摘要
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.
Alfalfa production was investigated in loss hilly ravine region of Mizhi county,the north Shanxi province. The reasons which lead to a lower alfalfa yields are due to sowing ways being backward,low densitv,varieties being old and single, eight year studies indicate than the sythetical measures of adopting equal height drilling,selecting large leaf alfalfa varieties, increasing phosphorus fertilizer applied and atrengthening field management etc. could make the fresh grass yield reach to 21178 kg/ha, and could increas fresh grass yield 13522. 5 kg/ha, in contrast to local traditional cultivation techniques.
出处
《中国草地》
CSCD
1991年第2期30-33,共4页
Grassland of China
