摘要
试验结果表明,单产皮棉高于2250kg/ha时,施钾肥96.0～135.6kg/ha、施锌肥34.5～51.0kg/ha、喷施稀土366.0～559.5 g/ha。
It is shows hows that the yield per unit area of ginned cotton overruns 2250 kg ha. appying potosh fertilizer 96～135.6kg/ha. zinc fertilizer 34.5～51kg/ha. spraying rare-earth element 366～559.5g/ha.
关键词
棉花
施肥
钾肥
锌肥
稀土
cotton cultivated area of North Xinjiang
potash, zinc and rare-earth clements blended application
math model of optimization
