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1963年,在全区范围內进行了早稻磷肥多点試驗。試驗項目有不同土壤的磷肥增产效果鑑定、施肥方法以及磷肥品种比較。試驗方式有小区試驗及大田对比試驗。供試肥料主要是过磷酸鈣和鈣鎂磷肥。試驗結果表明,早稻低产田施用磷肥,大都获得增产。根据281个試驗点的材料統計,获得显著增产的有240个点,占統計数
In 1963, carried out a multi-point trial of phosphate fertilizer in the region. Experimental projects have different soil phosphate appraisal effect of increasing production, fertilization methods and phosphate fertilizer varieties. Test methods are plot test and field contrast test. Test fertilizer is mainly superphosphate and calcium magnesium phosphate. The results showed that most of the phosphate fertilizer was applied in low-yielding rice fields in early rice. According to the material statistics of 281 test points, there are 240 points for significant yield increase, accounting for the statistics