soil secondary salinization is one of the major factors which are seriously affecting plant growth and development in greenhouse.
次生盐渍化是造成保护地土壤障碍的主要因素之一。
in the future, the secondary salinization can be avoided as long as the water and salt status of wasted area can be controlled and managed.
今后只要注意灌区水盐状况的调控和管理,就可避免土壤次生盐堿化的发生。
but the secondary salinization in large aren is often formed by simply irrigating with surface water.
而单纯的河水灌溉往往会产生大面积次盐渍化。
soil secondary salinization can be considered as the main factors that influence the stability of new oasis in alluvial plain.
土壤次生盐渍化是影响沖积平原新绿洲稳定性的主要因素。
in our country, the saline-alkali soil is distributed widely and has a large area, adding to the secondary salinization caused by improper cultivation, the salinization of soil becomes more serious.
in the absence the advanced irrigation means, gross irrigation rate was still high, secondary salinization of soil farming areas was also high.
由于没有改变大水漫灌的方式,毛灌定额还很高,所以农耕区土壤次生盐渍化程度还很高。
secondary salinization of soil is an important factor limiting the greenhouse cropping system.
设施土壤次生盐渍化是我国设施农业生产中的一个重要限制因子。
therefore, great attention has been paid to the studies on secondary salinization if greenhouse soil.
有关保护地土壤次生盐渍化的研究一直受到各国学者的普遍重视。
in the region of hanggin banner, land degeneration is very serious due to wind erosion, grassland degeneration, secondary salinization of soil, soil erosion, and the reduction of creature diversity.