Comparative study of organic and inorganic sources of nitrogen application in wheat (Triticum aestivum)
Loading...
Date
2005
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CCSHAU
Abstract
A field experiment was conducted during winter
season of 2003-04 on a sandy loam soils, low in available
nitrogen, medium in available phosphorus and higher in available
potassium at Student’s Farm, CCS Haryana Agricultural
University, Hisar. The experiment consisting of of four treatments
viz. recommended dose of nitrogen through inorganic source,
recommended dose of nitrogen through organic source, 75% of
recommended dose of nitrogen through inorganic source + 25% of
recommended dose of nitrogen through organic source +
bio-fertilizer and inorganic source based on soil test value was
laid out in randomized block design with four replications.
Growth parameters such as plant height, number of
tillers per meter row length, total dry matter accumulation per
meter row length, CGR and RGR were significantly higher in
recommended dose of nitrogen through inorganic source and
inorganic source based on soil test value over other treatments.
Yield attributes viz., length and number of grains per spike and 1000-grain weight were increased significantly by recommended
dose of nitrogen through inorganic source which were at par with
inorganic source based on soil test value. Grain, straw and
biological yields and nutrient (NPK) uptake was maximum in case
of application of recommended dose of nitrogen through inorganic
source. The physical properties of soil viz. moisture content,
infiltration rate, hydraullic conductivity were found to be
maximum in case of recommended dose of nitrogen through
organic source. Application of 75% of recommended dose of
nitrogen through organic source + 25% of recommended dose of
nitrogen through organic source + bio-fertilizer improved available
N and P content in soils as compared to other treatments. The
quality parameters such as protein content and sedimentation
value were also found to be maximum in case of recommended
dose of nitrogen through inorganic source. Highest gross returns
were obtained with recommended dose of nitrogen through
inorganic source followed by inorganic source based on soil test
value.