METHOD OF REGULATING WATER AND SALT REGIME WHEN GROWING RICE

摘要

The invention relates to the field of agriculture, mainly to the amelioration of irrigated land. The purpose of the invention is to increase the yield of rice on heavy saline soils by improving their reclamation state. The method includes changing the amount of drainage flow on checks with closed drainage. In the germination phase of the seedlings, the drainage drainage is brought to a value of O, 02 ... O, 025 m / day, and before the tillering stage a constant layer of water is created. In the tillering stage, with the critical mineralization of irrigation water, the drainage flow increases up to 0.03 ... 0.05 m / day. In the tubing phase, the drainage runoff is reduced, and in the vegetation phase the milky drainage, drainage runoff is stopped. c At low filtration rates, desalination of the upper layer of soil without nutrients in the lower horizons occurs. 1C (/ CO with SP