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麦收后正是搶种季节,劳力比較紧张,特别在丘陵地区往往因肥料不足,麦茬施肥很感困难。如果在麦收前套种短期綠肥,夏种前随犁掩青,每亩能收到千斤以上鮮草,就可基本解决夏种基肥問題。套种檉麻是否可以收到千斤以上鮮草?套种后对麦子生育有什么影响?有人認为檉麻根系大、吸肥力强,套种期間是否会过多消耗土壤营养(主要是氮素)?1962年,我們进行了試驗,初步明确了上述間题。試驗选择元麦繁殖地四亩,于乳熟期(4月28日)每亩撒播檉麻种子十五斤,随即中耕盖土,5月3日齐苗。元麦于5月20日成熟收获,6月10日掩青檉麻。掩青时測定檉麻生育性状与产量,株高三十八点五厘米、茎粗二点四毫米、单株叶片数十七点八个、可見主根长六点一厘米、单株根瘤数十八点六个、叶色浓綠、生长势健壮,亩产鮮草一千五百六十斤,生长好的亩产鮮草达二千四百斤。同
Wheat harvest is the rush to sew the season, labor is more intense, especially in the hilly areas often due to lack of fertilizer, wheat stubble is very difficult to fertilize. If you plant short-term green manure prior to harvest, with the plow before the summer to cover the green, per acre can receive more than a kilogram of fresh grass, can basically solve the problem of summer seed base fertilizer. Is it possible to receive over 1000 pounds of fresh grass for intercroping Canola? What effect does it have on the fertility of wheat after intercropping? Some people think that the root system of Asparagus officinalis is large and the absorption of fertility is strong. Will soil nutrition (mainly nitrogen) be consumed too much during intercropping? 1962 Years, we conducted a pilot, initially identified the above problems. Experimental selection of wheat four acres of breeding ground, in the milk stage (April 28) sowing sesame seeds per acre fifteen pounds, then cultivated cover the soil, May 3 Qi Miao. Yuan Mai harvest harvest on May 20, June 10 to cover Alsophila Ma. Covering the green when determining the fertility traits and yield, plant height 38.5 cm, stem diameter 2.4mm, leaf number 17.8 per plant, we can see the main root length 6.1 centimeters, single root nodules dozens 8.6, with dark green leaves and vigorous growth. The yield of fresh grass of 1,560 kg per mu and fresh grass of 2,400 kg per mu. with