An experiment was conducted to study the effect of microorganism fertilizer on forestation on saline-alkali soil in Daqing City.

對(duì)活性微生物菌肥在鹽堿土壤造林上的應(yīng)用進(jìn)行了初步嘗試日韩欧美精品A片免费看。

It is suggested that the application of microorganism fertilizer to forestation on saline-alkali soil should be popularized.

可以推廣活性微生物菌肥在鹽堿地造林方面的應(yīng)用。

This will be helpful to the study of the saline of the soil.

這對(duì)于研究土地鹽堿化是很有裨益的www久久99～com。

Particularly in the saline-alkali soil, the inhibition against salinity, an increase of 15%~ 30%.

尤其是在鹽堿地上H视频在线观看免费网站，抑制鹽堿危害，增產(chǎn)15%~30%以上影音先锋欧美性爱资源网。

In order to investigate the long-term effect of mulch-drip irrigation on the chemical properties of salt-affected soils by the method of time-space transformation. The characteristics of salinity and salt ions distribution in 0～150 cm soil profile in the fields with corn planted for one year and two years. At the same time, the uncropped saline waste land adjacent to the experimental site was taken as the control.

為了研究長(zhǎng)期覆膜滴灌對(duì)土壤化學(xué)性質(zhì)的影響国产精品无码免费观在线，該文通過時(shí)空轉(zhuǎn)化的方法研究了覆膜滴灌種植春玉米1a和2a的鹽堿地土壤鹽分及鹽分離子在0～150 cm土壤剖面上的分布特征，同時(shí)以試驗(yàn)地附近未種植的鹽堿荒地作為對(duì)照国产高清肏屄AV。

A mass of experiments validated that exploitation and rational utilization of saline shallow groundwater, declining the water level to an optimal depth to reducing water invalid evaporation can increase amount of water resources and storage capacity of aquifer, prevent waterlogging or drought, improve groundwater salinity and control the process of soil salination, improve the eco-environment, alleviate the threat for the resource of fresh water.

大量的實(shí)驗(yàn)證明国产亚洲中文一区二区在线观看，合理開發(fā)利用淺層咸水，使咸水水位降低到合理水平日韩欧美啪啪一中文字暮，可以：避免地下水的無效蒸發(fā)亚洲一区网址，增加水資源量；增強(qiáng)調(diào)蓄能力和抗早防澇能力日本久久枸一；促進(jìn)淺層咸水淡化青春小仙女jk白丝喷白浆，改造鹽堿地，改善生態(tài)環(huán)境黄色视频射了网站；減輕對(duì)淡水資源的威脅免费视频A片在线。

In order to study the variations of fertile island during the process of desertification, the authors investigated and analyzed the soil chemical characteristics beneath and around the tamarisk shrub, the tamarisk δ^13C in saline meadow, tamarisk shrubland and sandy desert landscape in northern Taklamakan Desert, northwestern China.

為探索荒漠化過程中肥島效應(yīng)的變化規(guī)律，選擇鹽化草甸午夜性爽免费一级视频、灌叢及沙漠3種景觀類型a片一区二区在线免费播放，測(cè)定了檉柳灌叢下和灌叢間空地土壤有機(jī)碳免费毛片一区、全氮爱爱免費视频网址、水分含量以及檉柳營養(yǎng)枝δ^13C等指標(biāo)，并用土壤養(yǎng)分的富集系數(shù)來表征肥島效應(yīng)的強(qiáng)弱99re在线观看视频。

The spatial variability of soil salt content, electrical conductivity, pH and sodium adsorption ratio was analyzed by using traditional statistics and geo-statistics in a typical degraded wetland of saline sodic soils.

以蘇打鹽漬土區(qū)典型退化濕地為研究區(qū)久久思思热视频，運(yùn)用經(jīng)典統(tǒng)計(jì)學(xué)和地統(tǒng)計(jì)學(xué)相結(jié)合的方法研究了退化濕地鹽堿化指標(biāo)：土壤電導(dǎo)率、鹽分含量在线国产馆、pH和鈉吸附比的空間變異特征无码高清性爱，繪制了4種指標(biāo)的空間分布圖。

In order to investigate the adaptability mechanism of Ulmus pumila in saline environment distribution characteristics of potassium, sodium, and calcium ions in new leaves, old leaves, new branches and root regetative, of U. pumila under high, low and non-salinity soil were studied.

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Wheat-straw mulching ; Saline-alkaline Soil ; Fertility ; Crop Production ; Effect

麥秸覆蓋欧美偷拍视频xxxx；鹽漬土；肥力激情性爱国内自拍；作物產(chǎn)量人人摸时时操天天爽人人插；影響