Cob Weight Research Articles

The influence of foliar macronutrient on growth and yield of sweet corn grown in Rengam and Rasau soil series under greenhouse conditions

The purpose of this study was to determine the effects of different rates of macronutrients as a foliar applications on growth and yield performance of sweet corn cultivated in Rengam and Rasau soil series of Malaysia under greenhouse condition. The study comprised five treatments of macronutrient fertilization as a foliar application (0, 25, 50, 75 and 100 % NPK). The plant height, stem width, leaf number, leaf area and cob height of sweet corn grown in Rengam soil series were significantly influenced by foliar macronutrient application. Notably, a rise in cob weight of sweet corns cultivated in Rasau soil series was observed at the 75 % rate, reaching 75 g, compared to 68 g for sweet corn grown in Rengam soil series. The foliar application of 100 % NPK resulted in the highest total leaf area at 252.92 cm2 compared to all other treatments. Regarding the cob fresh weight and dry matter content of sweet corn cultivated in the Rasau soil series, significant improvement noted with the 75 % NPK treatment, however plants grown in the Rengam soil series and treated with 75 % NPK as a foliar application did not exhibit significant effects. The concentrations of Fe and Mn in the corn stem from both soil series significantly increased with macronutrients foliar application. In the corn leaves grown in Rengam soil series, the concentration of nutrients was significantly influenced by the rate of NPK used as a foliar application in this study. Notably, the increased of Ca content in the treated leaves was significantly higher compared to control plants. Additionally, the contents of P, K, Cu and Zn in the corn flower of the plants in the Rengam soil series were significantly elevated in treated plants compared to untreated ones. Conclusively, based on this greenhouse study, it can be inferred that two foliar sprays of macronutrient solution at rates of 75 % and 100 % NPK greatly enhanced the growth, yield and nutrient contents of sweet corn cultivated in the Rengam and Rasau soil series.

The effect of balanced N, P, K, Ca, Mg fertilizer on soil and leaf nutrient and its correlation with growth and corn yield (Zea mays L.)

Fertilization in agricultural cultivation is important in increasing the supply of necessary nutrients for plants to achieve high yield and quality. This study aims to examine the balance of N,P,K,Ca, and Mg against nutrients in soil and plants and its correlation with the growth and yield of corn. There were 9 treatments of N, P, K, Ca, Mg fertilizer balance used, namely: control (A) and 1: 1: 1: 0: 0 (B); 0.25: 0.25: 0.25: 1: 1 (C); 0.5: 0.5: 0.5: 1: 1 (D); 0.75: 0.75: 0.75: 1: 1 (E); 1: 1:1: 1: 1 (F); 0.75: 0.75: 0.75: 0.25: 0.25 (G); 0.75: 0.75: 0.75: 0.5: 0.5 (H); 0.75: 0.75: 0.75: 0.75: 0.75 (I). Parameters observed included nutrients N, P, K, Ca, and Mg in soil and leaf, plant height, stem diameter, number of leaves, cob weight with and without husks, and cob length and diameter. The results showed that nutrient balance significantly affected nutrient levels in soil and leaf, plant growth, and yield of corn. N, P, K, Ca, Mg Fertilizer application with ratio 0.5: 0.5: 0.5: 1: 1 (D) increased soil N 100%, P 40%, K 108.33%, Ca 28.08%, Mg 30.17% higher than the control and plant leaf N, P, K, Ca, Mg about 101.60%, 12.50%, 10.13%, 50.98%, 101.41% respectively, thus providing higher growth and yield. There was a significant correlation between plant height with leaf N and K, stem diameter correlated with leaf Ca, and number of leaves correlated with Mg in corn leaf. Meanwhile, yield correlated with P.

