土壤覆盖

Under different winter cover crop conditions, the ability of absorption of nutrients and growth of late rice were improved, so that the biomass accumulation of late rice of T1, T2, T3, T4 were higher than that of CK.

结果表明：不同冬季覆盖植物均能改善稻田土壤肥力状况，提高稻田土壤有机碳和全氮的含量，促进晚稻对养分的吸收和植株生长发育。

In order to research the effects of minimum tillage and no-tillage patterns on kernel quality of winter wheat, five tillage patterns were adopted in Longkou city, Shandong Province, for three years. The five tillage patterns were as follows: conventional tillage with no straw turnover, conventional tillage with straw turnover, rotary tillage with straw turnover, serrated disk harrow tillage with straw turnover, no-tillage with straw cover.

为了研究不同土壤耕作模式对冬小麦籽粒品质的影响，采用了5种土壤耕作模式(常规耕作秸秆不还田、常规耕作秸秆还田、旋耕秸秆还田、缺口圆盘耙耕秸秆还田、免耕秸秆覆盖)在山东龙口进行了3年田间试验，测定了冬小麦籽粒蛋白质品质、面团流变学特性和淀粉糊化特性。

Self-sown grass and organic mulching could modify soil environment, increase the organic matter content and soil microorganism.

自然生草和有机物覆盖可改良土壤环境，使土壤中细菌数量和有机质含量增加。

It is concluded that soil solarization with transparent film mulch and cow dung amendment is promising in increasing soil temperature to the extent needed to control Meloidogyne incognita population within 30cm soil depth in the study area.

故覆盖透明膜和添加牛粪可显著提升30cm深度内的土壤温度，利用太阳能加热可望降低土壤中根结线虫种群数量。

A new kind of subsoiler with adjustable wines has been developed and thestructure of soil after subsoiling is also studied,it is found that thissubsoiler can loose whole surface of soil with intervally looseing the deepsoil,making a better seed bed for planting narrow row spaceing crops such aswheat.

分析了可调翼深松铲的入土性能，研究了松后土壤结构，试验发现，利用安装位置较高的可调翼深松铲，可以为小麦覆盖地创造"表层全松底层间松"的土壤结构，这种结构有利于行距较小的小麦等密植作物播深均匀，该深松方法与原理具有新意。

As a result, mulched soil will be cooler in the summertime. And in winter, it may not freeze as deeply as areas without mulch.

其结果是，被覆盖的土壤在夏季会较凉爽，而在冬季，不会让土壤像没有盖土的区域一样冻得那样严重。

The results found water transmissibility coefficient of mulched ground was larger than the contrast and rainfall infiltrated into soil quickly.

结果表明，秸秆覆盖条件下的土壤导水率较高，降雨入渗快，土壤含水率较高。

Pot experiments were conducted to investigate the effects of 4 kinds of organic materials (domestic waste, stem-type plants, strip-type plants, and broad-leaf plants) as mulches to soil water evaporation.

通过室内盆栽试验，研究了生活废弃物、茎秆类植物、条状类植物和阔叶类植物4种有机物材料覆盖土壤表面对土壤水分蒸发的影响。

The saving-water effect of Radish and Cabbage under PFM and appropriate irrigation,and the drought-resisting of radish seedling which seed was soaked by CaCl_2 were systematicly reseached by field observation and the experiment in door.The main results were summaried as follows:The soil temperature of 0~20cm cultivated layer was increased 3-4.5℃ in early growth period was only 1℃ in late growth period by PFM;there was more water saved up to 20.84mm in 0~60cm soil layer by PFM than no PFM in the early growth period of Radish;the yield and water use efficiency of Radish in L4 were exceeded respectively 10.1% and 21.9% of that contrast, the yield and water use efficiency of Cabbage in G4 were exceeded respectively 8.7% and 26.58% of that contrast, under PFM and appropriate irrigation.

主要研究结果如下：地膜覆盖在植株生长前期耕作层平均可增温3～4.5℃，在生长后期增温幅度减小，仅有1℃左右；地膜覆盖在植株生长前期可有效的保持土壤水分，在萝卜生长前期，使0～60cm土层内多储水20.84mm；在覆膜不灌水充分利用自然降雨的条件下生产萝卜，可比裸地正常灌水萝卜增产10.1%，水分利用效率提高21.9%；覆膜只浇一水生产甘蓝，可比裸地正常灌水生产甘蓝增产8.7%，水分利用效率提高26.58%。

The results showed that the soil water content before sowing was obviously improved by the no-tillage and subsoiling, compared to that by the conventional tillage. According to the yield and WUE, treatments could be ranked from highest to lowest in turn as follows: ST, NT and RT.

结果表明；休闲期不同耕作方式对冬小麦播种前底墒具有明显的影响，与传统耕作方式相比，免耕和深松覆盖处理可以显著增加土壤含水率，具有良好的保墒作用；各处理以深松覆盖作物产量和水分利用效率最高，其次为免耕处理，深翻处理效果较差。

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。