TAILIEUCHUNG - Influence of balanced fertilization on productivity, nutrient use efficiency and profitability of rice in Inceptisol: A review

The decline in the rice crop responses to applied fertilizer nutrients, inter alia, could be ascribed to emerging nutrient deficiencies on account of modern era of agriculture and inadequate or imbalanced application of fertilizers. It has become increasingly recognized around the world that N, P and K fertilizers alone are not always sufficient to provide balanced nutrition for optimal rice yields and quality, therefore, application of secondary and micronutrient elements has to be made. Balanced application of NPK with Zn, Fe and Mn resulted in highest number of panicles, maximum panicle length and highest grain and straw yield. Das et al., (2015) recorded highest grain and straw yield with the application of S, B and Zn along with NPK. Application of fertilizers through SSNM . application of N:P:K:Zn:S:B (100:60:60:25:30:5) produced at par grain and straw yield with yield obtained with the application of 150% NPK (150:90:90). Application of 75 % of nitrogen through polymer coated urea (POCU) along with 100% P and K resulted in highest grain yield and harvest index. It is found that balanced application of NPK and Zn (100:60:60:5) resulted in higher Recovery efficiency of N, P & K. The highest Agronomic and recovery efficiency of NPK was recorded with the application of 50% RDF along with Nanomaterials of gypsum and rock phosphate. The highest N uptake and recovery efficiency in rice with the application of urea super granules @ 90 kg/ha. It can be concluded that the nutrient management through chemical fertilizers along with customised slow release fertilizer were the viable tools of improving FUE and synchronized crop demand. | Influence of balanced fertilization on productivity, nutrient use efficiency and profitability of rice in Inceptisol: A review

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