Effects of different management practices on the growth and yield of corn

In Indonesia, corn is an important commodity that serves as the second source of carbohydrates after rice, whose productivity is influenced by management practices applied during cultivation. This research aimed to determine the effects of different management practices on the growth and yield of corn. This research was arranged in a single-factor Randomized Complete Block Design, with different agriculture management practices as treatments, consisting of TI1 = Best Practices (Drip Irrigation + Rice Husk + Mycorrhiza), TI2 = Farmers’ Practices (Furrow Irrigation) + Mycorrhiza, and TI3 = Farmers’ practices (Furrow Irrigation). The data observed were analyzed using Analysis of Variance and followed by the Post Hoc Tukey’s HSD at α= 5%. The results showed that the TI1 produced significantly higher plant height, stem diameter, leaf dry weight, weight of cob with cornhusk and kernel dry weight, and effectively suppressed weed growth compared to TI2 and TI3. TI1 produced a significantly higher number of leaves, root dry weight, and total dry weight compared to TI3, but not significantly different compared to TI2. TI1 produced not significantly different stem dry weight and harvest index compared to TI2 and TI3. The kernel dry weight per plant observed in TI1 was 157.63 g, which was 14.22% and 22.91% higher than in TI2 and TI3, respectively. Based on the coefficient correlation and path analysis, the number of leaves, plant height, and total dry weight should be considered as important plant growth variables to produce high kernel dry weight.

Brown manuring in maize (Zea mays): Effects on weed interference and crop productivity

A field experiment was undertaken during rainy (kharif) season 2017 at ICAR-Indian Agricultural Research Institute, New Delhi to study the effects of brown manuring on weeds and maize (Zea mays L.) productivity. Season-long weed infestation (~unweeded control) resulted in the highest reduction (~41%) in grain yield of maize. Among the brown manuring (BM) treatments, growing of 1:1 mixture of Sesbania bispinosa (12.5 kg seed/ha) + Crotalaria juncea L. (12.5 kg seed/ha) supplemented with 2,4-D 0.5 kg/ha applied at 35 DAS, resulted in the highest reduction in weed density (~93%) and dry matter (~94.4%). This BM, in these regards, was comparable with the atrazine + hand weeding (HW) at 35 days after sowing (DAS) and weed-free control treatments. All BM treatments suppressed noxious weed Cyperus rotundus, which was poorly or not controlled by the recommended tank-mixture of atrazine and pendimethalin. Weed-free control resulted in the highest values of maize plant dry-matter (~210.6 g/plant), cob weight (~155.9 g/cob), and grain yield (~6.0 t/ha). The atrazine + HW, Sesbania + Crotalaria (12.5 + 12.5 kg/ha) mixture applied with 2,4-D 0.5 kg/ha at 25 DAS, Sesbania 25 kg/ha with 2,4-D 0.5 kg/ha at 25 DAS, and pendimethalin 0.75 kg/ha + atrazine 0.75 kg/ha treatments were comparable with weed-free control on maize grain yield.

PENGARUH WAKTU PENYIANGAN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN JAGUNG HIBRIDA (Zea mays L) VARIETAS N 37

This research was carried out at UPTB BP3K Sungai Lilin, Tanah Sepenggal Lintas District, Bungo Regency. This research was carried out from March 25 2014 to June 25 2014. The aim of this research was to determine the effect of weeding time and to determine the right weeding time for the growth and yield of corn plants. The design used in this research was a Randomized Group Design (RAK) with 5 treatments and 4 replications, the treatments were as follows: P0 (No weeding), P1 (weeding at 14 days after planting), P2 (weeding at 21 days after planting), P3 (weeding at 28 days after planting) and P4 (weeding at 35 days after planting). The variables observed were plant height (cm), total leaf area (cm2), age at start of flowering (DAT), net cob weight (g) and dry shelled corn yield (tons/ha). The results of the research show that different weeding times have a real influence on plant height (cm), total leaf area (cm2), age when flowering starts (DAP), net cob weight (g), but have no real effect on dry shelled corn yield ( tons/ha) in corn plants. Overall, weeding time at 14 days after planting has the best effect on the growth and yield of corn plants.

Response of Biofertilizer and Biochar on Growth and Yield of Baby Corn

The field experiment was conducted at Crop Research Farm, Department of Agronomy, Naini Agriculture Institute, SHUATS, Prayagraj, UP, during the Zaid season of 2023. The experiment was laid out in Randomized Block Design with ten treatment combinations which are replicated thrice. The experiment involves with the biofertilizers like azospirillum(10g and 20g/kg seed),azotobacter(10g and 20g/kg seed) along with biochar(0t/ha,10t/ha,40t/ha). Among the various treatment combinations in (treatment-9) with the application of Azospirillum 10g/kg seed along with Azotobacter 10 g/kg seed and Biochar 40 t/ha significantly recorded higher plant height (117.13 cm), plant dry weight (34.33 g), cobs/plant (1.87), cob length without husk (14.58 cm), cob weight without husk (12.09 g) and cob yield without husk (4.70 t/ha). Maximum gross returns (2,35,000.00 ₹/ha), were obtained in (treatment-9) whereas maximum net returns (1,27,001.00 ₹/ha) and higher benefit cost ratio (1.74) was obtained in (treatment-8) with application of Azospirillum 10g/kg seed along with Azotobacter 10g/kg seed and Biochar 10 t/ha.

