论文部分内容阅读
本文就草原2号这种具有广泛生态适应性和稳定生产力的苜蓿品种的生长发育规律特点和肥力水平对其生长及产量形成,以及播期、播量和田间管理的增产效应等分别加以阐述,并在此基础上形成了渭北旱塬苜蓿规范化栽培技术体系,通过三年的生产实践,取得了明显的经济效益,有力地促进了旱塬农牧结合和土地用养结合,为振兴渭北农村经济开辟了一条新途径。
In this paper, the growth and yield characteristics of alfalfa cultivars with broad ecological adaptability and stable productivity, such as Prairie No. 2, and the effects of fertility levels on its growth and yield formation, as well as the yield-increasing effects of sowing date, sowing date and field management, On the basis of this, standardized cultivation technology system of alfalfa in Weibei Arid Highland was formed. Through three years’ production practice, obvious economic benefits have been obtained, which effectively promoted the combination of agriculture and animal husbandry and land use and maintenance in the dry land, Rural economy opened up a new way.