1) Production with plastic-film mulching
覆地膜生产
2) heat coating sand production line
热法覆膜砂生产线
3) farmland covered with film
耕地覆膜
4) plastic film mulching
地膜覆盖
1.
Analysis of adverse effects on maize yield decrease resulted from plastic film mulching in dryland;
地膜覆盖导致旱地玉米减产的负面影响
2.
The benefit and prospect for reuse of plastic film mulching and no-tillage technique in the semiarid region of Gansu Province;
甘肃半干旱区地膜覆盖再利用免耕技术效应与前景分析
3.
Studies on effects of plastic film mulching on soil environment of maize field;
玉米地膜覆盖的土壤环境效应
5) film mulching
地膜覆盖
1.
Study on the effect of film mulching techniques of flue-cured tobacco on the yield and quality of flue-cured tobacco;
烤烟地膜覆盖对烟叶产量及品质的影响
2.
Effects of straw mulching and film mulching on flue-cured tobacco growth and quality;
稻草覆盖和地膜覆盖对烤烟生长发育及品质的影响
3.
A field experiment was carried out on typical Ust-Sandiic Entisols soil in semi-arid area to study the effect of film mulching,nitrogen(N) application and supplementary irrigation on spring maize(Zea mays L.
以典型半干旱区干湿砂质新成土(Ust-Sandic Entisols)为供试土壤进行田间试验,研究地膜覆盖、施氮及补充灌水量对春玉米(Zea maysL。
6) plastic film mulch
地膜覆盖
1.
Effects of plastic film mulching and pre-sowing irrigation on yield formation of spring wheat;
地膜覆盖和底墒灌溉对春小麦产量形成的影响
2.
The study concerned about four cultivation modules(no mulch,straw mulch,plastic film mulch and furrow planting),three nitrogen fertilizer levels(0,120 and 240 kg N/hm2) and two wheat densities(seed rate of 180 and 225 kg/hm2).
59 kg/hm2,且主要积累在80-160 cm土层,土壤氮库不仅明显,且残留比前3年土壤剖面显著下移(前3年主要累积在100 cm),差异达显著和极显著水平;不同栽培模式和种植密度0-200 cm土层硝态氮残留累积规律及其小麦籽粒吸氮量基本相似,排序均为:地膜覆盖>常规种植>秸秆覆盖>垄沟种植;随施氮量的增加土壤硝态氮残留量也相应增加,N0处理0-200 cm土壤平均硝态氮残留量为57。
3.
According to experiment results from 2004 to 2005 in Zhangye city of Gansu province,to study the effects of plastic film mulching(including well watered treatment F(FM),light and medium water deficit treatment L(FM),M(FM)),and bare field(including well watered treatment F(B) and medium water deficit treatment M(B)).
借助于国家高科技农业“863”课题,以春小麦为供试作物,2004年和2005年在甘肃省张掖市甘州区进行了膜上灌春小麦调亏灌大田试验研究,研究了地膜覆盖(设丰水F(FM)、轻度L(FM)和中度M(FM))、露地(设丰水F(B)和中度M(B))。
补充资料：有机覆层:有机覆层
在基体材料表面覆以有机材料的材料保护层。在机械製造中﹐有机覆层的绝大部分是涂装层﹐或称油漆层。此外﹐也有用橡胶或塑料作为覆层的。需要抗酸﹑硷和抗腐蚀性气体和液体的钢铁件﹐常用厚约 3毫米的橡胶(如氯丁橡胶)或塑料(如氯化亚乙烯共聚物)黏在表面﹐可长期保护基体不受腐蚀。这种覆层主要用在大型抗蚀容器或排气系统中。埋在土壤中的金属构件﹐常以聚乙烯带包裹保护。在喷鉬或喷不锈钢的表面上涂覆聚四氟乙烯﹐在150℃温度下摩擦係数很低﹐磨损轻微﹐适於製造低载荷和要求高度清洁的滑动轴承﹐或用在食品﹑精细包装和纺织机械上。各国的Du﹑Dx轴承都是以塑料与金属复合製成的。通过静电喷涂将环氧树脂﹑氯化聚醚﹑聚四氟乙烯以及聚氯乙烯等塑料粉末涂覆在金属表面﹐可获多种抗化学腐蚀性极好的覆层﹐可用於输水﹑污水处理和海洋平台的设备上。有机覆层在辉光放电情况下﹐有机单体可以聚合成无针孔的有机膜﹐用作电容器的介质层。
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