论文部分内容阅读
随着农业生产的发展,对磷肥的需要日益增多,我省磷矿资源极为丰富,研究磷矿粉的直接利用,有迫切的现实意义。我省广泛分布的湖区冲积土,含速效磷较多,在种植早稻时直接施用磷矿粉的肥效如何?用什么办法提高磷矿粉的肥效?我们在一九七三年对这个问题进行研究。现将研究工作情况简报於下。
With the development of agricultural production, the need for phosphate fertilizer is increasing day by day. The phosphate rock resources in our province are extremely rich. It is of urgent practical significance to study the direct utilization of phosphate rock. In our province, the lake alluvial soil, which contains more readily available phosphorus, is widely distributed in the alluvial areas of the lake. How can the fertilizer efficiency be increased when phosphate rock is used directly in the cultivation of early rice? How can we improve the efficiency of phosphate rock? In 1973, we studied this issue . The research work is now briefed on the next.