Application Of Vermicompost Research Articles

Dynamics of Yield and Chlorophyll Content of Four Kangkung (Ipomea reptans Poir) Sequences With Soilless Cultivation System Due to Direct and Residual Effects of Vermicompost Application

The applications of organic fertilizers releasing nutrients slowly not only have a direct impact on the growing crop, but also, residual effects on the subsequent crops in the conventional crop cultivation systems. Studies on the residual effects of organic fertilizer in soilless crop cultivation are quite rare. The present study, which is a pot experiment conducted in a greenhouse, describes the dynamics of yield and chlorophyll content of kangkong as direct and residual effects of vermicompost for four consecutive plantings in soilless crop cultivation, further, compared with inorganic fertilizer treatment. The experimental design used was a randomized complete block design with different levels of vermicompost rates and a control treatment using inorganic fertilizer. The vermicompost was applied only in the first crop, while, inorganic fertilizer was supplemented in each crop. Fresh weight per plant per pot increases ~35 - 54% at the second planting compared with the first planting, thereafter, gradually decreases in subsequent planting. The content of chlorophyll A was found to be relatively constant, while the chlorophyll B content was highest in the first planting and, thereafter, subsequently decreased in further planting. The higher yields were found at 400 - 500 g pot-1 vermicompost fertilizer dose, insignificantly different from the inorganic fertilizers treatment.

Effect of vermicompost application strategies on field strawberry healthiness, yield and fruit quality

Effect of vermicompost application strategies on field strawberry healthiness, yield and fruit quality

Application of neem waste vermicompost in compensating nematode induced stress and upregulating physiological markers of tomato plants under glass house conditions after 10 days of exposure.

Farming, food processing, animal husbandry and other agro-based activities contribute to global environmental degradation by producing millions of tons of organic and inorganic solid waste. In terms of sustainable agriculture, agricultural waste management and conversion into useful products are essential. In addition, plants are facing various kinds of biotic stress, which ultimately affects their defense system. Altered defense systems in plants ultimately lead to the death of plants and a reduction in crop production. The present study is designed to keep the abovementioned fact in mind, which mainly focuses on the reuse of agricultural waste and its application to the antioxidant potential and structural components of tomato plants during nematode stress. In the present study, neem leaves were collected and mixed with cattle dung for the preparation of vermicompost. Then, tomato seeds were pre-treated with vermicompost extract before being germinated in earthen pots. After germination, they were transplanted to separate pots and inoculated with freshly hatched juveniles of Meloidogyne incognita. The experiments were conducted for 10 days under glass house conditions, and after that, plants were harvested and various physiological (antioxidant capacity, percent electrolyte leakage) and structural markers (carbohydrate content, Fourier transform infrared spectroscopy) were analyzed. Results revealed that all physico-chemical properties make vermicompost superior as compared to soil and pre-compost material. Further, nematode stress leads to altered physiological and structural markers as compared to uninfected seedlings. However, treatment with vermicompost significantly increases carbohydrate content and antioxidative capacity in a concentration dependent manner. In addition, electrolyte leakage was found to be decrease with an increase in the concentration of vermicompost. All these findings conclude that vermicompost has strong potential to limit the damage caused by nematodes and boost the antioxidant potential of the host plants. Further, this study provides strong evidence for using vermicompost as an eco-friendly alternative to chemical nematicides and a potential strategy for agricultural waste management. This is the first study in which the tomato plant's structural and physiological markers were assessed during nematode stress after being supplemented with vermicompost under glass house conditions for an initial 10 days of nematode exposure.