ВЛИЯНИЕ НЕКОРНЕВЫХ ПОДКОРМОК НА ФОРМИРОВАНИЕ ГЕНЕРАТИВНЫХ ОРГАНОВ У КУКУРУЗЫ

Research was carried out with the aim of developing techniques to promote better ear formation in plants and improve the quality of corn grain for the production of valuable feed. The two-factor experience was laid in 2019-2021 on gray forest soils of Kama region of the Republic of Tatarstan. The experimental plot was characterized by the following indicators: gray forest soil, heavy loamy, humus content (according to Tyurin) is low (3.8%), mobile phosphorus and potassium (according to Kirsanov) are respectively very high (288 mg/kg of soil) and increased (153 mg/kg of soil). kg of soil), pH 6.5. The research was carried out in a two-factor field experiment, the scheme of which included the following options: background nutrition (factor A) - without fertilizers (control), NK for a yield of 50 t/ha of green mass of corn, NK for 50 t/ha + foliar feeding with liquid microfertilizer Batr Zn , inlay GSN-2004 + foliar fertilizer Batr Zn%, corn hybrid (factor B) - early maturing three-line hybrids of universal use Nur (FAO 150) and Bilyar-160 (FAO 160), as well as mid-early double interline hybrid Voronezhsky-279 (FAO 290). The inclusion of foliar feeding with organomineral microfertilizer Batr Zn at a rate of 1 l/ha in the 8-leaf phase against backgrounds with the use of mineral fertilizers has a positive effect on the development of the generative organs of corn (cob weight increases by 0.5...5.8 g, weight of 1000 grains - by 5...7%, compared to the NK option at 50 t/ha). At the same time, the yield of green mass increases by 6...8%. The grain harvest reaches 59.37 (hybrid Bilyar-160); 59.8 (hybrid Nur) and 67.25 c/ha (hybrid Voronezh-279). Foliar feeding of Batr Zn on a fertilized background helps to improve the quality indicators of corn feed. The content of sugars increases, relative to the control variant without fertilizers, by 2%, crude protein - by 0.2% and crude fiber - by 3...4%.

Effect of Shade Intensities on Growth, Biomass and Grain Yield of Green Grams (Vigna radiata) and Maize (Zea mays) in Kitui County

Maize and green grams are important food security crops grown and consumed in the arid and semi-arid regions of Kenya. High temperatures and low soil moisture lead to yield reduction. A two-season study was conducted to investigate the effect of different shade intensities (0 %, 50 % and 70 %) on green gram and maize growth, biomass and grain yield in Kitui County (1.4° S, 37.9° E). The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications at the South Eastern Kenya University (SEKU) farm. Results showed that maize had significantly (p<0.05) higher plant height, Ear height, cob weight, total biomass and grain yield per hectare in 50%, followed by 70% and lowest in 0%. Green gram plants had significantly (p<0.05) higher number of pods, seeds per pod, total above-ground biomass and grain yield per hectare 50 % (1759 kg/Ha), 70 % (1553 kg/Ha) and lowest in 0% (478 kg/Ha). The plants grown under 50% shade intensity had higher grain and biomass yield for both green grams and maize compared to those under 70% and 0% shade intensity, which may be attributed to adequate moisture due to reduced evapotranspiration. The study demonstrated that the cost-benefit analysis of shade intensity on green grams farming system yield and break-even price was best at 50% shade intensity. The study demonstrated that the cost-benefit analysis of shade intensity in maize farming systems is not significant. To improve grain and biomass yield of both green grams and maize for food and nutrition security, study recommends the use of 50% intensity in growing green grams in ASALs due to benefits including soil moisture conservation, improved plant growth, yield, economic efficiency and cost-benefit ratios

Growth and production of sweet corn (Zea mays saccharata Sturt.) as an intercrop in immature oil palm plantations (TBM 2) on dystrudepts soil given MB green manure (Mucuna bracteata) and NPK fertilizer

