Effect of Manure and Fertilizer on Chemical Fraction and Uptake of Micronutrient in Rice Under Rice-wheat System

Abstract

A field experiment was conducted to assess the effect of manure and fertilizer application on the micronutrient transformation of rice at the Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (U.P.), during kharif season of 2022. The eleven treatments consistency application of micronutrients viz., Control, Recommended NPK (120:60:40), FYM @ 5 t ha-1 + Recommended NPK, FYM @ 10 t ha-1 + 75% Recommended NPK, FYM @ 15 t ha-1 + 50% Recommended NPK, Recommended NPK + Bio-stimulant - G @ 25 kg ha-1, Recommended NPK + Bio-stimulant - L @ 625 ml ha-1 foliar spray at 20 to 40 DAT, FYM @ 5 t ha-1 + Recommended NPK + Bio-stimulant - G 25 kg ha-1, FYM @ 5 t ha-1 + NPK - G 200 kg ha-1 + NPK-Bio fertilizer at 20 - 40 DAT, FYM @ 5 t ha-1 + NPK- G 200 kg ha-1 + Bio-stimulant -G 25 kg ha-1 at 20 - 40 DAT and FYM @ 5 t ha-1 + NPK 200 kg ha-1 + NPK - biofertilizer + Bio- stimulant - L @ 625 ml ha-1 foliar spray at 20 - 40 DAT were tested in RBD with three replications. Pusa Basmati - 1 was grown as a test variety. The findings showed that, in comparison to the control during the experimentation year, the combined application of Zn, Cu, and Fe along with NPK had considerable influence on the growth, yield qualities, and yields of rice. Significant improvement in growth parameters viz. plant height, number of tillers, effective tillers and dry matter accumulation in the application of FYM @ 5 t ha-1 + Recommended NPK + Bio-stimulant - G 25 kg ha-1, which established its superiority over the rest of the micronutrient treatments. The total nitrogen, phosphorus, potassium, zinc, copper and iron uptake by rice crop was also highest (57.3, 18.5, 16.8 kg ha-1, 157.3, 32.4 and 548.7 g ha-1), respectively with the application of FYM @ 5 t ha-1 + Recommended NPK + Bio-stimulant - G 25 kg ha-1 and 61.4 and 34.6 percent increase in grains and straw yield of rice was recorded. Applying FYM @ 5 t ha-1 + Recommended NPK + Bio-stimulant - G 25 kg ha-1 resulted in a higher protein yield (329.7 kg ha-1). Thus, applying FYM @ 5 t ha-1 + Recommended NPK + Bio-stimulant - G 25 kg ha-1 was found better for the sustainability of rice crop yield. The study revealed that applying FYM @ 5 t ha-1 + Recommended NPK + Bio-stimulant - G 25 kg ha-1 in rice crop is advantageous for obtaining higher yield, nutrient uptake and available nutrient in soil after harvest was comparable to the rest of the treatments.