闻喜县裴社公社农科站技术员郭企华精心植棉,1983年2.5亩早地上采取地膜覆盖栽培,亩产皮棉230多斤,他的做法主要有以下几点。1.双层施肥,耙耱保墒。旱地的保墒工作至关重要,春季深耕跑墒严重,因此他采取秋深耕,耕后耙耱。来年早春耙耱3次,播前浅犁1次。底肥分两次施入,秋深耕时每亩施猪粪6,000斤,结合播前浅犁每亩施过磷酸钙80斤,尿素20斤。化肥在上层,有机肥在深层,可满足棉苗不同时期的需要。2.防冻保全苗。他的棉田是4月6日播种,13日出苗,为预防冻害,开小沟播种,播后仍保留播种沟,出苗后也不急于放苗,4月16日出现霜冻,他的棉苗未受冻害。相邻棉田未留播种沟,棉苗紧贴地膜,虽未放苗也受到冻害。4月28日又有一次冻害天气,由于尚未间苗、定苗,也未受害,基本 Wenxi County Pei Shek agricultural cooperatives station technician Guo Qihua carefully cotton, 1983 2.5 acres of land to take early mulching cultivation, 230 kilos of mu produce lint, his approach mainly the following points. 1. Double fertilization, rake 耱 preserving moisture. Soil moisture conservation work in drylands is crucial, deep plowing in the spring soil moisture, so he took autumn plow, rake 耕 after plowing. In the coming year, rake 耱 3 times in early spring, before sowing shallow plow 1 times. Base fertilizer applied twice in autumn autumn plowing per mu pig pig manure 6,000 pounds, combined with shallow sow before sowing calcium phosphate 80 kg per mu, urea 20 pounds. Fertilizer in the upper, organic fertilizer in the deep, to meet the needs of different periods of cotton seedlings. 2. Antifreeze Paul seedlings. His cotton field is April 6 sowing, 13th emergence, in order to prevent frost damage, open a small ditch sowing, sowing still sowing after sowing, seedling is not in a hurry after emergence, the emergence of frost on April 16, his cotton seedlings Frost damage. Adjacent cotton fields did not leave sowing, cotton seedlings close to the film, although not Fangmiao also received frost damage. On April 28, there was another frost damage to the weather. Since it has not yet been cultivated, it has not suffered any damage yet. The basic