Effect of Organic and Inorganic Fertilization influence on Infiltration Characteristics Under Vertisol

An ongoing field experiment was conducted at Long term fertilizer experiment, Raipur, tostudy the Effect of fertilization (both organic and inorganic) on soil Physical properties (infiltration rate) of Vertisol of ten treatments viz. The treatment combinations for were T1 (Control), T2(50%NPK), T 3(100%NPK), T4(150%NPK), T5(100%NPK +Zn), T6(100%NP), T7(100%N), T8 (100% NPK+FYM), T9(50% NPK+BGA) and T10 (50%NPK+GM). Farmyard manure and green manure is applied at the treatment of T8 (100%NPK+FYM) and T10 (50%NPK+ GM). Result showed that the highest infiltration rate recorded T8(100%NPK+FYM) and T10 (50%NPK+GM). In general among all the other treatments and control gave poorest infiltration rate. Incorporation of organic sources considerably improved the soil physical properties such as decrease in bulk density and increase in infiltration rate and available NPK status of the soil. Study showed that wherever, nitrogen was substituted through GM, FYM or crop residue (rice straw) in rice, Corresponding decrease in bulk density favourably enhanced the infiltration rate and it was found to be highest in the green-manured plot, FYM and lowest in control. Continuous monitoring of physical properties should be carried out for maintaining soil health and enhancing the crop production.