CAJ | 학술논문

为了探讨玉米（Zea mays ）作为青贮饲料在高寒牧区的品质及丰产栽培技术，开展了玉米品质分析及密度、追肥、玉米与箭筈豌豆混播试验研究．结果表明：4个玉米品种的粗蛋白质2．48％～4．49％，粗脂肪0．40％～0．72％，中性洗涤纤维（NDF）67．86％～73．45％，酸性洗涤纤维（ADF）37．30％～46．39％．玉米在高寒牧区可以高密度种植，‘金穗3号’每公顷种植21万株时的鲜草和干草产量比种植15．57万株时增产22．82％和16．55％，‘中玉9号’增产14．33％和9．79％．拔节期每公顷追施尿素150 kg 时比不追肥时鲜草和干草的产量，‘金穗3号’增产22．92％和27．32％，‘中玉9号’增产13．71％和12．64％．玉米与箭筈豌豆混播，玉米株高、茎粗、单株鲜质量和干质量表现为极显著降低（P＜0．01），玉米单播与混播间总鲜草和干草产量差异不显著（P＞0．05）．
위료탐토옥미（Zea mays ）작위청저사료재고한목구적품질급봉산재배기술，개전료옥미품질분석급밀도、추비、옥미여전괄완두혼파시험연구．결과표명：4개옥미품충적조단백질2．48％～4．49％，조지방0．40％～0．72％，중성세조섬유（NDF）67．86％～73．45％，산성세조섬유（ADF）37．30％～46．39％．옥미재고한목구가이고밀도충식，‘금수3호’매공경충식21만주시적선초화간초산량비충식15．57만주시증산22．82％화16．55％，‘중옥9호’증산14．33％화9．79％．발절기매공경추시뇨소150 kg 시비불추비시선초화간초적산량，‘금수3호’증산22．92％화27．32％，‘중옥9호’증산13．71％화12．64％．옥미여전괄완두혼파，옥미주고、경조、단주선질량화간질량표현위겁현저강저（P＜0．01），옥미단파여혼파간총선초화간초산량차이불현저（P＞0．05）．
In order to discuss the quality of Zea mays and its high yield cultivation technology in alpine pastoral areas,the studies on the quality analysis,density and topdressing,as well as mixed sowing of Zea mays andVicia sativa were carried out.The results indicated that the crude protein,crude fat,neutral de-tergent fiber (NDF)and acid detergent fiber (ADF)of four Zea species ranged from 2.48% to 4.49%, 0.40% to 0.72%,67.86% to 73.45% and 37.30% to 46.39%,respectively.The results also revealed that Zea mays could be planted with high density in alpine pastoral areas.For example,the fresh and dry yields of ‘Golden spike No.3’with the planting density of 21 million individuals per hectare were 22.82% and 16.55% higher than those with the planting density of 15.57 million individuals per hectare,which of ‘Chi-na corn No.9’were 14.33% and 9.7%.At the jointing stage,when dressing 150 kg/hm2 urea,the fresh and dry yields of ‘Golden spike No.3’and ‘China corn No.9’increased 22.92% and 27.32%,13.71% and 12.64%,respectively,compared with those of no topdressing urea.When Zea mays andVicia sativa were mixed sowing,the plant height,stem diameter,fresh and dry weights of individual plant decreased signifi-cantly (P <0.01),but the fresh and dry yields were not significantly different between mixed planting and signal planting of Zea mays .