1) cover crop
覆盖作物
1.
The effect of winter cover crop on soil organic carbon and crop yield;
农田冬季覆盖作物对土壤有机碳含量和主作物产量的影响
2.
The influence of cover crops and tillage system on fungal biomass in soil
覆盖作物及耕作方法对土壤丝状真菌生物量的影响
3.
Cover crops can improve the water holding ability of soil; however, its effect o n soil hardness depends on the moisture content of soil.
覆盖作物可改善土壤持水能力,但是对土壤硬度的影响与土壤含水率有关。
2) plant cover
作物覆盖度
1.
Temporal and spatial variation of plant height, plant cover and leaf area index;
作物高度、作物覆盖度和叶面积指数的时空变化(英文)
3) winter cover crop
冬季覆盖作物
1.
) planted in southern China s double-rice region as winter cover crops on soil microbial biomass C and N was evaluated by the chloroform-fumigation-extraction method.
利用氯仿熏蒸浸提法研究了南方双季稻区4种冬季覆盖作物对土壤微生物量碳、氮周年动态的影响。
4) crop cover factor
作物覆盖因子
5) combinating bed-planting with strew mulching
垄作覆盖
1.
The experiment showed the summer corn cultivation of combinating bed-planting with strew mulching markedly increased the amount of soil water storage from 0~40 cm deep soil profile,especially in the scope of 5~10 cm,in contrast with the flatting cropping system.
试验结果表明,在0~40 cm土层含水量,夏玉米垄作覆盖较平作有显著的提高,以5~10 cm表现尤为突出,随着土层的加深,这种差异逐渐减少;玉米冠层蒸发量平作平均值分别高于平作覆盖、垄作和垄作覆盖12。
6) Mulch tillage
覆盖耕作
1.
As a new soil management method in the arid, semi-arid and semi-humid drought area, mulch tillage could improve soil environment by reduced tillage, no tillage, subsoiling and mulching, and then achieve the goal of sustainability of soil quality for high and stable yield.
覆盖耕作是干旱、半干旱和半湿润易旱区对土壤进行保护性管理的有效手段,通过采取少免耕、深松、辅之以覆盖措施,实现对旱地土壤环境因子水肥气热的调控,从而达到土壤环境质量的可持续良性循环,实现农作物高产、稳产的目的。
补充资料：“两基”人口覆盖率
%26#8220;两基%26#8221;人口覆盖率：指一个地区按照国家规定的有关验收标准，已实现%26#8220;基本普及九年义务教育、基本扫除青壮年文盲%26#8221;的县（包括县级行政单位）的人口数之和占本地区总人口数的比重。2002年、2003年全国%26#8220;两基%26#8221;人口覆盖率分别为91％和91.8％。2004年国务院批准实施《国家西部地区%26#8220;两基%26#8221;攻坚计划》，目标是到2007年底在西部地区实现基本普及九年义务教育，基本扫除青壮年文盲。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条