Impact of Different Methods of Nano Fertilizers Application on Soil Chemical Properties and Fertility Status in Sunflower Growing Soils

摘要

Sunflower is an important oilseed crop, which is grown in different agro climatic zones of India. Nutrient management plays an important role in increasing seed yield and maintaining soil fertility status. In this view a field experiment was conductedat Zonal Agricultural Research Station, GKVK, Bengaluru during 2019 and 2020 to study the impact of different methods of nano fertilizers application on soil chemical properties and fertility status of soil. The experiment was laid out using RCBD with factorial concept with three replications. Pooled analysis indicated that, among different treatment combinations, the treatment seed priming with nano boron 1500 ppm (GsP) + foliar application of nano sulphur 600 ppm + nano boron 1500 ppm (GsP) recordedsignificantly higher seed yield (3588 kg ha~(-1)), However soil chemical properties (after harvest of the crop) namely pH, EC, soil organic carbon, organic matter and soil available nutrient status namely available N, P_2O_5, K,O, S, B and Zn were foundnon significant with respect to different levels of seed priming and foliar application of nano fertilizers.