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VOL. 6, ISSUE 6 (2021)
Response of integrated nitrogen management on the growth, yield and nutrients uptake of rice grown in different textured soils
Authors
Manivannan R, M V Sriramachandarsekharan, P Senthilvalavan
Abstract
Balanced use of nutrients through organic sources like poultry manure, vermicompost with nitrogenous fertilizers are prerequisite to sustain soil fertility to produce maximum crop yield. It also increases soil biodiversity and reduces environmental risks associated with synthetic fertilizer. With this background the present investigation were carried out in clay loam (Kalathur series- Typic Haplusterts) and sandy clay loam (Padugai series- Typic Ustifluvents) in farmer’s holding to study the effect of organics on growth, yield and nutrients uptake in rice. The treatments consisted of T1 – Absolute control, T2- Composted coir pith (100% N), T3 (green manure (100%N), T4- Sugarcane trash compost (STC-100%N), T5-vermicompost (100%N), T6-Poultry manure (100%N), T7-FYM (100%N). The results revealed that application of organics were significantly influenced the growth parameters, yield and nutrients uptake over control in rice. Application of vermicompost (50% N) + mineral nitrogen (50% N) recorded highest plant height (97.5, 99.3cm), no. of tillers/hill (14.1, 13.9), LAI (4.78, 4.67), chlorophyll content (2.99, 2.98 mg 100g-1) in clay loam and sandy clay loam respectively. The highest grain (5332, 5050 kg ha-1) and straw yield (7725, 6398 kg ha-1) with application of vermicompost (50% N) + mineral nitrogen (50% N) in clay loam and sandy clay loam respectively. Among the organics alone, the highest grain (5078, 4615 kg ha-1) and straw yield (6746, 5847 kg ha-1) were recorded in vermicompost (100%N) followed by poultry manure (100% N) in both soils. Application of vermicompost (50% N) + mineral nitrogen (50% N) recorded the highest nutrients uptake viz., N (50.4, 43.7 kg ha-1), P (14.7, 10.7 kg ha-1, K(40, 59.8 kg ha-1) in clay loam and sandy clay loam respectively. Among the organics alone, the highest nutrients uptake viz., N (34.5, 28.2 kg ha-1), P (7. 94, 7.83 kg ha-1, K(27.8, 30.2 kg ha-1)were recorded in vermicompost (100% N) followed by poultry manure (100% N) in both soils. To conclude, the efficient utilization of organic wastes which resulted in vermicompost improved the plant and soil health.
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Pages:1297-1300
How to cite this article:
Manivannan R, M V Sriramachandarsekharan, P Senthilvalavan "Response of integrated nitrogen management on the growth, yield and nutrients uptake of rice grown in different textured soils ". International Journal of Botany Studies, Vol 6, Issue 6, 2021, Pages 1297-1300
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