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Soil quality assessment using deviation method under different soil and management practices in rainfed vertisol.

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Title Soil quality assessment using deviation method under different soil and management practices in rainfed vertisol.
Soil quality assessment using deviation method under different soil and management practices in rainfed vertisol.
 
Creator ICAR_CRIDA
 
Subject Soil quality, deviation method, soil quality indicators, relative soil quality index, long-term, sorghum.
 
Description Not Available
T: To evaluate the long term influence of existing soil and nutrient management practices on soil quality
using Relative Soil Quality Index (RSQI) approach, two ongoing long term integrated nutrient management experiments
in medium black soil (Typic Chromustert) of Bijapur centre were adopted for the study. First experiment was initiated in
1984-85 under rabi sorghum-safflower crop rotation with T1: control, T2: Sorghum- 50 kg N: 25 kg P2
O5
: 0 kg K2
O ha1
recommended dose of fertilizer (RDF), Safflower- 37.5 kg N: 50 kg P2
O5 :15 kg K2
O ha-1 (RDF), T3: 50% N (FYM),
T4: 50 % N sunhemp and T5: 50% RDF + 15 kg ha-1 ZnSO4
as soil-nutrient management treatments. Second experiment
was initiated in 1998-99 under rabi sorghum with T1: Control, T2: 100% N urea; T3: 25 kg N (compost); T4: 15 kg N
(compost) + 20 kg N (inorganic), T5: 15 kg N (sunhemp) + 20 kg N (inorganic) and T6: 15 kg N (compost) + 10 kg N
(sunhemp) as management treatments. Soil samples collected from these two experiments during 2005 were processed
and analyzed for 16 soil quality indicators and Relative Soil Quality Index (RSQI) was computed. In the first set, the
order of treatments from the view point of RSQI was 50% RDF + 15 kg ha-1 ZnSO4
(1.00) > 50% N (FYM) (0.97) > 50
kg N: 25 kg P2
O5
: 0 kg K2
O ha-1 (RDF for Sorghum) - 37.5 kg N: 50 kg P2
O5 :15 kg K2
O ha-1 (RDF for Safflower) (0.84)
> 50 % N sunhemp (0.76). Application of 50% RDF + 15 kg ha-1 ZnSO4
to sorghum and safflower was found superior
most. In the second set, application of 15 kg N (compost) + 10 kg N (sunhemp) (RSQI 1.00) was found most promising.
Based on the RSQI, the general ranking was 15 kg N (compost) + 10 kg N (sunhemp) (1.00) > 15 kg N (compost) + 20
kg N (inorganic) (0.86) > 100% N urea (0.78) > 25 kg N compost (0.64) > 15 kg N (sunhemp) + 20 kg N (inorganic)
(0.62). The full paper deals with the method of soil quality assessment and computation in detail.
Not Available
 
Date 2020-02-25T04:54:45Z
2020-02-25T04:54:45Z
2007
 
Type Technical Report
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/32418
 
Language English
 
Relation Not Available;
 
Publisher , Srinivas, K.