Productivity, economics and soil fertility of soybean - safflower cropping system in response to nutrient management practices

DOI: 10.18805/lr.v0iOF.11186    | Article Id: LR-3341 | Page : 572-577
Citation :- Productivity, economics and soil fertility of soybean - safflower croppingsystem in response to nutrient management practices .Legume Research-An International Journal.2016.(39):572-577

P. Padmavathi*, I.Y.L.N Murthy and M. Suresh1

padmavathi91164@gmail.com
Address :

Directorate of Oilseeds Research, Rajendranagar, Hyderabad-500 030, India.

Submitted Date : 21-04-2014
Accepted Date : 7-08-2014

Abstract

A field experiment was conducted to study the effect of nutrient management practices on the performance of soybean - safflower sequence in Vertisols. The safflower equivalent yield (2418 kg/ha-1); gross returns (Rs. 53196/ha-1); net returns (Rs 33734/ha-1) and B:C ratio (2.8) were significantly superior either with the application of NPK to the system + 5 t FYM/ha to safflower; or NPK to the system + soybean residues to safflower; or NPK to the system + both crop residues. Similar trend was also observed with respect to soil health indicators viz., soil respiration (108 mg C/g soil/10 days), microbial biomass C (284 mg C/g soil), microbial biomass N (41.9 mg N/g soil), mineral N (13.8 mg N/g soil) and net N mineralization (5.4 mg N/g soil/ 10 days). Significant improvement was observed in terms of PGPR and Trichoderma sp were found when NPK + crop residues were applied to the system.  

Keywords

Safflower Soil biological activity Soil microbial count Soybean System productivity.

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