This research aims to examine the interaction, the main effects of Mucuna bracteata green fertilizer, NPK and obtain a combination that produces the highest production of sweet corn. The research was carried out in Kembang Damai Village, Pagaran Tapah Darussalam District, Rokan Hulu Regency from April to July 2023. The research was carried out experimentally using a factorial randomized block design, where factor I was the provision of Mucuna bracteata green fertilizer consisting of 3 levels, namely 4.18 . t.ha -1 , 8.36 t.ha -1 and 12.54 t.ha -1 . Factor II is the provision of NPK which consists of 3 levels, namely 0.1 t.ha -1 , 0, 2 t.ha -1 and 0.3 t.ha -1 , so there are 9 treatment combinations and they are repeated 3 times, so there are 27 experimental units. The parameters observed were the amount of chlorophyll, photosynthesis rate, transpiration rate, stomatal conductivity, and CO2 concentration in cells, plant height, time when female flowers appeared, harvest age, weight of cobs with husks, and weight of cobs without husks. The variance data was further tested using Duncan's multiple distance test at the 5% level. The results of the research showed that there was an interaction between Mucuna bracteata and NPK green manure treatment on the parameters of female flower emergence time, harvest age and husk ear weight, but not on other parameters . The application of Mucuna bracteata green fertilizer had a significant effect on the time the female flowers appeared, the age of harvest, and the weight of the husk cobs. NPK fertilizer has a significant effect on harvest age and husk cob weight. Providing Mucuna bracteata green fertilizer 12.5 t.ha -1 and NPK 0.2 t.ha -1 is a combination that provides higher production results in the weight parameter of husk cobs, namely 527,833 g per plant.

Effect of Nitrogen Management through Nano Fertilizers on Growth, Yield Attributes and Yield of Maize (Zea mays L.)

A field experiment was carried out during Kharif 2022-23 at Integrated Farming System demonstration unit, L-block, GKVK, Bengaluru, consisting 11 treatments replicated thrice and laid out in Randomized Complete Block Design. The treatments consisted of T1-(No nitrogen), T2-Nitrogen management as per package of practices (UASB), T3-50%RDN+foliar spray of nano-N at 30 and 50 DAS, T4-50%RDNP+ foliar spray of nano-NP at 30 and 50 DAS, T5-Foliar spray of only nano-N at 30, 50 and 70 DAS, T6-Foliar spray of only nano-NP at 30, 50 and 70 DAS, T7-25%RDN+foliar spray of nano-N at 30, 50 and 70 DAS, T8-25%RDNP+foliar spray of nano-NP at 30, 50 and 70 DAS, T9-100% RDN+NDVI based nano-N spray, T10-100% RDN+NDVI based nano-NP spray and T11-100% RDN+NDVI based conventional urea spray. The results revealed that application of 100%RDN+NDVI based nano-N spray recorded higher plant height (229.3 cm), number of leaves at 90 DAS (15.76), dry matter production (354.9 g plant-1), GreenSeeker reading at 30, 50 and at 70 DAS after spray (0.43, 0.58 and 0.73, respectively), cob length, cob girth and cob weight (20.5 cm, 5.49 cm and 201.9 g plant-1, respectively) and higher kernel and stover yield (7729 and 8948 kg ha-1, respectively)over other treatments and on it was par with 100% RDN+NDVI based conventional urea spray and 100% RDN + NDVI based nano NP spray.

Influence of Different Herbicides on the Growth, Growth Attributes and Yield of Maize (Zea mays L.) under Central Plains Zone of Uttar Pradesh

The field experiment was carried out at Agriculture Research Farm, Integral University, Lucknow, Uttar Pradesh, India during Kharif, 2021. The experiment was aimed at studying the effect of herbicides on the growth and yield of maize crop. The experiment was laid down in the Randomized Block Design (RBD) with 12 treatments and was replicated three times. The highest plant height was observed in weed free treatment due to weed free environment all over the maize growth period but among the herbicides, treatment(T8) Atrazine @ 0.5 kg a.i. ha-1 PE followed by Tembotrione @ 0.120 kg a.i. ha-1 PoE at 20 DAS showed highest plant height of 115.2 cm, 173.63 cm and 226.29 cm at 40 DAS, 60 DAS and at harvest stage, respectively. The same treatment (T8) also resulted in the highest number of leaves per plant. The highest cob weight per plant, grain weight per cob, number of seed per cob and test weight of 219.23 g, 144.1 g, 579.23 and 27.43 g, respectively was observed in the same treatment (T­8). The highest grain yield (5199 kg ha-1) was observed in the weed free treatment but among the herbicidal treatment, the treatment T8 obtained the highest grain yield of 4803 kg ha-1 and was at par with the treatment (T7) Atrazine @ 0.5 kg a.i. ha-1 fb 2,4-D sodium salt @ 0.5 kg a.i. ha-1 PoE at 30 DAS bearing grain yield of 4723 kg ha-1. Among the herbicidal treatments, the treatment (T8) also resulted in the highest biological yield (12042 kg ha-1) and Harvest index (39.89%) which was at par with the treatment Atrazine @ 0.5 kg a.i. ha-1 PE followed by 2,4-D sodium salt @ 0.8 kg a.i. ha-1 PoE at 30 DAS (T7).

