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在“饲用玉米-黑麦草”草地农业系统研究中,5月初播种的不同种类饲用玉米产量有较大差异。兼用型玉米奥玉5102干物质产量最高,达21 138.1 kg/hm2,是青刈型玉米玉草1号的干物质产量的3.15倍。通过种植系统优化,科饲1号-华农1号-杰威多花黑麦草种植系统产量最高,年干物质产量达44 303 kg/hm2,但兼用型玉米-杰威多花黑麦草种植系统成本较低。
In the “Feed Corn-Ryegrass” grassland farming system study, there was a large difference in the yields of different types of forage maize sown in early May. The dual-use corn Aoyu 5102 had the highest dry matter yield of 21 138.1 kg / hm2, which was 3.15 times of the dry matter yield of the green-corn type Yushu 1. Through the optimization of planting system, the yield of Kezhan No.1 - Hua Nong 1 - Jie Wei Lolium was the highest, and the annual dry matter yield reached 44 303 kg / hm2. However, the cost of dual-use corn-Jie Wei Lilly grass planting system Lower.