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江西春季多雨,历年在春耕播种时,每月降雨达240一390公厘,降雨天数占一半以上。降雨后,所有灌排沟渠均蓄满雨水,田间积水无法排出。另一种情况是:在稻田中均栽有缘肥。为了使缘肥迅速腐烂分解,在翻耕后需灌水沤田。就是有条件排水,也不能排。否则,肥料会随水排出。由于上述原因,苏联与我国北方成功的旱直播经验很难在我场应用。一九五二年我场曾进行一百余亩旱直播的尝试,结果出苗稀少。在春季多雨的
Jiangxi is rainy in spring and has a monthly rainfall of 240 to 390 millimeters with more than half of rainfall days during the spring seeding. After rainfall, all irrigation ditches are full of rainwater, field water can not be discharged. Another situation is: in the paddy fields are planted with margin fertilizer. In order to decompose the fate of the rapid decay, need to irrigate the field after plowing. Is conditional drainage, can not row. Otherwise, the fertilizer will drain with the water. Because of the above-mentioned reasons, the successful experience of direct drought broadcast in the Soviet Union and northern China is very difficult to apply in our field. In 1952, I had conducted more than 100 acres of trials of dry broadcasting in the field. The result was sparsely populated. Rainy in the spring