查询词典 soil mulch

In low yield region,"life-maintaining water"should be guaranteed and otherconstruction should be enforced.3.NT altered soil surface condition for mulch cover and without tillage.NT improved availablesoil water for summer corn growth.Stronger"source and pool"and sound crop structure werebuilt in NT system.

覆盖免耕减少了土壤蒸发，具有较优越的土壤水分状况，同时增加了作物蒸腾，在一定程度上缓解了因降雨分配不均导致夏玉米需水与土壤供水的矛盾，提高了作物产量和水分利用效率。

Conventional tillage with bare ground, conventional tillage with straw incorporated and no-tillage with straw mulch were studied in the Hexi corridor of Gansu provience. The result showed: on summer fallow NTS stored soil water more than CTB and CTS by 30.62mm and 23.91mm, respectively; the winter storage irrigation quotas should be reduced to 900~1350 m^3/hm^2 on winter fallow; evaporation controlling rate arrived 38.1% and 7.3% at winter storage irrigation quotas 975m^3/hm^2 and 2100m^3/hm^2, respectively; NTS did not reduce ET during the spring wheat growth stage; yields different between treatments was not significant.

对甘肃河西内陆河灌区采用常规耕作、秸秆还田和覆盖免耕技术的农田水分效应进行研究，试验结果表明：在夏季休闲期，覆盖免耕比常规耕作和秸秆还田多贮水30.62mm和23.91mm；冬季休闲期可将大定额的储水灌溉减少到975~1350立方公尺/hm^2；覆盖免耕抑制蒸发率在储水定额为975立方公尺/hm^2时达到最大值38.1%，而在2100立方公尺/hm^2时最小为7.3%；覆盖免耕在作物生育期并没有减少土坡耗水量；各处理产量之间没有显著差异。

The experiment of soil moisture conservation in summer fallow land in the years of1983～1984 indicated that the method to mulch.

1983年和1984年进行的夏闲地保墒方法试验表明，采用麦糠或麦草覆盖的方法可以在0～2m土层多保蓄土壤水分54～64mm。

Effect of water saving was studied under no-tillage with straw mulch, conventional tillage with straw incorporatedand conventional tillage on bare ground. The results showed that NTS increased soil water storage by 30.6 mm and 23.9 mm over CTS and CTB during summer fallow.

对免耕覆盖、秸秆还田和常规耕作在休闲期的节水效果研究表明：在夏季休闲期，免耕覆盖比常规耕作多贮水30.62 mm，比秸秆还田多23.91 mm；在冬季储水灌溉期间，可将储水定额从2 100 m3/hm2减少到600和975 m3/hm2。

This creates mulch on the soil surface.

这可以在土地表面形成覆盖物。

Then apply 3 to 5 inches mulch to soil surface conserve moisture / prevent weeds.

然后用3至5厘米土壤表面复盖以涵养水分/防止杂草。

Then apply 3 to 5 inches mulch to soil surface conserve moisture / prevent weeds.

然后采用3至5英寸地膜对土壤表层水分保护/防止杂草生长。

Field experiments were carried out to study the effects of drip irrigation under mulch film on soil ecology environment and growth of cotton.

通过田间试验研究了膜下滴灌对棉田生态环境状况及棉花生长发育及产量形成的影响。

Spread a thick layer of mulch on the soil to help conserve moisture and protect the shallow roots.

散布了一层厚厚的地膜对土壤，以帮助保存水分和保护根系浅。

The forming mechanism and the changing regular of soil water content under plastic mulch were systematically expounded.

系统阐述了地膜覆盖土壤水分效应的形成机制及其变化规律。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。