International Journal of Plant & Soil Science
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Effect of NPK Fertilizers, Farmyard Manure (FYM) and Bio-fertilizers on Quality Parameters of Onion (Allium cepa L.) Grown in Jaipur, Rajasthan
No full textThe current experiment was conducted in loamy sand soils of the Horticulture farm, Vivekanand Global University Jaipur, during Rabi season of 2020-21 and 2021-22. The experiment comprised of 32 treatment combinations replicated three times, was laid out in split-plot design (SPD) with four fertility levels of NPK (0, 50, 75 and 100% of recommended dose of NPK) and two levels of FYM (without FYM and with FYM @ 25 t ha-1 were added in main plots. Four bio-fertilizer levels (No inculcation N2 fixer Azotobacter, PSB inculcation and N2 fixer Azotobacter + PSB inoculation) were added in sub plots. The results of the study have clearly shown that application of chemical fertilizer up to 100% RDF increased all the quality attributes (pungency, chlorophyll content and TSS), NPK and S content and uptake and availability of N, P and K in soil after harvest the crop. With application of FYM @ 25 t ha-1 significantly improved all quality attributes (Allyl propyl disulphide, chlorophyll and TSS), N, P, K and S content and uptake and availability of N, P and S in soil after harvest the crops. Use of biofertilizers (N2 fixers and PSB) alone or in combination increased all the quality attributes (Allyl propyl disulphide, chlorophyll and TSS content), NPK and S content and uptake and availability of N, P and K in soil after harvest the crop
Effect of Sulphur and Zinc on Growth and Yield of Black Gram (Phaseolus mungo L.)
No full textA field experiment was conducted during Zaid (summer) season of 2023 at Crop Research Farm, Department of Agronomy. The treatments consisted of 3 levels of Sulphur (10, 20 and 30 kg/ha) and 3 levels of zinc (10kg/ha, 0.1% and 0.2% foliar application) and a control. The experiment was laid out in Randomized Block Design (RBD) with 10 treatment and replicated thrice. Application of Sulphur (30 kg/ha) + Zinc (10kg/ha) (treatment 9) recorded higher Plant height, higher plant dry weight, higher number of Pods/Plant, higher number of seeds/pod, higher test weight and higher seed yield. The (treatment 9) also recorded Maximum benefit cost ratio (2.41
Effect of Phosphorus Levels on Early Seedlings of Rice (Oryza sativa) under Varying Moisture Stress Conditions
No full textThis study investigated the impact of moisture levels and phosphorus applications on different rice varieties. It aimed to: 1. Identify optimal rice varieties for specific moisture and phosphorus combinations. 2. Understand how moisture stress affects seed germination speed and root and shoot development. 3. Analyze the influence of increased phosphorus on root growth, especially under moisture stress. 4. Evaluate if additional NPK application enhances the positive effects of phosphorus.
The meticulously controlled experiment, conducted within the International Rice Research Institute (IRRI)\u27s RGA facility from October to November 2023, utilized five rice varieties, three moisture levels (flooded, ideal, and Drought-like), and varying phosphorus levels.
The findings revealed a positive correlation between phosphorus levels and root length across all rice varieties. This emphasizes the crucial role of phosphorus in promoting root development under challenging conditions. Notably, while increased phosphorus significantly enhanced root adhesion under flooding and aided seedling recovery, drought remained a significant barrier to root growth, regardless of phosphorus application. Interestingly, despite general genetic uniformity in germination and root-shoot parameters among the varieties, a clear positive correlation between phosphorus levels and root length was still observed.
