摘要
试验于正常生育（不刈青）和连续刈青两种条件下，研究了５种青饲作物在上海地区生态条件下，它们的生育特性和产量表现。结果表明：大刍草营养生长期最长，耐肥、高产、优质是极有发展前途的青饲作物；苏丹草类，生育期短，早发，耐刈，适于用作淡水养鱼夏季均衡供饲的优良青料；甜高粱类，中熟，茎秆富含糖分，但分蘖性弱，不耐刈，适于密植制作奶牛青贮料。
A trial with 5 species of warm-season green crops was conducted under the conditions of normal growth (without fresh grass cutting) and abnormal growth (with frequent fresh grass cuttings)during the summer of 1991. Studies showed that the Mexican teosinte has a long vegetative growth period with high yield and good quality of fresh grass,so it has a vast future to be developed as a green crop for live stock and fresh water fishes.The Sudan grass has a short growth period and is characterized by early maturing and tolerance of frequent frest grass cuttings, so it can be used as fist food supplied in summer for fresh water fishery. The sorgo M-81E, with stems rich in sugar, is a middle maturing type,intolerant to frequent fresh grass cuttings owing to weak tillering, so it is fit for close planting to get high yield and suitable to be ensiled and used in feeding dairy cattle.
出处
《上海农业学报》
CSCD
1995年第1期53-58,共6页
Acta Agriculturae Shanghai
关键词
青饲作物
夏季
饲草
生育特性
Green crop
Warm-season grass
Characteristics and utilization
