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青贮玉米是乳牛重要的粗饲料,是饲料中能量和维生素的良好来源,也是单位面积上生产能量较高的作物。目前奶牛数量发展很快,加上科学饲养,青贮饲料的生产将越来越重要。垦区1989、1990、1991三年试验、示范,表现很突出,想做到高产、高糖应掌握五点: 1.适时早播铁单八号生育期140天左右,需要活动积温2890℃。属晚熟单交种,哈尔滨、牡丹江地区应在五月中旬播种,果穗可达到
Silage corn is an important roughage for dairy cows and is a good source of energy and vitamins in feed and a crop that produces more energy per unit area. At present, the number of dairy cows develops rapidly, and with the scientific feeding, the production of silage will be more and more important. Reclamation 1989,1990,1991 three years of experiments, demonstrations, performance is very prominent, want to achieve high yield, high sugar should have five points: 1. timely sowing iron single on the 8th growth period of about 140 days, need activity accumulated temperature 2890 ℃. Is a late-maturing single cross-species, Harbin, Mudanjiang area should be sown in mid-May, ears can be reached