Effect of organic mulches and foliar spray of kaolin on NPK uptake in enhancing yield and economics of dry land maize (Zea mays L.)

The hot and semi-arid region is prone to meteorological droughts; the lack of rain frequently accompanied by temperatures, strong winds, low humidity, which has impact limiting nutrient uptake agricultural yields. To overcome this problem a field study conducted during June, 2020 kharif season at farmers field, Chinna Dudyala village, Muddanur, Kadapa district, Andhra Pradesh aimed determine effect organic mulches foliar spray kaolin on NPK in enhancing yield economics dry land maize (Zea mays). One most important techniques for preserving soil moisture was mulching, also reduces evapotranspiration when anti-transpirants are used. experiment comprised nine treatments (T1 T9) with four types viz., Paddy straw, Ground-nut haulm, Coir-pith, Sugarcane trash, intervals 40 DAS, 20 & DAS practice minimize water stress improve plant. Among application treatments, coir-pith mulch + @ 3.0% (T6) had significant N (187.15 kg ha-1), P (69.60 ha-1) K (156.22 enhanced grain (6976 stover (10980 highest gross returns (138034 ₹. BCR (2.63) superior all other treatments. present would help effectively utilise available resources, enhance growth productivity crop make economically viable regions.