Asian Journal of Soil Science and Plant Nutrition
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Effect of Different Nutrient Combinations on Quality of Sweet Corn (Zea mays L. Var. Saccharata.)
No full textA field experiment was conducted at Post Graduate Instructional Farm, Mahatma Phule Krishi Vidyapeeth, Rahuri, India, during Rabi season 2020. The trial was laid out in Randomised Block Design with nine treatments replicated thrice. The soil of the experimental plot was clay loamy, medium in available nitrogen, medium in available phosphorus, and high in available potassium. The sowing was done on 24 November 2020. The general recommended dose of fertiliser applied was 120:60:40 N: P2O5: K2O kg ha-1+ 10 t FYM ha-1. Application of 125% general recommended dose of fertiliser along with a foliar spray of 2% 19:19:19 NPK at 30 and 45 DAS recorded significantly higher crude protein content in cob and stover (11.12%, 5.18%), Protein Yield (1878 kg ha-1)
Response of Potassium Humate Extracted from Different Organic Sources on Yield and Quality of Green Chilli
No full textAim: In recent trend of organic farming, use of humic substances plays important role, as it act as biostimulants to boost the yield of crop. Humic substances can be easily obtained by locally available organic sources. Hence, three different organic sources viz. Farm Yard Manure (FYM), vermicompost, lignite were characterized for their physico-chemical properties and quality parameters along with nutrients to judge their quality and maturity to extract humic substances. The potassium salt of humic acid extracted from these three sources were used as foliar application at different concentrations to study their effects on yield and quality of green chilli.
Study Design: The pot culture experiment was conducted in Completely Randomized Design comprising eleven treatments with three replications.
Place and Duration of the Study: The experiment was conducted in rabi season 2021-22 at College of Agriculture, Karad, Maharashtra, India.
Methodology: Three organic sources viz. Farm Yard Manure (FYM), vermicompost and lignite were used to extract humic substances (humic and fulvic acid). These organic sources were studied for their physico-chemical properties and quality parameters along with their nutrient status to compare their quality and maturity for extraction of humic substances. Humic substances obtained from these different sources were studied for their content and characteristics. The potassium humate extracted from these organic sources were used in a pot culture study on green chilli, comprising eleven treatments and three replications. The different levels of potassium humate (200 to 600 ppm) were used as foliar application on transplanted chilli at 30 and 45 days after transplanting (DAT) along with recommended dose of fertilizers (GRDF) for studying its effects on yield and quality of green chilli.
Results: Among all the three organic sources, vermicompost was reported as the best organic source to extract humic substances from its physico-chemical properties viz. pH (6.9), EC (0.3 dS m-1), water soluble organic carbon (0.76 %) and C:N ratio (18.0), which are considered as quality and maturity parameters to obtain good quality humic substances. Nutrient status for macro and micronutrients were reported to be higher in vermicompost followed by FYM and least content in lignite. In the pot culture experiment, the foliar application of potassium humate extracted from vermicompost resulted in significant improvement in fresh and dry yield of chilli fruit and stalk as compared to potassium humate application extracted from FYM and lignite. Among the various concentrations used (200-600 ppm) for the foliar application of potassium humate, application @ 400 ppm extracted from vermicompost along with GRDF (T7) was reported as the best treatment resulting in significantly increase in the fresh and dry yield of chilli fruits and stalk. Further, it was noticed that the same treatment was observed to be effective in significant improvement of the ascorbic acid content as quality parameter in fresh green chilli fruits
Effect of Chitosan Coated Immobilized Algal Cells as Plant Growth Promoter in Vigna radiata L.
