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滨江临海,棉花生育过程中的梅雨、阵雨、秋雨对棉花生产威胁很大。田间排灌工程必须坚持深沟高垅。1991年两段梅雨,雨量是常年的5.66倍,水害成为阻碍棉花生产的主要矛盾。深沟高垅有效地改善了棉花生态环境,“三高”效果显著。单位皮棉(666.7m~2)增38.84kg,衣分增3.46％,效益增249.32元。其增产机理:建树营养体、发展生殖体、提高经济系数。增产的阶段性因素:快排,快发苗;快管,快结桃;快降,少烂桃。田间工程标准:围沟要深,田间沟深30cm以上,垅沟深7cm,垅高15cm。工程施工必须秋播打基础,梅前高壅土,梅后精整修,一沟两用,排灌通畅。
Riverside Linhai, cotton during the rainy season, showers, autumn rain on the threat of great cotton production. Field irrigation and drainage projects must adhere to the deep ditch Gao 垅. Two sections of plum rain in 1991, the rainfall is 5.66 times the annual rainfall, water hazards have become a major obstacle to cotton production. Deep gutter effectively improve the cotton ecological environment, “three high” effect is remarkable. Unit lint (666.7m ~ 2) by 38.84kg, clothing points increased by 3.46%, benefit by 249.32 yuan. Its production mechanism: to build nutrition, the development of genitalia, improve the economic coefficient. Stimulation of the stage factors: fast row, fast hair Miao; fast tube, fast peach; fast down, less rotten peach. Field engineering standards: the ditch should be deep, more than 30cm deep ditch in the field, ditch ditch 7cm, Dao 15cm high. Engineering construction must be based on autumn and winter broadcast, plum soil before the plum, plum refinement, a ditch dual use, irrigation and drainage unobstructed.