The effect of different doses of liquid vermicompost application on yield and yield components of some potato (Solanum tuberosum L.) varieties

The effect of different doses of liquid vermicompost application on yield and yield components of some potato (Solanum tuberosum L.) varieties

Productivity of Some Winter Wheat (Triticum aestivum L.) Varieties through Integrated Application of Vermicompost and Biochar in Sandy Soil

Productivity of Some Winter Wheat (Triticum aestivum L.) Varieties through Integrated Application of Vermicompost and Biochar in Sandy Soil

Aplikasi pupuk organik vermikompos sebagai komposisi media tanam pada pertumbuhan bibit kelapa sawit di pre-nursery

The research was conducted with the aim of identifying the response of organic fertilizer vermicompost as a composition of planting media in pre-nursery on the growth of oil palm seedlings. This research was conducted in Teaching Farm Wedomartani, Ngemplak, Sleman Regency, Yogyakarta from April to June 2022. This study implemented a randomized block design with a single factor. The composition of the planting media as a factor that consisted of five treatments, namely: subsoil (100%), subsoil (80%) + vermicompost (20%), subsoil (70%) + vermicompost (30%), subsoil (60%) + vermicompost (40%), and subsoil (50%) + vermicompost (50%). Each treatment was repeated three times. The results showed that the application of vermicompost as planting media composition in the pre-nursery with subsoil gave the oil palm seedlings higher growth than the control (without vermicompost). The application of subsoil with vermicompost gave the plant height, number of leaves, stem diameter, and wet and dry plant weight higher than the control. Application of subsoil (80%) + vermicompost (20%) produced the best plant height, number of leaves, stem diameter, and wet and dry weight of oil palm seedlings.

Do Vermicompost Applications Improve Growth Performance, Pharmaceutically Important Alkaloids, Phenolic Content, Free Radical Scavenging Potency and Defense Enzyme Activities in Summer Snowflake (Leucojum aestivum L.)?

Leucojum aestivum L. contains galanthamine and lycorine, which are two pharmaceutically valuable alkaloids. Vermicompost (VC), an organic waste product created by earthworms enhances soil quality and can improve the medicinal quality of the plant that is crucial to the pharmaceutical industry. The aim of this study was to determine the effects of four different VC concentrations (5 %, 10 %, 25 %, and 50 %) on L. aestivum growth parameters, alkaloid levels (galanthamine and lycorine), total phenol-flavonoid content, free radical scavenging potential, and defense enzyme activities (SOD and CAT) compared to control (no VC). The width, length, and fresh weight of the leaves were improved by 10 % VC treatment. The highest total phenolic content was found in the bulbs and leaves treated with 50 % VC. HPLC-DAD analysis of alkaloids showed that 10 % and 50 % VC treatments contained the most galanthamine in the bulb and leaf extracts, respectively. The application of 25 % VC was the most efficient in terms of lycorine content in both extracts. CAT activity was elevated at 10 %, 25 %, and 50 % VC. Based on the growth performance and galanthamine content of the bulbs and leaves, it can be concluded that a 10 % VC application was the most effective in the cultivation of L. aestivum.

The Responses of C, N, P and Stoichiometric Ratios to Biochar and Vermicompost Additions Differ from Alfalfa and a Mine Soil

The use of ecological stoichiometry is quite effective for exploring the nutrient dynamics and relationships between plants and soils. However, the way that the plant and soil stoichiometry changes with soil remediation in mining ecosystems remains unclear. Biochar and vermicompost are generally applied to remediate contaminated soil. In this study, a pot experiment was conducted with a mine soil planted with alfalfa. Biochar (B) and vermicompost (V) were added to the soil separately in three different proportions, equivalent to application rates (w/w) of 0% (control, CT), 2.5% (low rate, l), and 5% (high rate, h). This resulted in nine treatments, including control (CT), Bl, Bh, Vl, Vh, BlVl, BlVh, BhVl, and BhVh. The carbon (C), nitrogen (N), and phosphorus (P) concentrations and stoichiometric characteristics of the alfalfa aboveground parts (plant) and soil were investigated. The results showed that biochar application significantly increased the concentrations of soil organic C (SOC), soil total N (TN), soil total P (TP), soil C:N, and plant P concentration, but decreased plant N concentration, and plant C:P and N:P ratios. The effects of vermicompost addition on SOC, soil TN, TP, and stoichiometric characteristics depended on the biochar addition rates, but it increased plant N concentration and N:P, and decreased plant C:N under the condition of low biochar addition. Additionally, the plant N concentration was negatively correlated with soil N and total manganese (Mn) concentrations, whereas there was a positive correlation between plant and soil P concentrations. The soil total and available cadmium (Cd) were positively correlated with plant N concentration but negatively correlated with plant P concentration. The results indicated that the stoichiometric characteristics of plants and soil had diverse responses to biochar and vermicompost additions, and different soil heavy metal elements. Biochar and vermicompost application improved external P and N utilization by plants, respectively. Vermicompost addition enhanced biological N fixation in alfalfa. These findings suggest that vermicompost addition could be an optimal method by which to promote vegetation restoration in mine soils with poor N levels, and that biochar could be applied to low-P soils. The effects of heavy metals on plant and soil stoichiometric characteristics should be taken into consideration. Consequently, this study will provide scientific references for biochar and vermicompost applications in alfalfa planting and management, and vegetation restoration in mining areas.

