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Role of soil physical properties in soil health management and crop productivity in rainfed systems-I: Soil physical constraints and scope

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Title Role of soil physical properties in soil health management and crop productivity in rainfed systems-I: Soil physical constraints and scope
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Creator A. K. Indoria*, K. L. Sharma, K. Sammi Reddy and Ch. Srinivasa Rao
 
Subject Rainfed agriculture, soil physical properties, soil physical constraints.
 
Description Not Available
Soil physical degradation has become a serious problem
in both rainfed and irrigated areas of India. According
to an estimate, about 90 m ha area is experiencing
soil physical constraint in the country. In rainfed
regions, among several other constraints related to
crop and climate, soil physical constraints are the key
which severely limit crop productivity. The predominant
soil constraints which are governed by the principles
of soil physics include subsurface hard pan and
compactness, crusting and hardening, slow and high
permeability, non-optimal porosity, poor soil structure,
poor water receptivity, retention and transmission,
etc. It is now well-established that unless the soil
physical environment is maintained at its optimum
level, the genetic yield potential of a crop cannot be
realized even when all the other requirements are fulfiled.
The optimum soil physical environment creates
a suitable condition for better crop production both in
irrigated and rainfed regions. Rainfed agriculture, often
referred to as dryland agriculture, is practiced in
areas that are relatively warmer (arid, semi-arid) and
dry sub-humid regions of the country. These regions
are highly diverse, ranging from resource-rich areas
with good agricultural potential to resource-constrained
areas with a much more restricted potential. These regions
represent a wide variety of soil types, agroclimatic
and rainfall conditions. This article discusses
the soil physical constraints in rainfed regions of India
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Date 2018-09-15T05:13:27Z
2018-09-15T05:13:27Z
2017-06-25
 
Type Other
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/6843
 
Language English
 
Relation Not Available;
 
Publisher Not Available