The use of natural minerals compound fertilizers for the production of sweet corn

The natural mineral of polyhalite, which consists of potassium, sulphur, magnesium, and calcium, has the potential to be to supply various essential nutrients to complete the plant’s nutrient requirement, such as sweet corn. The aim of this study to determine the effect of multiple doses of K-Ca-Mg-S fertilizer on sweet corn plants. This research was conducted at Medan City, North Sumatra, with a height of ± 25 meters above sea level from March to May 2023. This study used a Non-Factorial Randomized Block Design with 5 replications and 5 treatments consisting of the dose of fertilizer, namely 0; 2.14, 4.28, 6.42, and 8.57 g/plant. The results of the study showed that several doses of K-Ca-Mg-S compound fertilizer were able to accelerate the male flowering age, which was 53.8 days after planting (dap), the female flowering age was 57.4 dap, and was able to increase the weight of husked cobs, namely 157.758 kg, and seed sugar content of 15.6 % Brix, but did not increase the harvest index.

Effects of Tillage Practices on the Growth and Yield of Maize, in the Guinea Savannah Ecological Zone of Ghana

Abstract: A field study was conducted to investigate the influence of conventional tillage (CVT) and conservation tillage (CST) on various aspects of maize yield parameters and grain yield, using the Wagdaata maize variety. The study was conducted at the experimental farm of Tamale Technical University, located at Northern region, Tamale, Sagnarigu municipality in the Guinea savannah ecological zone of Ghana in 2023 cropping season. A randomised complete block design was used with three replicates. The treatments consisted of two tillage practices: conventional tillage (CVT) and conservation tillage (CST) and a control. The CVT involved plowing the soil to a depth of 15cm using a tractor plough with disk to plow. The CST involved use of hoe to make ridges and the control was direct seeding without loosen the soil. Plant height was evaluated every two weeks by measuring the height of maize to the base of the apex leaf. Other data collected were: maize leaf area. Cob characteristics including ear height, cob weight with husk, fresh cob weight, and dry cob weight, number of cobs per hectare and number of kernels per cob, 1000 seed weight and grain yields. The present study revealed that plant height, maize leaf area and shoot dry weight increased in the ridges than the other tillage practices. Cob characteristics such as ear height, cob weight with husk, fresh cob weight, and dry cob weight, number of cobs per hectare and number of kernels per cob, 1000 seed weight and grain yields was also optimum with the ridges as a against the other tillage practices. The study showed increased grain yield by 66% in the ridge tillage (2,389 kg/ha) over the plough tillage (1,436 kg/ha). The study provides comprehensive insights into the impact of tillage practices on various aspects of maize growth and yield, with ridge tillage emerging as a favorable practice for optimizing maize plant development and overall productivity in the Guinea savannah ecological zone of Ghana.

Yield Test of Shade-Tolerant Maize Using the Intercropping Method of Maize-Soybean Under Coconut Trees

Maize is a light-dependent crop, but new varieties have been developed that can tolerate shade. This allows farmers to grow maize as an intercrop between coconut trees, making more efficient use of their land. Farmers can also intercrop with legume plants, which provide additional nitrogen through Rhizobium bacteria, leading to increased maize productivity. The aim of this study was to obtain the best intercropping pattern for maize and soybeans under coconut trees that results high yields in maize. The study was conducted in Padang Pariaman Regency of West Sumatra, at an altitude of approximately 150 meters, from February to July 2022. The experimental design was a Split Plot Design with Randomized Block Design, consisting of three main plot levels (planting time) and four subplot levels (planting model). The results of the study indicate that intercropping maize and soybeans under coconut trees has no effect on the weight of maize cobs, but there is a positive correlation between ear weight, cob length, cob diameter, number of rows per cob, and the weight of 1000 maize seeds.

