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合理深耕是培肥地力、建设稳产高产农田的重要措施。针对目前大多数农田耕作深度只有10厘米左右的情况,新兴县土肥站在东成公社都村大队,连续3年5造进行耕深10、16和20厘米,结合亩施牛栏肥2000斤作全层基肥的试验,每处理3次重复,小区面积0.05亩。试验地为地力均匀的泥肉田,耕作层厚约20厘米,年亩产稻谷1300斤左右。试验品种早稻为“桂朝2号”,晚造为“包选2号”,栽培管理措施基本相同。试验结果: 深耕16和20厘米的比深耕10厘米的好,年亩增产稻谷83.4—136.4斤,增产率5.8—9.5％;深耕16厘米的比1次深耕20厘米的更增产,年亩增产稻谷53斤,增产率3.7％(表1)。
Rational deep plowing is an important measure to cultivate fertility and build a stable and high yield farmland. For most of the current farmland farming depth of only about 10 centimeters, Xinxing County, Tucheng station in the commune Ducun brigade, for 3 consecutive years 5 to cultivate deep 10,16 and 20 cm, combined with Keshan barn fertilizer 2000 pounds Full-thickness base fertilizer test, each treatment 3 times repeated, plot area of 0.05 acres. Test ground for soil evenly Mudan Tian, tillage layer thickness of about 20 cm, the annual output of about 1300 kg of rice. The experimental varieties of early rice as “Gui Chau 2” late made “package selection 2”, cultivation and management measures are basically the same. Test results: Deep plowing 16 and 20 cm better than deep plowing 10 cm, yield of 83.4-136.4 kg per mu of grain, yield increase of 5.8-9.5%; cultivating more than 16 cm deep plowing 20 cm more yield, 53 pounds, an increase of 3.7% (Table 1).