DYNAMICS OF SOIL PROPERTIES AS INFLUENCED BY TILLAGE MANAGEMENT IN RABI GROUNDNUT IN RICE-GROUNDNUT SYSTEM
KrishiKosh
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Title |
DYNAMICS OF SOIL PROPERTIES AS INFLUENCED BY TILLAGE MANAGEMENT IN RABI GROUNDNUT IN RICE-GROUNDNUT SYSTEM
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Creator |
RAMACHANDRAN, S
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Contributor |
NAGENDER RAO, C
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Subject |
DYNAMICS, SOIL, PROPERTIES, INFLUENCED, TILLAGE, MANAGEMENT, RABI, GROUNDNUT, RICE, GROUNDNUT, SYSTEM
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Description |
A field experiment was conducted during rabi season of 2005-2006 in sandy clay loam soil at Agricultural College Farm, Rajendranagar, Hyderabad to study the dynamics of soil properties as influenced by tillage management in rabi groundnut in rice-groundnut system. The experiment was laid out with a split plot design consisting three planting methods for kharif rice viz., P1 : Direct seeding of rice (no puddling), P2 : transplanting of rice after puddling and P3 : In situ green manuring and transplanting of rice after puddling as main plots and three tillage treatments for rabi groundnut viz., T1 : Ploughing once (M.B. plough) + harrowing twice, T2 : ploughing twice (M.B. Plough) + harrowing thrice and T3 : ploughing twice (M.B. Plough) + rotavator twice at sub plots, constituting nine treatment combinations with three replications. Groundnut variety, K-134 was used as a test crop with a spacing of 22.5 cm x 10 cm. The study was taken up after harvest of kharif rice grown during kharif, 2005-06. The effects of planting and tillage methods on physical and chemical characters of soil were significant while physico-chemical properties were not significantly affected. Planting method, direct seeding of rice without puddling (P1) recorded higher clods of size < 20 mm with lower MWD, lower bulk density and penetration resistance and higher porosity, hydraulic conductivity and infiltration rate which in turn increased seedling emergence (81.1 %), plant height (29.29 cm), dry matter production, nutrient uptake, number of pods per plant and test weight (28.63 g), leading to higher pod yield (2262.2 kg ha-1) of groundnut. Among tillage methods, tillage with M.B. Plough twice + rotavator twice (T3) recorded higher clods of size < 20 mm, lower bulk density and penetration resistance and higher porosity, hydraulic conductivity and infiltration rate which inturn increased seedling emergence (91.0 %), plant height (39.8 cm), dry matter production, nutrient uptake and test weight (29.06 g), leading to higher pod yield (2173.4 kg ha-1) of groundnut. Interaction effects of planting and tillage methods had significant influence on soil physical and chemical properties, growth, nutrient uptake, yield attributes and pod yield of groundnut. Planting method, P1 (Direct seeding of rice without puddling) in combination with T3 (M. B. Plough twice + Rotavator twice) provided better soil physical environment, which helped in increasing seedling emergence (93.0 %), number of pods per plant and test weight (31.12 g) leading to higher pod yield (2361.7 kg ha-1) of groundnut. Based on the results, it was concluded that direct seeding of rice in combination with seed bed preparation with M.B. Plough twice + Rotavator twice (P1T3) was a better practice for augmenting the yields of groundnut grown on a sandy clay loam soil in rice- based cropping system. |
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Date |
2016-08-17T13:37:10Z
2016-08-17T13:37:10Z 2006 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/72746
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Language |
en
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Relation |
D7878;
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Format |
application/pdf
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Publisher |
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD
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