论文部分内容阅读
农业部近日决定向全国推广果园生草覆盖技术,推广草种为白三叶。 白三叶草特点 白三叶属宿根性植物,种子落地自然更新能力强,利用年限为8年左右,具有耐荫性能,在30%透光率的环境下能正常生长,适宜果园种植。成坪后具有较发达的侧根和匍匐茎,与其他杂草相比有较强的竞争力,具有一定的耐寒和耐热能力,对土壤PH值的适应范围达到4.5—8.5,可以在我国广大南北地区生长,在我国华北
The Ministry of Agriculture recently decided to promote orchard grass coverage technology across the country to promote grass for the white clover. White Clover characteristics White clover is a subterranean plant, the seeds fall to the ground with natural regeneration ability, the useful life of about 8 years, with shade-tolerant performance, 30% light transmittance of the environment can grow normally, suitable for orchard planting. After the lap has a more developed lateral roots and stolons, compared with other weeds have a strong competitive edge, has a certain ability of cold and heat resistance, to adapt to the range of soil PH value reached 4.5-8.5, can be in our country north and south Regional growth in North China