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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
 
Creator RAMACHANDRAN, S
 
Contributor NAGENDER RAO, C
 
Subject DYNAMICS, SOIL, PROPERTIES, INFLUENCED, TILLAGE, MANAGEMENT, RABI, GROUNDNUT, RICE, GROUNDNUT, SYSTEM
 
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.
 
Date 2016-08-17T13:37:10Z
2016-08-17T13:37:10Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/72746
 
Language en
 
Relation D7878;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD