EFFECT OF NUTRIENT MANAGEMENT ON GROWTH, YIELD AND QUALITY PARAMETERS OF BLACK RICEAnny Mrudhula, K., Krishna Veni, B., Suneetha, Y., Sunil Kumar, M. and Naik, B.S.S.S.Abstract Black rice is getting more popular recently and is consumed as functional food due to health consciousness. Black rice contains higher levels of proteins, essential amino acids like lysine, tryptophan, vitamins such as vitamin B1, B2, folic acid and minerals including iron, zinc, calcium, phosphorus and selenium. Estimating crop nutrient requirements is essential for informing decisions of optimal nutrient management by maintaining quality. However, the nutrient requirements often vary depending on climates and soil conditions. Nitrogen, phosphorus, and potassium are important macronutrients for plant growth and development. In this context a field experiment was conducted at Agricultural Research Station, ANGRAU, Bapatla. This experiment was conducted in randomized block design with 10 treatments which were replicated thrice. The treatments were; different levels of nitrogen, phosphorus and potassium i.e., 80:60:40 kg NPKha-1, 120:60:40 kg NPKha-1, 120:40:40 kg NPKha-1, 120:40:30 kg NPKha-1, 160:60:40 kg NPKha-1, 160:40:40 kg NPKha-1, 160:40:30 kg NPKha-1, 200:60:40 kg NPKha-1, 200:40:40 kg NPKha-1 and 200:40:30 kg NPKha-1. The results revealed that the application 160:60:40 kg NPK per ha treatment recorded significantly higher yield attributes like no. of productive tillers per plant, panicle length, filled grains per panicle, highest grain yield (4967 kg ha-1) and straw yield (5590 kg ha-1) when compared to 80:60:40 kg NPKha-1. The quality parameters, total phenols and antioxidants contents was recorded highest in 160:60:40 kg NPKha-1 treatment. |