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The authers made observation and analysis on the accumulation of dry matten and distribution of nitrogen ( N ) , phosphate ( P ) and pota-ssium(K ) of cucumber by mulching plastic film. 通过田间取样、~(15)N示踪、~(32)P根外追肥等手段分析了黄瓜地膜覆盖后干物质的积累与氮、磷、钾的吸收和分配。覆膜促进了结瓜盛期以前干物质、氮、钾的积累吸收以及结瓜盛期磷素的吸收。
residue of mulching plastic film 地膜残留
residue pollution of mulching plastic film 残留污染
hook-pull model cleanout machine for residual mulching plastic film 勾拉式残膜清除机
Design of Hook-pull Model Cleanout Machine for Residual Mulching Plastic Film 勾拉式残膜清除机的设计
Study on changes of soil fertility in rain fed paddy soils with mulching plastic film 覆膜旱作稻田土壤肥力变化的研究
The Influence of Ploughing and Mulching Plastic Film on the Soil Temperature During Winter and Spring 冬春季节耕地与覆膜对地温影响的研究
Design of Arc Spring Tooth Type Collector for Collecting Mulching Plastic Film the Collecting Property Analysis 圆弧形弹齿滚筒式残膜捡拾机构设计及捡膜性能分析
The physiological characteristics of winter wheat roots and its spatial distribution under mulching plastic film condition 覆膜条件下冬小麦根系生理特性及其空间分布变化
Mulching plastic film 覆膜
Effect of plastic film mulching on crop yield and nitrogen efficiency in semiarid areas. 半干旱地区地膜覆盖对作物产量和氮效率的影响。
The effect of straw and plastic film dual mulch in dry-cultivation of rice planting was studied. 我国覆膜稻栽培研究始于1996年，但迄今都为地膜单元覆盖。
The increasing in grain yield was about 10.3%, 8.9%, 23.2%respectively as compared with the plastic film mulch, the straw mulch and the unmulched cultivatiom. 稻谷产量较地膜覆盖、秸秆覆盖、露地旱作栽培分别增产10.;3%25;8
Abstract: The effect of straw and plastic film dual mulch in dry-cultivation of rice planting was studied. 文摘:我国覆膜稻栽培研究始于1996年，但迄今都为地膜单元覆盖。
The yield, water use efficiency, dry weight, soluble protein and sugar of radish under plastic film mulching with different culture ways were studied. 摘要采用小区试验的方法研究地膜覆盖平作和高畦作方式下萝卜产量、水分利用效率、干物质、可溶性糖和蛋白质积累。
Therefore,the yield product was markedly increased by using salt-tolerant wheat cultivar and plastic film mulching cultivation in saline soils. 利用耐盐小麦品种进行覆膜穴播显著提高盐碱地小麦产量。
Plastic film mulching markedly increased biomass per a plant,flag leaf area,tillers per unit soil area,grains per ear and 1 000-grain weight. 覆膜显著增加单株生物量、旗叶面积、亩穗数、穗粒数和千粒重。
Underground water quality in rice field under plastic film mulching cultivation was monitored during rice growth period. 对水稻覆膜旱作条件下稻田地下水水质变化作了动态检测。
The integrated effects exhibited grass mulching> plastic film mulching > shallow scarification > soil surface scarification > the control. 综合各种效应，不同处理优劣顺序为覆草＞盖膜＞浅松土＞表层松土＞对照。
Application of CAD technology to plastic film capacitors. CAD技术在有机薄膜电容器中的应用。