Influence of long-term integrated nutrient management on soil physical properties in pearl millet-wheat cropping system
Loading...
Date
2012
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CCSHAU
Abstract
A field experiment entitled “Influence of long-term integrated nutrient management on soil
physical properties in pearl millet-wheat cropping system” was conducted during the year 2010-11 at
Agronomy Research Farm of CCS Haryana Agricultural University, Hisar (India). The experiment
consisting of five treatments was laid out in randomized block design with four replications. Long-term
application of fertilizers along with organic materials viz. farmyard manure (FYM), wheat straw (WS)
and green manure (GM) after 26 cycles of pearl millet -wheat cropping system significantly improved
the soil organic carbon (SOC) content by 34% at 0-15 cm depth. Among the organic materials, FYM
increased the SOC content to highest level. The application of FYM, WS and GM decreased bulk
density and increased saturated hydraulic conductivity of soil up to 30 cm depth. Soil organic carbon
and saturated hydraulic conductivity decreased with increasing soil depth. Integrated application of
fertilizers with FYM, WS and GM increased infiltration rate by 61.2, 17.5 and 20%, respectively over
the treatment having fertilizers alone and enhanced the soil aggregates at all the depths. The FYM
resulted in highest mean water stable aggregates (50.88%). Penetration resistance of soil decreased
significantly with integrated use of FYM, WS and GM. Soil moisture retention increased with
integrated use of organic materials and fertilizers. The soil pH and soluble salt content did not affect
upon application of treatments. The combined use of fertilizers and FYM resulted into highest available
N (220.5 kg ha-1), P (21.0 kg ha-1) and K (333.8 kg ha-1) amongst all the treatments and organic
material treatments followed the order of FYM>GM>WS. Application of fertilizers alone and
integrated use of FYM along fertilizers resulted in higher yield of pearl millet and wheat. Amongst all
the treatments, FYM produced highest grain and straw yield (5452 kg ha-1 and 6586 kg ha-1) of wheat.
Application of FYM along with fertilizers improved the N P K concentration and uptake in grain and
stover of pearl millet. Application of FYM along with fertilizers also resulted into highest N, P and K
concentration and uptake in grain and straw of wheat. Among the organic materials, application of WS
resulted into lowest yield, concentration and uptake of NPK in grain and stover of pearl millet and
grain and straw of wheat.
Description
Keywords
Fertilizers, Farmyard manure, Organic fertilizers, Crops, Nutrients, Grain, Crop residues, Wheats, Yields, Concentrates