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去年五月中旬,我场十四连有四十亩早稻(品种为二九南二号)出现倒缩现象,发棵停止,越长越小,稻苗黄而不发。针对这种情况,我们进行了施用磷肥的试验,结果表明,对促进稻苗转化效果较好。试验分三种处理:(1)每亩施过磷酸钙(敲细过筛)三十斤与少量草木灰,施后即耘稻;(2)单耘稻,不施磷肥;(3)对照,不耘稻,不施磷肥。六月十七日观察:施过磷酸钙立即耘稻的田块,已经封行,发棵较好,叶色嫩绿,株高较对照增加八厘米,每穴多五
In mid-May of last year, there were contractions of 40 acres of early rice (with a variety of 29 nannan 2) in 14 fields in my field. The trees stopped and the longer the smaller, the yellow rice did not grow. In response to this situation, we conducted a pilot application of phosphate fertilizer, the results show that the promotion of rice seedling conversion is better. The experiment is divided into three treatments: (1) applying 30 kg of calcium phosphate per mu per acre with a small amount of ash and applying it afterwards; (2) single-Yun rice without phosphate fertilizer; (3) Do not Yun rice, do not apply phosphate. June 17 observation: applied calcium phosphate immediately Yun rice plots, has been sealed line, hair better, leaf color green, plant height increased by 8 cm compared with the control, each hole more than five