No full textThe present study is design to investigate effect of immobilized algal cells as a growth promoter for improving quality and quantity of Leguminosae plant such as mung bean (Vigna radiata). The experiment was conducted in plant growth chamber during month of January 2024. The experiment was performed in plastic glass using cocopeat. Immobilized beads were coated with Chitosan and followed by sun drying of that bead. The experiment consists of five treatments which was T0: Control, T1: With chitosan Chlorococcum beads, T2: Without chitosan Chlorococcum beads, T3: With chitosan Scenedesmus beads and T4: Without chitosan Scenedesmus beads. The result revealed that seeds treated with Chitosan treatment of algal beads (T1 and T3) it gives significant growth as compared to Control (T0). Shoot length and root length were significantly increased in treatments (T1 and T3) as compared to control. Carbon, Nitrogen and Phosphorous concentration were significantly increased in all treatment as compared to control whereas, Sulphur concentration was increased in control. Chlorophyll content was also, significantly increased in all treatment compared to control
Effect of Continuous Long-term Tea Cultivation in Water Quality index under Deep, Fine Loamy, Very Deep, Course Loamy and Very Deep, Fine Loamy Well Drained Soil
No full textFor this investigation, three different types of soil were chosen: very deep, coarse loamy, well-drained soil; deep, fine loamy, well-drained soil; and deep, coarse loamy, well-drained soil. Ten water samples were taken from the ring well, ponds, drains, and existing shallow tube wells (hand and mark tube wells) for each category of soil types. The minimal dada set, which include all variables, was chosen on the basis of the significant correlation discovered by correlation analysis. Very deep, coarse loamy, well-drained soil had the lowest water quality index (10.34), whereas very deep, fine loamy, well-drained soil had the highest (15.38)
Effect of Foliar Application of Chemicals on Shelf Life of Ber (Ziziphus mauritiana L.) cv. Apple Ber
No full textA field experiment was conducted out at Experimental orchard, Post-harvest Technology Laboratory of Department of Horticulture and laboratory of Department of Soil Science, CCS Haryana Agricultural University, Hisar during the year 2022-23. The experiment was laid out in a Randomized Block Design with thirteen treatments and three replications viz., T1: K2SO4 (1.0%), T2: K2SO4 (1.5%), T3: K2SO4 (2.0%), T4: K2SO4 (2.5%), T5: Ca(NO3)2 (0.5%), T6: Ca(NO3)2 (1.0%), T7: Ca(NO3)2 (1.5%), T8: Ca(NO3)2 (2.0%), T9: C2H6ClO3P@ 150 ppm , T10: C2H6ClO3P@ 300 ppm), T11: C2H6ClO3P@ 450 ppm T12: C2H6ClO3P@ 600 ppm T13: Control (water spray). The each treatments were applied two times i.e. first spray in the 3rd week of december and second spray at 10 days after first spray i.e. in the first week of january until total saturation of foliage of experimental plants. The control trees were sprayed with water. Among the shelf life parameters minimum spoilage % and minimum loss in PLW % was observed in case of calcium nitrate @ 2.0 % which further improve the shelf life of ber fruits
Design and Comparison of Vertical and Horizontal Hydroponic Systems for Coriander and Spinach Growth
No full textUnderstanding the differences in growth performance between these two systems will provide valuable insights for optimizing hydroponic farming practices, particularly in regions with harsh climates and limited water access, where sustainable and efficient food production is crucial for addressing future food security challenges. As the global population continues to grow and climate stress intensifies, indoor/vertical farming is to complement traditional agricultural practices by enhancing sustainable food production and ensuring high-quality produce. The study demonstrated that the horizontal hydroponic system was significantly more effective for growing coriander than the vertical system. In summary, the horizontal hydroponic system consistently outperformed the vertical system for both spinach and coriander, with particularly pronounced results for coriander. Since the shoot is the main economic part of both spinach and coriander, the vertical hydroponic system outperforms the horizontal system, offering significant advantages for economic production. These findings highlight the importance of using vertical hydroponic systems to achieve higher and more profitable yields of these crops
Screening Urban Tree Species for Air Quality Enhancement: A Review