In conclusion, this study highlights the importance of phosphorus in strengthening root grip during floods, thereby aiding seedling recovery. However, it also emphasizes that drought remains a dominant factor hindering plant growth. The consistency observed across different rice varieties strengthens the findings, and the significant increase in root length with increased phosphorus application underscores its vital role in root development under challenging conditions. This study provides valuable insights for optimizing rice growth strategies by considering specific rice varieties, moisture levels, and phosphorus applications
Effect of Storage Conditions on the Physicochemical and Processing Qualities of Different Potato Genotypes Grown in Eastern Uganda
No full textThe favourable environment in Eastern Uganda enables the growth of potato (Solanum tuberosum). However, it’s limited by lack of improved genotypes and inappropriate storage facilities. To address this, new potato genotypes including four CIP clones and four varieties from other regions were introduced by development partners. They also constructed ambient storage structures in Kapchorwa Municipality (1,800 m), Bennet (2,300 m), and Mbale City (1,200 m). This study was therefore designed to investigate the effectiveness of the ambient stores in maintaining the quality of the potato genotypes. During the study, the mean storage temperature ranged from 15.42oC in Bennet to 22.80oC in Mbale while the mean relative humidity ranged from 84.73% in Bennet to 79.58% in Mbale. The results showed significant (P< 0.05) differences due to variety. Storage duration and conditions led to a significant (P< 0.05) decline in the desired physiochemical characteristics and processing qualities of the stored potato genotypes. Potato genotype Victoria had the highest level of reducing sugars (0.08%) and least acceptable chip colour while Rwangume had the lowest reducing sugars (0.05%) and a more acceptable chip colour. In general, altitude and potato genotype influenced changes in the physicochemical and processing qualities of the potato genotypes during storage
Phytosociological Studies of the Flora of Dhanamanjuri University Campus in Imphal West District (Manipur), India
No full textAims: To study the life forms and biological spectrum of the vegetation of Dhanamanjuri University Campus, Manipur to determine its phytoclimate and species diversity.
Study Design: The vegetation of the whole university campus was studied and the site selection was made randomly.
Place and Duration of Study: Dhanamanjuri University Campus is located at the intersection of 24.82ºN Latitude and 93.94ºE Longitude. The study was carried out from March to September, 2023.
Methodology: Life forms were determined in the study area after detailed floristic studies. Vegetation classification on a physiognomic basis as per Raunkiaer’s system as modified by Ellenberg and Mueller-Dombois. Frequency, density, abundance and basal area were calculated for quantitative analysis. Both Shannon- Weiner Index and Simpson index were calculated for diversity studies. The degree of association between two randomly selected species was studied with a simple index of association IASM.
Results: The biological spectrum of Dhanamanjuri University Campus consists of 183 plant species belonging to 163 genera distributed over 74 families. Due to predominance of Phanerophytes (54.1%) and Therophytes (22.4 %) over the other life-forms, the study site was assigned to the “Phanero-Therophytic” Phytoclimate. The values of the Shannon- Weiner Index and Simpson Index were found to be 1.5202 and 3.101 respectively. For the degree of association between two randomly selected species χ2 value was calculated to be 0.101 inferring that the two species are not associated with each other, rather they are independently distributed in the site.
Conclusion: The current study has described the vegetation of the Dhanamanjuri University Campus, as per Raunkiaer’s terminology as “Phanero-Therophytic” phytoclimate. The study also shed light on various phytosociological attributes of plants growing on the campus, thus shedding more light on the diversity and distribution patterns of the plants growing there
Impact of Various Levels of Nitrogen, Potassium, Phosphorus and Biochar on Soil Physico-chemical Properties and Yield of Black gram (Vigna mungo L.) Var: Shekhar-2
No full textAt the “Central Research Farm, Soil Science and Agricultural Chemistry Department, SHUATS, Prayagraj”, an experiment titled "Impact of various levels of Nitrogen, Potassium, Phosphorus and Biochar on Soil Physico-chemical Properties and Yield of Black gram(Vigna mungo L.)Var: Shekhar-2" was carried out during the Zaid season of 2023–2024. A randomized block design was used, consisting of three variables and three levels of NPK (at 0, 50, and 100% ha-1) and biochar (at 0, 50, and 100% ha-1). An excavated soil specimen from the experimental site prior to the start of study activities showed that the soil had a sandy loam texture, a neutral to alkaline reaction, and significantly higher treatment levels
Effect of Potting Mixture and Polybag Size on Growth and Flowering of Asiatic Lily (Lilium asiaticum var. Nashville) under Protected Condition
No full textAn experiment on recognizing the significance of cultivating lilies under polyhouse conditions, this study contributes the valuable insights to the cultivation practices of Asiatic lilies, focusing on the pivotal roles of potting mixture composition and polybag size. Healthy bulbs of each cultivar were freshly planted in various media compositions in different polybag size within a protected environment. From the present investigation, it is concluded that the treatment 12 x 12 polybag size combined with Garden soil + Vermicompost + Cocopeat (1:1:2) was found in superior among other treatments in terms of plant height (69.30cm), leaf length (8.60 cm), leaf width (3.03 cm), number of flower buds/plant (4.60), days to appearance of first flower bud (40.10), flower bud length (8.43 cm), stalk length (68.15 cm), weight of bulb per plant (64.75g), self life of flower spike (15.22 days), number of flowers per 250 m2 (10032.75). The study concluded that, the lilies readily respond to various medium for cultivation and 12 x 12 Polybag combined with potting mixture Garden soil + Vermicompost + Cocopeat (1:1:2) observed to be the best for plant growth and flowering of Asiatic lily under protected condition
Efficacy of Certain Chemicals and Botanicals against Shoot and Fruit Borer, Leucinodes orbonalis (Guenee) on Brinjal (Solanum melongena L.)
