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- Title
IMPACT OF INTEGRATED USE OF FERTILIZER AND ENRICHED COMPOST ON YIELD, NITROGEN UPTAKE BY WHEAT AND FRACTIONS OF SOIL NITROGEN IN SEMI ARID CONDITION.
- Authors
Singhal, S. K.; Singh, R. D.; Sharma, V. K.; Sharma, S. K.
- Abstract
A field experiment was conducted with integrated nutrient management on wheat at IARI research farm New Delhi. Grain yield of wheat with 50% NPK fertilizer + NPK enriched compost was significantly higher than that of 100% NPK fertilizer, it was at par with 50% NPK fertilizer + NP enriched compost. The treatment 50% NPK fertilizer along with NPK enriched compost recorded maximum N uptake (105.0 kg ha-1). Application of fertilizer alone or in combination with compost led to a significant increase in total N, hydrolysable N (amino sugar-N, amino acid-N and hydrolysable NH3-N) and nonhydroiysable-N in soil as compared to initial status. The correlation studies revealed that amino sugar-N, amino acid-N and hydrolysable NH3-N fractions in soil were better indices of soil-N mineralization. A better correlation was observed between amino sugar-N with grain yield /N uptake by wheat.
- Subjects
FERTILIZER application; COMPOSTING; NITROGEN; AMINO acids; GRAIN
- Publication
Indian Journal of Agricultural Research, 2012, Vol 46, Issue 3, p262
- ISSN
0367-8245
- Publication type
Article