Simulating the dynamics of dry matter and N, P_(2)O_(5), K_(2)O accumulation of cotton in South Xinjiang

The cotton total dry matter and reproductive organs dry matter accumulation rates were fastest at 86-93 days and 99-100 days after sprout. The nutrient N accumulation rates were fastest at 73-80 days after sprout. The nutrient P_(2)O_(5), accumulation rates were fastest at 72-76 days after sprout. The nutrient K_(2)O accumulation rates were fastest at 65-76 days after sprout the accumulation of the aboveground part and the reproductive organs dry matter of high yield cotton (2256kg/hm~(2)) are 118.69, 69.33g/plant. The accumulations of nutrient N, P_(2)O_(5), K_(2)O are 263.890, 68.635, 334.725 kg/hm~(2). and N:P_(2)O_(5):K_(2)O=1:0.26:1.27.