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甜菜地膜覆盖在我国各地推广应用,效果良好。对其增产效应因子的研究及其对简单生理指标的测定,从理论上进一步提高,实有必要。本文就我站在1983年地膜覆盖甜菜试验材料中的一些测定项目分析如下:基本情况试验地设在绥化市东兴办事处新兴四队,地势平坦,土质肥沃,前茬番茄,秋翻秋耙,春起垄。结合起垄深施肥料,每亩施农家肥2000公斤,尿素10公斤,磷酸二铵25公斤。垄距60厘米、株距26厘米,5月4日播种、覆膜。覆膜面积1亩,对照2亩,大区直接对比,品种为双丰303。亩保苗4,200株,一次间苗、二次定苗,两次喷药防虫。对照田三铲三蹚,拔一次大草,10月7日收获。
Sugar beet mulching coverage throughout China to promote the use of good results. It is actually necessary to study its yield-increasing effect factor and its determination of simple physiological indexes to further improve theoretically. In this paper, I stood in 1983, some of the test items in the membrane-covered beet test materials are as follows: The basic conditions of the trial is located in Dongxing Office Suihua Xinxing four teams, flat, fertile soil, the former crop tomato, Spring ridge. Combined with ridge fertilizer, fertilizer per acre farmhouse 2000 kilograms, urea 10 kilograms, 25 kilograms of diammonium phosphate. Ridge spacing of 60 cm, spacing 26 cm, May 4 sowing, covered. Film area of 1 acre, control 2 mu, the direct comparison of the region, the variety of Shuangfeng 303. Miao seedlings 4,200 strains, a time between seedlings, the second Dingmiao, spray insects twice. Control three shovel three times, pulling a big grass, October 7 harvest.