Journal ID : AMA-27-06-2022-11497
[This article belongs to Volume - 53, Issue - 07]
Total View : 370

Title : Impact of long-term fertilizer and manure application on rice biological yield, nutrient uptake, nutrient use efficiency, yield attributing characters in tropical rice ecosystem

Abstract :

India is the second largest producer of rice in world after China. Rice-rice cropping system is followed in eastern parts of India due to heavy rainfall and low land conditions. Efficient nutrient management is much important in rice cultivation. But, after long-term intensive cultivation of rice with traditional methods and imbalanced fertilizer application imparted a less sustainable system for future generation. So, we examined the various nutrient management strategies under a long-term fertilizer experiment with 4 replications and 11 treatments. The results demonstrated integrated nutrient management of organic manure and chemical fertilizer is a key element for maintaining rice yield and to keep the soil processes alive. 225.51 % biological yield advantage under farmyard manure (FYM) treated plots, respectively). Among the treatments, sulphur and boron uptake were observed highest in respective application plots and farmyard manure application plots (50% higher than 100%NPK). Similarly, internal utilization efficiency, agronomic efficiency, physiological efficiency, and recovery efficiency were observed highest under FYM treated plots. Sulphur uptake was 75.42% higher under NPK+FYM+Lime compared to control and NPK plots. Boron uptake was higher in 100%NPK+B+Zn by 50% compared to 100% NPK plots. Organic manure application along with NPK improved yield attributing characters viz., the plants per hill, tillers per plant, grains per panicle, and plant vigour compared to sole application of NPK. NPK+FYM and NPK+FYM+Lime plots showed the most effective management strategy among the treatments.

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