Aplikasi Pupuk Kotoran Kelinci Dan Pupuk Anorganik Pada Tanaman Jagung Pulut (Zea Mays Ceratina L.)

The aim of the research was to determine the effect of rabbit manure application on the growth and yield of pulut corn, to determine the correct NPK dose on the growth and yield of pulut corn. The research was carried out from February to July 2023. The research was carried out at the UNISKA Integrated Field Laboratory, Rejomulyo Village, Kediri City District, with an altitude of 67 meters above sea level. The average temperature in the morning is 27.22? and in the afternoon 34.36? with average humidity in the morning 86.07 and in the afternoon 49.32. Sandy loam soil type with an acidity level of 6.7 pH. Using a factorial randomized block design (RAK) with two factors. The first factor consists of two levels of rabbit manure treatment, namely, K1 = solid rabbit manure (3.5 kg/plot) and K2 = liquid rabbit manure (40 ml/plant). The second factor is the dose of NPK fertilizer with 4 levels of treatment, namely, N0 = NPK fertilizer dose 0 gr/plant, N1 = NPK fertilizer dose 3 gr/plant, N2 = NPK fertilizer dose 6 gr/plant, N3 = NPK fertilizer dose 7 gr/plant . The data obtained from the observations were entered into a table for the F test using the variance analysis method and further tested using the 5% BNT test. Based on the research results, there was no interaction between rabbit manure treatment and the dose of NPK fertilizer on the growth and yield of pulut corn. Each treatment of rabbit manure and dose of NPK fertilizer showed a significant effect on the growth and yield of pulut corn. Rabbit litter treatment had a significant effect on the variables number of leaves, plant height and stem diameter. The dose of NPK fertilizer has a real influence on the number of leaves, plant height, stem diameter, ear length, ear diameter. The best cob weight without husks was shown in the NPK fertilizer treatment of 9 gr/plant.

Effect of salinity and drip fertigation on maize (<i>Zea mays</i>) and water use efficiency

Climatic variability is immensely pressurised on freshwater availability in arid and semi-arid ecosystems, leading to poor quality water for crop production not becoming uncommon, especially in coastal ecosystems. A field experiment was conducted during winter (rabi) season of 2022–23 at the Saline Water Scheme at Agricultural College Farm, Acharya N. G. Ranga Agricultural University, Bapatla, Andhra Pradesh to assess the impact of saline water on maize growth, yield and water use efficiency under drip fertigation. The experiment consisted 8 treatments laid in randomized block design (RBD) with 4 replications. The utilization of the BAW irrigation method, together with the application of a prescribed quantity of fertilizer, resulted in the highest plant height and dry matter accumulation during all phases of crop growth. These outcomes were comparable to those achieved by using a combination of fresh water and saline water with an electrical conductivity of 2 dS/m. The maximum values for the number of kernels per cob (451), cob length (17.2 cm), cob weight (164.4 g), kernel yield (7.38 t/ha), stover yield (9.61 t/ha) and water use efficiency (18.5 kg/ha mm) of maize were observed under the irrigation treatment T4. The parameters exhibited their minimum values when irrigation was conducted using water with a salt level of 4 dS/m and no fertilizers were used. However, there was no statistically significant difference observed in the number of cobs per plant and harvest index of maize when saline water was used in conjunction with drip fertigation. In the context of maize cultivation, employing a cyclic irrigation technique that alternates between salty (EC 2–4 dS/m) and freshwater sources, in conjunction with recommended dose of fertiliser (RDF) has the potential to deliver comparable crop development, productivity, and economic benefits when compared to the use of freshwater sources alone.

The Effect Of Concentration Of Rice Washing Water Poc And Potato Skin On Growth And Production Of Sweet Corn (Zea Mays Saccharata Sturt)

The research was conducted in the experimental field of the Faculty of Agriculture, Ekasakti University, Padang. October to December 2021. The research of giving is to get the best POC concentration of rice washing water and potato skins for the growth and yield of sweet corn (Zea mays saccharata Sturt). The experimental design used was a Randomized Block Design (RAK) with 5 treatments of 5 groups so that in total there were 25 experimental units, each experimental unit contained 4 plants so that the number of plants in the study was 100 plants. Treatment of POC concentration of rice washing water and potato skins as follows: A = 20% POC; B = 30% POC; C = 40% POC; D = 50% POC; E = 60% POC. Observational data obtained were analyzed statistically using variance. The results showed that the administration of POC rice washing water and potato peels had no significant effect on plant height, leaf length and longest leaf width, flowering age, cob length, cob diameter, number of rows on the cob, cob weight per plant, but significantly different on age. harvest. The best concentration of POC in rice washing water and potato peel on the growth and yield of sweet corn has not been found. Keywords: POC, sweet corn, growth, yield

