论文部分内容阅读
秧田施磷肥是单位面积用量少,经济方便,收效较大的措施。在我区1963年即为广大群众接受,1964年进一步研究磷肥的最大经济效益,现将两年结果整理如下。一、秧田部分1963年选用肥力较差的新秧田,土质黄胶泥,有机质含量为1.28％,全氮0.117％,有效磷5.9ppm,有效钾43.5ppm。试验分为亩施磷肥(过磷酸钙,下同)50、100、200斤及对照四个处理。1964年改在中等肥力的老秧田,土质黄胶泥,有机质含量为1.37％,全磷0.163％,速效磷11.5ppm,铵态氮17.4毫克/100克
Phosphate fertilizer is a seedling field with less dosage, economic convenience, more effective measures. In our district in 1963 that the majority of the public accepted in 1964 to further study the maximum economic benefits of phosphate fertilizer, the results are now organized as follows. First, the seedling part of the selection of 1963 less fertile new seedling, soil yellow clay, organic matter content of 1.28%, 0.117% of total nitrogen, available phosphorus 5.9ppm, available potassium 43.5ppm. Mushi phosphate fertilizer test (superphosphate, the same below) 50,100,200 kg and the control of four treatment. In 1964 changed to medium-fertility old seedling, soil yellow clay, organic matter content of 1.37%, 0.163% of total phosphorus, available phosphorus 11.5ppm, ammonium nitrogen 17.4 mg / 100 grams