哈密市经过第二次全国土壤普查,发现大部分耕地缺氮少磷或氮磷比例失调,是影响产量的原因之一。适宜的氮磷化肥用量和配合比例是提高化肥利用率、保证作物高产稳产低成本的一项重要措施。在自治区化肥 Hami City, after the second national soil survey found that most of the cultivated land lack of nitrogen or phosphorus or nitrogen and phosphorus imbalance is one of the reasons affecting the yield. Appropriate amount of nitrogen and phosphorus fertilizer and the proportion is to improve fertilizer utilization, to ensure high-yield stable low-cost an important measure. Fertilizer in the autonomous region