Effects of N, P, K on growth and development of plants and its physiological mechanisms

This article summarized the effects of nitrate,phosphorus and potassium on and the interaction of N,P,and K with phytohormones in lateral root growth and development: initiation,development and emergence of lateral root primordial,meristem activation and root elongation;summarized the effects of nitrate,phosphorus and potassium on root distribution in soil.It supplies certain references for reasonable nutrient management in yield.