Responses of soil nutrients and rhizosphere microbial communities of a medicinal plant Pinelliaternata to vermicompost.

Vermicomposting is an important strategy for restoring soil function and fertility. However, information on the effects of vermicompost application in intensive Pinellia ternata planting systems has rarely been reported. Here, we focus on the effects of different vermicompost levels and chemical fertilizer (CF) strategies on soil chemical properties, soil enzymes, and soil rhizosphere microbial communities (bacteria and fungi) in a field experiment. Compared to no added fertilizers (CK), vermicompost was more effective than the CF treatment in increasing P. ternata yield. We found that the 5 t ha-1 vermicompost treatment (VC2) significantly increased the tuber yield by 44.43% and 6.55% compared to the CK and CF treatment, respectively, and water-soluble exudates by 6.56% and 9.63% (P < 0.05). The vermicompost and CF treatments significantly increased the total phosphorus (TP), urease (Ure), and soil catalase (Cat) contents (P < 0.05). Compared to the vermicompost and CK treatments, the CF treatment significantly decreased soil organic carbon (SOC), C/N ratio, and soil acid phosphatase (Pac) (P < 0.05). Redundancy analysis (RDA) showed that Ure and total potassium (TK) were the major drivers in the bacterial community, whereas TP, total nitrogen (TN), Pac, and TK were the major drivers in the fungal community. We also found a positive correlation between soil enzyme activities, including between Ure and bacterial genera (Clostridium, Pseudoclavibacter, Stella, Hyphomicrobium, Mesorhizobium, and Adlercreutzia). In summary, vermicompost application promotes P. ternata soil microecosystems and improves soil fertility, soil enzyme activities, and rhizosphere microbial structure and function. Vermicomposting is a novel and promising approach to sustainable ecological cultivation of Chinese herbs via the promotion of soil properties and beneficial organisms.

Effect of Intercropping Farming and Vermicompost System on the Nutritional Quality and Yield of Rice and Pigeonpea

The present study explains the application of vermicompost during the cultivation of rice and pigeon pea in relay intercropping farming. This study examined vermicompost's effect on increasing yield and nutrient quality of rice and pigeon pea. In North India, Kharif crops were grown for three seasons from 2019 to 2021 in the intercropping farming system. The main crop (rice) was sown with pigeon peas (legumes) in July 2019 in rows and there were a total of 36 rows each of 6 m, of which nine rows were for rice having a distance of 70 cm between each row and pigeon peas each with a distance of 50 cm between each row and the other nine were for one row of rice and another of pigeon peas having a distance of 50 cm among them. Each type of crop was treated with control as urea and treated with vermicompost for analysis of results. The result of the study, exhibited significant increase in macro elements K &amp; P in intercropping along with vermicompost (4320 mg/kg &amp; 1100 mg/kg) as compared to control (4200 mg/kg&amp; 910 mg/kg) as well as microelements Zn &amp; Fe in treated (41.4 mg/kg &amp; 65.6 mg/kg) as compared to control (38.2 mg/kg&amp; 60.2 mg/kg) were found higher in vermicompost treated intercropping. Also, yield (18.01 kg/ha) and HI (Harvest Index) (0.82) were found more in intercropping treated with vermicompost as compared to conventional one treated with urea (14.23 kg/ha) and (0.62). Hence, vermicompost along with intercropping was found to be effective in increasing the yield and nutritional value of crops.