No full textThe field trial was conducted at Central research farm , SHUATS, Prayagraj, U.P during Kharif season 2023 in randomized block design (RBD) with three replications consisting of eight treatment viz, Neem oil 2%, Chlorantraniliprole 18.5% SC , Spinosad 45%SC, Flubendiamide 480 SC, Indoxacarb 14.5% SC, Pangomia + Flubendiamide, Neem oil + Flubendiamide, and untreated Control, The result revealed that all insecticidal treatments were significantly superior to reduce the incidence of shoot and fruit damage of brinjal compared to untreated control. The plot treated with Chlorantraniliprole 18.5% SC recorded the lowest % of shoot and fruit damage 4.03% and 3.20 % in first and second sprays, respectively followed by spinosad 45% SC (4.43% and 4.15% respectively). The yield ranged from 85 to 225.50 q/ha in all treatments. The highest yield was recorded in Chlorantraniliprole 18.5 % SC (225q/ha) followed by spinosad 45% SC (190q/ha), Flubendiamide 480 SC (17.50q/ha), Indoxacarb 14.5 SC (160.35q/ha), Pangomia + Flubendiamide (140.33q/ha), Neem oil + Flubendiamide (132.40q/ha) and Neem oil 2% (120.50q/ha) as compared to control (85.00q/ha). When cost benefit worked out the best and most economical treatment was Chlorantraniliprole 18.5% SC (1:10.3) followed by Spinosad 45% SC (1:8.5), Flubendiamide 480 SC (1:7.5), Indoxacarb14.5 SC (1:7.4), Pangomia + Flubendiamide (1:6.0), Neem oil + Flubendiamide (1:5.5) and Neem oil 2% (1:5.4) as compared to control (1:4.2)
Potential of Foliar Applied Nano Fertilizer in Improving the Growth, Yield and Quality of Gobhi Sarson (Brassica napus)
No full textA field experiment was conducted in the Research farm of the School of Agriculture, Lovely Professional University, Punjab to find out the potential of foliar-applied nano fertilizer in improving the growth, yield and quality of Gobhi sarson (Brassica napus). The experiment was laid out in Randomized Block Design (RBD) with four replications. The experiment consisted of five treatments viz. T1: Control, T2: 50% RDF + Nano NPK (19:19:19) @ 0.2% as foliar spray at 30 DAS, T3: 75% RDF + Nano NPK (19:19:19) @ 0.2% as foliar spray at 30 DAS, T4: 100% RDF + Nano NPK (19:19:19) @ 0.2% as foliar spray at 30 DAS and T5: 125% RDF + Nano NPK (19:19:19) @ 0.2% as foliar spray at 30 DAS. The application of 100% RDF + Nano NPK (19:19:19) @ 0.2% as a foliar spray at 30 DAS (T4) recorded the highest plant height (184.75 cm), seed yield (22.80 q ha-1) and stover yield (49 q ha-1). More oil (43.32%) and protein (31.73%) content were also recorded in T4 as compared to other treatments. The overall results showed that foliar application of nano fertilizer in combination with conventional fertilizer significantly improved the growth, yield and quality of Gobhi sarson (Brassica napus)
Effect of Foliar Nutrition and Vine Top Harvesting in Sweet Potato (Ipomoea batatas (L.) Lam.) for Growth, Vine Top and Tuber Yield
No full textA field experiment was conducted at Farming Systems Research Station, Sadanandapuram, Kerala Agricultural University, Kerala, India during rabi 2022 with 12 treatments replicated thrice in randomised block design. Treatments included 2 factors, factor A having foliar nutrition (urea 2 %, multi-micronutrient mixture 0.5%, combination of urea 2% + micronutrient mixture 0.5%, and control). Factor B vine harvesting time (30, 45 DAP and control). The results showed that foliar application of 2% urea followed by 0.5 % multi micronutrient mixture registered significant highest growth attributes (vine length, number of branches, dry matter production), yield attributes, tuber and vine top yield. In case of time of vine top harvesting indicated that vine top harvest at 45 DAP gave the higher tuber and vine top yield and it was on par with vine harvesting time at 30 DAP. No leaf harvesting recorded the lowest tuber yield