Effect of FYM, Zn and Fe fertilizer on Physio-chemical properties of soil under Pearlmillet in hyper arid region of Rajasthan

Abstract

A two years field experiment was conducted at two experimental sites of loamy sand soil. During Kharif, 2019 experiment was conducted at Agricultural Research Farm and during Kharif, 2020 conducted at Instructional farm, COA, SKRAU, Bikaner. To evaluate the influence of application of FYM, Zn and Fe fertilizer on physio-chemical properties of soil after harvest of pearl millet (RHB-177). Treatments consisted of three levels of FYM (Control, FYM @ 5 t ha-1 and 10 t ha-1 FYM) and ten methods and levels of Zn and Fe application (Control, soil application of (25 kg ha-1 FeSO4, 25 kg ha-1 ZnSO4, 25 kg ha-1 ZnSO4 + ZSB, 25 kg ha-1 FeSO4 + 25 kg ha-1 ZnSO4 + ZSB) and foliar application of (0.5% FeSO4, 1.0% FeSO4, 0.5% ZnSO4, 0.5% FeSO4 + 0.5% ZnSO4, 0.5% FeSO4 + 0.5% ZnSO4) in split plot design with three replications. The results revealed that organic carbon, dehydrogenase activity, bacterial, fungal and actinomycetes count, available nitrogen, phosphorus, potassium and sulphur in soil after harvest of pearl millet was significantly increased, while saturated hydraulic conductivity was significantly decreased with increasing levels of FYM up to @ 10 t ha-1 over control and 5 t FYM ha-1. And application of different methods and levels of Zn and Fe manifested significantly positive impact on available sulphur, whereas available phosphorus was significantly decreased as compare to control.