No full textAir pollution poses a significant global challenge, particularly in urban areas, due to factors like industrialization, urbanization, increased vehicular traffic, and high energy consumption. In India, vehicle emissions, industrial activities, and power plants are major contributors to deteriorating air quality, with vehicles alone responsible for substantial carbon monoxide and hydrocarbon emissions. Unplanned urbanization and population growth further exacerbate pollution levels. Urban air pollution is linked to millions of deaths and respiratory illnesses annually, especially in developing countries. Vegetation plays a crucial role in mitigating air pollution by absorbing gaseous pollutants and particulate matter through leaves. Plants also act as bioindicators, displaying characteristic responses to specific pollutants. They employ mechanisms like leaf absorption, particulate deposition, and fallout on the leeward side to cleanse the atmosphere. Bio-monitoring with plants is a cost-effective method to assess environmental pollution impacts, highlighting the vital role of urban green spaces in improving air quality and public health. In summary, the screening of trees for pollution abatement is essential in urban planning. The APTI, coupled with assessing the dust-capturing capacity and emission reduction of trees, aids in categorizing them as sensitive indicators or effective pollution sinks
Micronutrient Formulations for Cocoa on the DTPA Extractable Micronutrient Status in Coconut Intercropping Systems
No full textCocoa is an inevitable intercrop of coconut plantations in southern states of India. Micronutrient deficiency in cocoa plantations is a potential yield depressing factor which warrants immediate attention. Ubiquitous deficiency of micronutrients is noticed to the tune of 17% of DTPA Fe, DTPA Mn in 7.5%, DTPA Zn in 71.2% and DTPA Cu in 32.5% in the cocoa growing locations. Hence micronutrient mixture was developed at Coconut Research Station, Aliyarnagar so as to elicit the impact of application of micronutrient mixture on DTPA extractable micronutrient status and on the productivity of cocoa. Experiments included testing various grades of micronutrient formulations applied in soil along with foliar spray. Results revealed that micronutrient mixture grade 3 resulted in higher available DTPA status by 10-35% compared to other formulations. However grade 3 showed higher status of DTPA extractable micronutrients and it showed statistical parlance with grade 4. Foliar application of micronutrients did not create noteworthy impact on soil fertility status
Plant Growth Promoting Rhizobacteria Bio Capsules: Enhancing Ginger Growth and Yield
No full textThe study aimed to assess the impact of plant growth promoting rhizobacteria capsules on the growth and yield of ginger. PGPRs known for their role in nitrogen fixation, phosphate solubilization, and hormone secretion. These PGPR’s tested at the Turmeric Research Station, Kammarpally across three consecutive years (2018-2021) in combination with three ginger varieties (Mahima, Maran, Local type) and five different treatments T1-POP + Trichoderma (Talc formulations) + GRB 35 (Talc formulations), T2- POP + Trichoderma capsules + GRB 35 capsule, T3- POP + Trichoderma capsules, T4- POP + GRB 35 capsule, T5- POP (Recommended package of practices). The treatment T4V1 (POP + GRB 35 capsule with Mahima variety), produced the highest fresh rhizome yield with 6.28 kg plot-1 and 21.53 t ha-1 followed by T4V2 (POP + GRB 35 capsule with Maran variety) at 6.16 kg plot-1 and 20.15 t ha-1. These results suggest that GRB 35 capsules significantly enhance ginger yield, offering a sustainable approach to ginger cultivation
Harnessing Nitrogen Use Efficiency for Enhancing Productivity in Rice: A Review
No full textNitrogen fertilizers have significantly enhanced rice yields over the past decades, but they also have substantial negative impacts on the environment. Excessive application of nutrients, particularly nitrogen, beyond crop requirements is linked to environmental losses. High nitrogen fertilizer input leads to low nitrogen use efficiency (NUE) due to the rapid loss of nitrogen through ammonia volatilization, denitrification, surface runoff, and leaching in the soil-flood water system. Enhancing the yield potential of rice- based cropping systems in response to the global call for carbon neutrality is a crucial research target. New approaches are needed to boost yields while maintaining or ideally reducing nitrogen application to maximize crop NUE. Improving NUE is crucial for addressing the intertwined challenges of environmental degradation, climate change, and food security. This review provides an in-depth exploration of strategies for improving nitrogen use efficiency, including soil health management, optimized fertilizer application, crop management practices, physiological and morphological approaches, exploiting symbiotic relationships, and genetic approaches, all aimed at enhancing rice productivity while addressing agricultural and environmental challenges caused by nitrogen losses, such as ammonia volatilization and leaching and promoting more sustainable farming practices. It also reduces the input costs, leading to a more sustainable agricultural economy and improved living standards for farming communities