer, green mustard

An operational discontinuous Galerkin shallow water model for coastal flood assessment

Hydrodynamic modeling for coastal flooding risk assessment is a highly relevant topic. Many operational tools available for this purpose use numerical techniques and implementation paradigms that reach their limits when confronted with modern requirements in terms of resolution and performances. In this work, we present a novel operational tool for coastal hazards predictions, currently employed by the BRGM agency (the French Geological Survey) to carry out its flooding hazard exposure studies and coastal risk prevention plans on International and French territories. The model, called UHAINA (wave in the Basque language), is based on an arbitrary high-order discontinuous Galerkin discretization of the nonlinear shallow water equations with SSP Runge–Kutta time stepping on unstructured triangular grids. It is built upon the finite element library AeroSol, which provides a modern C++ software architecture and high scalability, making it suitable for HPC applications. The paper provides a detailed development of the mathematical and numerical framework of the model, focusing on two key-ingredients : (i) a pragmatic P0 treatment of the solution in partially dry cells which garantees efficiently well-balancedness, positivity and mass conservation at any polynomial order; (ii) an artificial viscosity method based on the physical dissipation of the system of equations providing nonlinear stability for non-smooth solutions. A set of numerical validations on accademic benchmarks is performed to highlight the efficiency of these approaches. Finally, UHAINA is applied on a real operational case of study, demonstrating very satisfactory results.

Effect of Rabbit Urine Bio Fertilizer and NPK on Vegetative Variables of Sorghum (Sorghum bicolor L.)

Sorghum (Sorghum bicolor L.) is a plant that requires more N nutrients than other nutrients. The abundance and affordability of rabbit urine bio fertilizer can reduce the cost of cultivation production inputs due to the high price of inorganic fertilizers. Rabbit urine contains higher N nutrients compared to other livestock urine. This study aims to obtain a combination of Rabbit Bio Urine (BUK) fertilizer concentration and NPK fertilizer dosage that can give the best results on the growth of sorghum plants (Sorghum bicolor L.). The research method used is a non-factorial Randomized Group Design (RAK) consisting of 6 levels, namely: P1 (BUK 0 ml/L + 100% NPK), P2 (BUK 41 ml/L + 80% NPK), P3 (BUK 27 ml/L + 80% NPK), P4 (BUK 18 ml/L + 80% NPK), P5 (BUK 9 ml/L + 80% NPK), and P6 (BUK 5 ml/L + 80% NPK). The application of rabbit bio urine fertilizer gives a real effect on the parameters of plant height and stem diameter at the age of 36 HST and 42 HST. In the parameter of the number of leaves, rabbit bio urine fertilizer and NPK gave no significant effect at all observation times. The P2 treatment (BUK 41 ml/L + NPK 80%) gave the highest results in the parameters of plant height at the age of 36 HST and 42 HST which amounted to 98,1 cm and 123,7 cm. In the parameter of stem diameter, the highest result was obtained by P1 (BUK 0 ml/L + NPK 100%) which amounted to 14,8 mm. Keywords : N Nutrient, Rabbit Urine Bio Fertilizer, Sorghum

The Effect of Mocaf Flour and Yellow Pumpkin Flour (Cucurbita Moschata) Proportion on the Acceptability and Physicochemical Quality of Wet MI

Overcoming dependence on wheat flour as raw material, researchers want to develop a wet noodle product by using mocaf flour to substitute wheat flour and adding pumpkin flour to increase the nutritional value of wet noodles, namely potassium minerals as an alternative main food that can help lower blood pressure in hypertension sufferers.To determine the effect of the proportion of mocaf flour and pumpkin flour on the physicochemical quality of wet noodles. This type of research uses an experimental study design with a Completely Randomized Design (CRD). The comparison of the proportions of mocaf flour and pumpkin flour is P0 (100g : 0g), P1 (95g : 5g), P2 (90g :10g), P3 (85 g :15g), P4 (80g :20g). Physical quality and chemical quality test data were analyzed using the Independent T-test. The research results show that the percent water absorption capacity; percent elongation; potassium levels; and sodium levels, namely P0 (58.5% ; 19.8% ; 16.5mg/100 g; 5.64 mg/100g), P2 (70.3% ; 8.8% ; 55.95 mg/100g ; 5.55 mg/100g). The best treatment P2 does not meet the adult RDA percentage and cannot be classified as high in potassium. Wet noodle products cannot yet be used as an alternative to foods high in potassium for preventing hypertension.