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Evaluation of land management practices for nutrient budgeting and dynamics in soybean-based cropping systems in vertic inceptisols

OAR@ICRISAT

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Relation http://oar.icrisat.org/997/
 
Title Evaluation of land management practices for nutrient budgeting and dynamics in soybean-based cropping systems in vertic inceptisols
 
Creator Nagavallemma, K P
 
Subject Soil Science
 
Description Vertic lnceptisols wver over 60 million ha of landscape in central-peninsular India.
These soils are highly prone to land degradation due to their mineralogical-texhrral
composition, position on toposequences. and the prevalence of the practice of summer
(rainy cropping season) fallowing Of late, however, soybean cultivation has been adopted
on a wide-scale on these soils, but the yield of the crop are low. Productivity of the soybeanbased
land use systems on these soils need to be improved and sustained at higher levels by
a better management of natural resources in particular soil, nutrients and water. Soil erosion
also needs to be reduced by the introduction of improved land management practica.
Experiments were. therefore. conducted during the rainy and post-rainy seasons in 1997 and
1998, on an operational watershed scale. on a Vertic lnceptisol watershed [ Black soil
watershed BW7] at the ICRISAT center. Patancheru, near Hyderabad. India to study: (1)
The effect of two landform treatments, namely flat and broadbed and h m w (BBF) systems
and two soil depths namely shallow ( 6 0 cm) and medium-deep (>50 cm) on nutrient (N, P
and K) budgets of soybean-based cropping systems (soybeadpigeonpea and
soybean+chickpea); (2) Soil nitrogen and carbon dynamics. systems productivity and
Vesicular arbuscular mycorrhizal colonization in crops roots; (3) and Laboratoty
experiments were conducted [in a Vertic Inceptisol] to study the patterns of C and N release
from pigeonpea [Cqjmns cqjm (L.)] and Glyricid/awpit~mre sidues.
 
Date 2000
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/997/1/62766.pdf
Nagavallemma, K P (2000) Evaluation of land management practices for nutrient budgeting and dynamics in soybean-based cropping systems in vertic inceptisols. PhD thesis, Acharya N G Ranga Agricultural University.