Effects of specific fertilizers on the yield , quility , biologiceal characteristics of processing tomato under plastic mulched drip irrigation 覆膜滴灌条件下加工番茄专用肥肥效的研究
So we should cover the land with wheat straw or wheat chaff or popularize plastic mulching of wheat after sowing wheat . 5 所以应该在黄?土地区播种小麦后用小麦秸秆或麦糠进行田面覆盖或推广地膜小麦的种植。
Plastic mulches create a barrier preventing fumigant gases from escaping to the atmosphere , thereby increasing their effectiveness 塑料薄膜覆盖可以形成防止烟熏气体逸散到大气的屏障，所以提高烟熏气体的杀虫效果。
There is some benefit under clear plastic mulch due to higher temperatures generated （ solarization ） than occurs with opaque mulches 用透明塑料膜覆盖优于不透明塑料膜覆盖，因为前者能产生较高的温度（日晒作用） 。
Based on large documents , the authors summarized the status and progress about agricultural plastics mulching films and degradable mulching films 摘要本文在广泛收集文献资料的基础上，对我国农用薄膜的生产、应用现状，国内外可降解农膜的研究进展进行了归纳。
One innovative grower near the salinas valley of california uses plastic mulch only 15 cm wide to protect drip - irrigated peppers from soil contamination 加利福尼亚州萨利纳斯流域附近的一位富于创新的种植者仅用15厘米宽的塑料薄膜覆盖就使得用滴灌灌溉的甜椒免遭泥土污染。
4 . at 8 ? slope land areas , the sequence of increasing production benefit of different cultivation is : mulching > plastic mulching > furrow and ridge tillage > traditional product 在黄?土地区的8坡地上，不同耕作措施对小麦的增产效益按大到小的顺序是：覆盖覆膜等高沟垄直线坡。
On the other hand , strawberry growers in central california do not benefit from earlier harvest market - wise , but plastic mulch is widely used for another purpose , specifically fruit quality 相反，加利福尼亚中部的草莓种植者并没有获益于提早收获的市场优势，但塑料薄膜覆盖广泛用于其它目的，特别用于提高果品品质。
Black plastic mulch , the primary color used in vegetable production , absorbs most uv , visible , and infrared wavelengths of incoming radiation and reradiates energy in the form of thermal radiation or long - wavelength infrared radiation 主要用于蔬菜生产上的黑色塑料薄膜，能够吸收入射光线中的大部分紫外线、可见光和红外线，再以热辐射或长波红外辐射的形式再辐射能量。
They decrease soil bulk density , increase soil porosity and soil saturated water content . the result of straw mulch is best , plastic mulch is better . the movement of soil water in gneiss area of tai - hang mountain has following regulation 其中以秸秆覆盖的效果最好，其次为地膜覆盖；太行山片麻岩区土壤水分运动有如下规律，土壤含水量随土壤深度的增加而逐渐降低。
