Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Bangalore-560 065, India.
1Dept. of Soil Science and Agricultural Chemistry, ARS, Acharya NG Ranga Agricultural University, Anantapur, -515 001, AP.
Field experiment was conducted on non-calcareous, zinc deficient clay loam soil (Typic Ustopept) with rice (variety ADT-45) was the test crop to study the effect of zinc-enriched organic manures. The treatments were NPK alone, NPK +200 kg FYM without enrichment, NPK + 200 kg FYM enriched with different levels of Zn (1.25 kg, 2.50 kg and 5.0 kg Zn ha−1), NPK + cow dung without enrichment, NPK + 200 kg cow dung enriched with different levels of Zn. The result of the field experiment revealed that recommended dose of NPK +200 kg FYM enriched with 5.0 kg zinc increased the grain (5430 kg ha−1) and straw (7075 kg ha−1) yields which was due to increased availability of zinc in soil. Uptake of nitrogen, phosphorus, potassium and zinc were found uniform trend with the highest uptake in the plots receiving recommended fertilizers along with 200 kg of FYM or cow dung enriched with 2.5 kg or 5.0 kg Zn as compared to control.
Enriched organic manures, Zinc, Nutrient uptake, Rice
