查询词典 alkali soil

For soil acid alkali reaction and have a great impact on physical and chemical properties, but also provide nutrients essential for plant growth media.

对于土壤酸碱反应和理化性质都有极大的影响，也是为植物生长提供养分十分重要的介质。

The key problem is how to overcome alkali in the soil .

关键在于控制土壤里的碱分。

This kind of soil contains much alkali.

这种土壤含碱丰富。

The nitrate content was higher in stem than leaf in harvest anaphase, and higher in acidic soil than in alkali one.

在酸性土壤上莴笋中的硝酸盐含量高于碱性土壤。莴笋采收后期茎的硝酸盐含量高于叶片。

The article explores the composition and property of alkali slag cement -red soil base light wall partition.

研究了碱矿渣水泥－赤泥基轻质隔墙板的组成和性能。

The effect of nitrogen and potassium fertilizers on nutrient quality of two lettuees were different, increasing potassium or nitrogenous fertilizer was more effective in acid soil than in alkali one.

不同施肥处理对两种土壤上科兴3号和双尖莴笋营养品质的作用不一致。在酸性土壤上增施K肥或提高N肥的用量对莴笋营养品质的改善更有效果。

I applied the dynamic-chamber IRGA method (Li-6400) and Alkali Absorption to measure the soil respiration and compared to understand their relationship.

采用Li-cor8100测定土壤呼吸日变化，采用静态气室—碱液吸收法和动态气室—远红外分析仪法(Li-cor6400)测定该地区土壤呼吸的月变化和年度变化，并研究了两种测定方法的相关性。

However, due to its convenience operation and mature technique, the traditional hermetical alkali absorption method is still widely used in scientific researches, especially in researches of soil microbiology.

但传统的密闭吸收法由于其操作简便，方法成熟，仍然被广泛应用于各种科学研究中，尤其是土壤微生物学的研究中。

The test method is to fetch the urea of the same quality and coated material of different quality first, make coating material parcel evenly the urea particle s surface, grant them into the soil, eluviate with the distilled water every 24 hours, collect the eluviationing solution, titrate the eluviationing solution with distillation titrimetric method, that is, add alkali distillation, make the ammonia release out, absorb with boric acid solution, then titrate it with standard acid.

试验方法是称取相同质量的尿素和不同质量的包膜材料，将包膜材料均匀地包裹在尿素颗粒的表面，将包裹后的包膜肥料施入模拟试验的土壤中，每隔24个小时用蒸馏水淋溶，收集淋溶液，用蒸馏滴定法滴定淋溶液，即加碱蒸馏，使氨释放出来，用硼酸溶液吸收，而后用标准酸滴定之。

When water is added in increasingamounts to the normal soil,there is no increase in pH values of the suc-cessive filtrates and the pH of the distilled water is easily obtained,whilstthe pH value of the alkali soils falls very gradually to a ...

水土比例增大时，普通土壤各次滤液的pH 值并不增大，且易于达到蒸馏水的pH 值，反之，碱土的pH 值很慢的降低至pH 7.5。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。