论文部分内容阅读
通过对陕北黄土丘陵沟壑区米脂县苜蓿生产的调查,发现当地苜蓿产草量低的主要原因是由于播种方式落后、密度低、品种古老单一、栽培管理粗放等综合因素造成的。8年的试验研究结果表明,采用等高条播、选用新疆大叶苜蓿晶种、增施磷肥和加强田间管理等综合措施,可使苜蓿平均亩产鲜草达1411.9公斤,较当地用传统栽培法栽培的当地苜蓿增产鲜草901.5公斤.
Based on the investigation of alfalfa production in Loess Plateau in Loess Hilly and Gully Region of northern Shaanxi Province, it was found that the main reasons for the low yield of alfalfa in the local area were due to backward planting methods, low density, ancient single species and extensive cultivation and management. Eight years of experimental study showed that the use of contouring, selection of seedlings of Xinjiang alfalfa, phosphorus application and strengthening field management and other comprehensive measures can make alfalfa an average of 1411.9 kg per mu of fresh grass, compared with the local use of traditional culture Cultivation of local alfalfa yield fresh grass 901.5 kg.