Application of vermicompost in improving the growth, water content, and vase life of LA hybrid lily

One of the limitations of soilless cultivation is its high cost. Considering this issue, this technique is cost-effective when the obtained product is of high quality from a commercial point of view. Lilies are the world’s fourth most popular cut flowers in terms of commercial importance. It is crucial to provide the lily with a culture medium that will extend its vase life and enhance its morphological and marketable characteristics. Vermicompost (VC) improves plant growth and performance with better access to water and nutrients. This study investigated the effect of different VC levels on LA hybrid lilies’ growth parameters and vase life. LA hybrid lily bulbs were planted at 20, 35, 50, and 65% VC levels on a cocopeat and perlite bed. First, growth traits such as the number of leaves and flowers, leaf area, plant height, petals’ anthocyanin content, some plant organs’ water content, and finally, vase life were measured. It was found that only the 20% VC treatment resulted in an increase in leaf number (8.6%) and flower number (3.6%). Furthermore, only in this treatment did water absorption in cut flowers and vase life increase by 43.5% and 9.8%, respectively. This research showed that the 20% VC treatment (V1) performed better in producing compact cut flowers with freshness and longer vase life.

Response of scented rice landraces of North Bengal under organic nutrient management in Darjeeling hills

The traditional practice of growing scented rice in Darjeeling Himalayas needs refinement in nutrient management for sustained production with desired quality. The effect of organic nutrient sources (Cow dung manure @ 5 t/ha, Vermicompost @ 1.5 t/ha, Mustard cake @ 0.5 t/ha, and Leaf mould @ 1 t/ha) on two aromatic rice cultivars (Kalture, and Kalonunia) was studied in a split-plot design during wet (kharif) season of 2021 at Uttar Banga Krishi Viswavidyalaya, Kalimpong, West Bengal. Kalture had taller plants (137.1 cm) and lodging susceptibility (score 4.0) at harvest, while Kalonunia remained unlodged. Kalonunia produced 16.1% greater grain yield (3.32 t ha-1 vs. 2.86 t ha-1) over Kalture due to more number of panicles m-2 (356.2) and filled grains panicle-1 (90.1). Both aromatic rice cultivars had medium-slender (MS) white kernels, but Kalonunia had higher protein content (7.3%), alkali spreading value (score 6.0) and aroma (score 1.8) than Kalture (6.7%, score 5.7 and score 1.6). The application of vermicompost @ 1.5 t ha-1 resulted in higher grain yield (3.22 t ha-1), but mustard cake @ 0.5 t ha-1 might be better option due to moderate yield (3.11 t ha-1), better grain quality, and greater residual N (235.1 kg ha-1), P status (23.4 kg ha-1) in hill soil of West Bengal.

Analysis of Purple Eggplant Growth After Vermicompost and NPK Fertilizer Treatment

Eggplant growth rate is determined by genetic and environmental factors. Environmental factors that affect eggplant growth include the availability of nutrients on agricultural land. Research on analysis of purple eggplant growth after vermicompost and NPK fertilizer treatment was carried out from March to July 2023. This study aims to analyze the effect of the application of vermicompost on the growth of purple eggplant. The application of NPK fertilizer on the growth of purple eggplant. The interaction effect of vermicompost and NPK fertilizer treatment on purple eggplant growth. Growth parameter data were analyzed using the F test. The results showed that: Vermicompost application increased stem height, total leaves and leaf length but did not increase leaf width and stem diameter of purple eggplant. The application of NPK fertilizer was effective in increasing stem height, total leaves, leaf length, leaf width and stem diameter of purple eggplant. The interaction of vermicompost treatment and NPK fertilizer was not effective in increasing all measured growth parameters.

