National Agricultural Research Project (Plain Zone), Ganeshkhind, Pune, Maharashtra, 411007
*Corresponding author: (E-mail: pbjagtap1964@yahoo.co.in)
1Department of Agricultural Chemistry and Soil Science, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra
The periodical release of nutrients in saline-sodic soil under integrated nutrient management was studied in incubation studies at ambient conditions in the laboratory. The soil used for incubation was Sawargaon soil series (Vertic Ustropepts). The conjoint use of FeSO4, ZnSO4, FYM and Thiobacillus ferrooxidans significantly increased the DTPA-Zn and DTPA-Fe in the saline-sodic soil. The application of micronutrient fertilizers had pronounced effect on release of ammoniacal, nitrate nitrogen and available phosphorus in the soil. The effect was more remarkable when these micronutrients were applied alongwith the FYM.
DTPA Zn, DTPA Fe, ammoniacal and nitrate nitrogen, phosphorus
