Effect of Integrated Nutrient Management on Soil Properties and Productivity of Blackgram (Vigna mungo L.) in Typic Haplustepts
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Date
2024
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MPUAT, Udaipur
Abstract
A field experiment entitled "Effect of Integrated Nutrient Management on
Soil Properties and Productivity of Blackgram (Vigna mungo L.) in Typic
Haplustepts" was conducted at Instructional Farm, Rajasthan College of Agriculture,
Udaipur, which is located in Zone IVa (Semi-humid Southern Plain and Aravali Hills
Zone) during kharif 2023. Twelve integrated nutrient management treatments were
used in the experiment, with one common control being blackgram. The experiment
was set up in three replications using a randomized block design. The clay loam soil
at the testing site had a pH of 8.18, which is slightly alkaline. High in potassium
(362.17 kg ha-1), low in accessible nitrogen (265.32 kg ha-1), and medium in
phosphorus (19.50 kg ha-1). Application of 75% RDF + 25% through Vermicompost
(T6) was recorded maximum, number of pods plant, number of seeds pod, test weight,
seed (867 kg ha-1) yield, haulm (1615 kg ha-1) yield, biological (2481 kg ha-1) yield,
protein content in seed, nutrient content viz nitrogen, phosphorus, potassium content
in seed & haulm and their uptake by seed, haulm & total uptake by crop followed by
75% RDF + 25% Poultry manure (T11).
Maximum organic carbon, available macronutrients (nitrogen, phosphorus &
potassium), micronutrients (iron, zine, manganese and copper), microbial population
(fungi and actinomycetes population), dehydrogenase activity and alkaline phosphate
activity in soil after harvest of blackgram was observed under integrated nutrient
management by the application of 75% RDF + 25% through Vermicompost (T6)
while highest bacterial population was found in 75% RDF + Rhizobium + PSB (T9).
Highest net return (42572 ha-1) and B C (1.90) were found with application of 75%
RDF + 25% through Vermicompost (T6).
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Yadav S. and Meena S.C.