Effects of biochar and vermicompost on growth and economic benefits of continuous cropping pepper at karst yellow soil region in Southwest China.

Recently, biochar (B) and vermicompost (V) have been widely used as amendments to improve crop productivity and soil quality. However, the ameliorative effects of biochar and vermicompost on the continuous cropping of pepper under open-air conditions, particularly in the karst areas of southwestern China, remain unclear. A field experiment was conducted to study the effects of biochar and vermicompost application, alone or in combination, on the yield, quality, nutrient accumulation, fertilizer utilization, and economic benefits of continuous pepper cropping from 2021 to 2022. The experiment included six treatments: CK (no fertilizer), TF (traditional fertilization of local farmers), TFB (TF combined with biochar of 3000 kg·ha-1), TFV (TF combined with vermicompost of 3000 kg·ha-1), TFBV1 (TF combined with biochar of 1500 kg·ha-1 and vermicompost of 1500 kg·ha-1), and TFBV2 (TF combined with biochar of 3000 kg·ha-1 and vermicompost of 3000 kg·ha-1). Compared with the TF treatment, biochar and vermicompost application alone or in combination increased the yield of fresh pod pepper by 24.38-50.03% and 31.61-88.92% in 2021 and 2022, respectively, whereas the yield of dry pod pepper increased by 14.69-40.63% and 21.44-73.29% in 2021 and 2022, respectively. The application of biochar and vermicompost reduced the nitrate content and increased the vitamin C (VC) and soluble sugar content of the fruits, which is beneficial for improving their quality. Biochar and vermicompost application alone or in combination not only increased nutrient uptake but also significantly improved agronomic efficiency (AE) and recovery efficiency (RE). In addition, although the application of biochar or vermicompost increased production costs, the increase in yield improved net income (ranging from 0.77 to 22.34% in 2021 and 8.82 to 59.96% in 2022), particularly in the TFBV2 treatment. In conclusion, the use of biochar and vermicompost amendments had a positive effect on the productivity and economic benefits of continuous pepper cropping, and the co-application of biochar and vermicompost could be an effective nutrient management strategy for the continuous cropping of pepper in the karst mountain areas of southwest China.

Effect of Organic and Inorganic Fertilizers on Soil Physical Properties &amp; Nutrients Content and Uptake of Summer Green Gram

The investigation was carried out during summer season to know the effect of different organic and inorganic fertilizers on physicochemical properties of soil &amp; content and uptake of plants. The experiment was laid out in factorial randomized block design (FRBD) followed by twelve treatments with four replications. Water holding capacity, bulk density, porosity of soil was not significantly influenced by application of organic and inorganic fertilizers at harvest. Application of vermicompost @ 1.0 t ha-1 recorded significantly higher nitrogen content &amp; uptake in seed and stover and potassium content in stover of green gram which was at par with incorporation of FYM @ 4 t ha-1 but phosphorus content &amp; uptake was not significantly influenced by either incorporation of FYM or vermicompost or inorganic fertilizer. The use of 100% RDF (20 kg N + 40 kg P2O5 ha-1) resulted in significantly higher uptake of nitrogen and potassium by seed, stover and total uptake by crop and were at par with the application of 75% RDF (15 kg N + 30 kg P2O5 ha-1). Nitrogen, phosphorus and potassium content &amp; uptake in seed, stover and total uptake of green gram was significantly higher recorded with the incorporation of FYM @ 4 t ha-1 which was at par with application of vermicompost @ 1 t ha-1. Application of farm yard manure @ 4 t ha-1 or vermicompost @ 1 t ha-1 along with inorganic fertilizers @ 75% RDF (15 kg N + 30 kg P2O5 ha-1) is best suited for improving physico-chemical properties of soil and nutrients content &amp; uptake of green gram.