Properties of Rooting, Growth and Yield of Corn (Zea mays L) at Various Watering Intervals

Limited water availability, particularly during the grain filling period, is a significant factor that affects the low production of corn. The root system plays a crucial role in adapting to water scarcity conditions. Hence, a study was conducted to investigate the impact of different watering intervals on the rooting properties, growth, and yield of corn plants. This research took place at the INSTIPER Yogyakarta experimental and research garden in Sempu Village, Wedomartani, Ngemplak District, Regency Sleman, Yogyakarta, from March 2023 to July 2023. The experimental design employed was a Completely Randomized Design (CRD) with a single factor, consisting of three watering treatments: once a day, once every 2 days, and once every 7 days. The parameters observed included rooting, growth, and yield. The findings revealed that the watering interval of every 7 days resulted in increased root length and a decrease in the number of leaves. Although the 7-day watering interval led to a decrease in the number of cobs, it did not affect cob length, cob diameter, cob weight with husks, cob weight without husks, and weight per 100 seeds.

Effect of Arbuscular Mycorrhiza and Kokazolla Fertilizer on Physiological Parameters and Production Components of Purple Maize (Zea mays L.)

The production of purple maize was essential to maintain the soil fertility development without environmental impact. The arbuscular mycorrhiza and kokazolla fertilizer are biological and organic material applications in the field. This study aims to determine the effect of arbuscular Mycorrhiza and Kokazolla fertilizer on purple maize production. This experiment used a group randomized design separate plot design. The main plot consists of 3 treatments (e0 = control, e1 = Mycorrhiza dose 7.5 g/plant, e2 = Mycorrhiza dose 15 g/plant), and the plot consists of 4 treatments (l0 = Control - NPK dose 0.3 Ton/Ha, 1 = Kokazolla dose 6.25 Ton/Ha, l2 = Kokazolla dose 12.5 Ton/Ha, and l3 = Kokazolla dose 18.75 Ton/Ha). The results showed that the application of Mycorrhizal biofertilizer 15 g/plant+Kokazolla fertilizer 18.75 Ton/Ha was higher for male flowering age, female flowering age, cob weight with petals per Ha, and cob weight without petals per Ha.

Impact of the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) infestation on maize growth characteristics and yield loss.

The fall armyworm [FAW; Spodoptera frugiperda (J.E Smith, 1797)] is an invasive and polyphagous insect that infests cereal crops, causing economic losses, and may be led to pose a threat to future the global maize crop in the future. Field trials were conducted to study the negative impacts of S. frugiperda on vegetative growth measurements, yield, and the components of the maize cultivar (Single-Hybrid 168 Yellow) in Luxor Governorate, Egypt. S. frugiperda larvae infestation to maize plants was observed in the 3rd week of June and so continued till the harvest in both 2021 and 2022 seasons. S. frugiperda had three peaks of the seasonal activity/season in the untreated (pesticide-free, control) and in the treated main plots by pesticides. Maize vegetative growth attributes (averages of plant height, stem diameter, and the number of green leaves per plant) displayed higher rates of the treated maize plants by insecticides against S. frugiperda. Maize grain, straw, and biological yield (kg/ha) were decreased in the untreated maize plants (insecticides free) than in the treated by insecticides. Concerning maize yield components, the treated plants were to outperform in the average length of a plant stem (cm), stem diameter (cm), and weight of cob (g), as well as, number of rows/cob, number of grains/ cob, number of grains/cob, maize cob grain weight (g) and weight of 1000-grains (g)], in comparison with the untreated plants. Also, the FAW infestation to untreated maize plants was decreased well in all calculated maize growth attributes, i.e., grain yield, and components. Regarding the relationship between variations in a given variable and the changes in S. frugiperda larvae numbers and plant damage percentage, the simple correlation and regression coefficient revealed a highly significant negative relationship in all the parameters tested. The obtained information may help farmers and decision-makers in the management of FAW populations based on an effective plan related to control measures that should be implemented.