Effect of Organic Manure on Growth and Yield of Chickpea (Cicer arietinum L.) Varieties

The field experiment was conducted during Rabi 2022, at Crop Research Farm, Department of Agronomy, SHUATS, Prayagraj (U.P). The experiment was laid out in Randomized Block Design with ten treatments and three replications viz. T1: Radhey + Panchgavya 3%, T2: Radhya + vermicompost 2.5 t/ha, T3: Radhya + Panchgavya 3% + Vermicompost 2.5 t/ha , T4: Pragati + Panchagavya 3%, T5: Pragati +Vermicompost 2.5 t/ha, T6: Pragati + Panchagavya 3% + Vermicompost 2.5 t/ha, T7: Avrodhi + Panchgavya 3%, T8: Avrodhi + Vermicompost 2.5 t/ha, T9: Avrodhi + Panchgavya 3% + Vermicompost 2.5 t/ha and T10: Control: 100% RDF. The results of the experiment obtained that application of Panchgavya and Vermicompost along on the Pragati variety significantly increased the growth parameters viz. plant height (58.24 cm), number of nodules (62.60), plant dry weight (65.60 g/plant) and yield parameters viz. number of pods per plant (35.05), seed index (22.71 g), seed yield (3.41 t/ha) and stover yield (4.83t/ha). This treatment also showed higher gross returns (1,70,500 INR/ha), higher net returns (1,15,102 INR/ha) and B:C (2.08).

Vermicompost Improves Tomato Yield and Quality by Promoting Carbohydrate Transport to Fruit under Salt Stress

To explore the effect of vermicompost on the yield and quality of tomato cultivated in salty soil, we investigated the soil chemical properties, the yield, vitamin C, organic acid, soluble solids, and nitrate of fruit, photosynthesis, and carbohydrates of plants grown under various salt levels applied with the application of either commercial chemical fertilizers, cow manure, or vermicompost. Results showed that the tomato yield was not increased from the chemical fertilizer application, while there was an increase from the cow manure and vermicompost (increased 31.7% and 65.2%, respectively) under salt stress. Compared to no salt stress, the contents of vitamin C, organic acid, soluble solids, and nitrate increased 26.55%, 40.59%, 46.31%, and 35.08%, respectively, under salt stress (2 g NaCl·kg−1 soil). Compared with the Control, the application of chemical fertilizers failed to improve the sugar/acid ratio but increased nitrate content, while cow manure and vermicompost improved the sugar/acid ratio by 42.0% and 73.1%, respectively. Particularly, vermicompost increased vitamin C and reduced nitrate to the greatest extent among the different fertilizer treatments. The decrease in sodium (Na+) in the roots and leaves, increase in carbohydrates in fruit, and photosynthetic efficiency of leaves imply an amendment effect of vermicompost on salt stress. Moreover, vermicompost also facilitated the transit of carbohydrates from leaves to fruits by increasing the accumulation of nitrogen, phosphate, and potassium in fruits, leaves, and roots, while decreasing proline and soluble protein accumulation in leaves and roots. In conclusion, vermicompost could alleviate the adverse effect of salt stress and improve tomato yield and fruit quality by improving the photosynthetic capacity and promoting carbohydrate transport to fruit. The findings give a new perspective on the beneficial effect of vermicompost on tomato yield and quality.

Impact of P Enriched Compost on Growth and Yield Attributes of Barnyard Millet in Red and Black Soils of Madurai District, India

A field study was conducted during the summer (kharif) season of 2023 at the Lalapuram village, Thirumangalam block of Madurai district, to assess the influence of phosphorus-enriched compost on the growth and yield parameters of barnyard millet in both red and black soils. The recommend dose of barnyard millet was 40: 20: 0 kg ha -1 of NPK in which the recommended dose of P (20 kg ha -1) was given in form of enriched compost and the enrichment was done at 1: 10 ratio of P source and compost. Three different types of compost such as farmyard manure compost, municipal solid waste compost and vermicompost were enriched with two different P sources such as single super phosphate @ 100 kg / t of compost and rock phosphate @ 100 kg / t of compost. Azophos, a plant growth promoting rhizobacteria based microbial consortium was added to the P enriched compost @ 2 kg / ton of compost. Among the different combinations, application of SSP enriched vermicompost @ 750 kg ha -1 along with microbial consortium performed better in both the soils. The growth and yield attributes of barnyard millet in black soil was better compared to that of red soil. SSP enriched vermicompost @ 750 kg ha -1 along with microbial consortium recorded the highest growth parameters in terms of no. of tillers per plant (8.71), Leaf area index ( 2.98 ), root length ( 20.7 cm) and dry matter production (5260.1 kg ha -1) at 60 DAS and yield parameters in terms of no of productive tillers (6.81), panicle length (21.4 cm), panicle weight (14.65 g), 1000 grain weight (3.24 g), grain yield (2350 kg ha -1) and stover yield (4420 kg ha -1). Hence, it was found that the application of SSP-enriched vermicompost coupled with azophos at 30 and 60 DAS of the crop growth stages, can curtail N and P fertilizer consumption by 50 and 100 percent respectively while fostering sustainable plant growth and enhancement of yield.

Arbuscular mycorrhizae increase but vermicompost decrease the sun protection factor (SPF) in leaves of Hymenaea martiana Hayne seedlings

This study aimed to select the most efficient combination of arbuscular mycorrhizal fungi (AMF) and substrate to increase the photoprotective and in vitro antioxidant activities in Hymenaea martiana Hayne leaves. Hymenaea martiana seedlings were grown in soil with or without 10% vermicompost and inoculated with three AMF species: Acaulospora longula, Gigaspora albida, and Claroideoglomus etunicatum. Seedlings grown in soil without vermicompost or AMF inoculation served as controls. After 148 days of growth in a greenhouse, the photoprotective and antioxidant activities, and the production of some phenolics in the leaves were evaluated. Vermicompost supplementation reduced the photoprotective and antioxidant effects in extracts compared to the control. However regardless of the vermicompost treatment, mycorrhizal colonization resulted in a 40% increase in photoprotective activity compared to control; this enhancement was correlated with the increased concentration of proanthocyanidins in mycorrhizal plants. AMF inoculation improves the quality of H. martiana phytomass, dispensing the application of vermicompost in the cultivation substrate. This is the first report on the potential of AMF and vermicompost to increase the sun protection factor in H. martiana leaves.

The Effect of Vermicompost Application on Yield and Nutrient Concentration of Oily Rose

In the study, the impact of employing vermicompost to boost oil rose (Rosa damascena Mill.), a native of Isparta province, to improve yield and nutrient content, was explored. Four different doses (V0: 0 kg ha-1, V1: 1000 kg ha-1, V2: 2000 kg ha-1, and V3: 3000 kg ha-1) of vermicompost were tested in the field conditions at 3 replicates. Vermicompost was applied to the canopy projection area and incorporated into the soil. Flower harvest was started on April 30, 2018, and throughout 20 days, the blooming flowers were collected and weighed daily basis. Following the harvest, leaf samples were collected from the plants, and the concentrations of certain macro and micronutrients were assessed.The study's findings demonstrated that applying vermicompost boosted the yield of oily rose blooms. The greatest yield value was determined to be 5850 kg ha-1 at a vermicompost dose of 2000 kg ha-1, which was 660 kg ha-1 greater than the control application. It was observed that vermicompost treatments had no significant influence on plant nutrient concentrations. This condition is assumed to be related to the removal of minerals from the plant during harvest. The findings indicate that the usage of vermicompost can contribute in the production of oil roses, and a dose of 2000 kg ha-1 can be suggested. This research establishes the feasibility of employing vermicompost in oil rose cultivation and sets the framework for future research.