In order to reclaim alkali-saline land, we mixed the sandy soil to alkali-saline soil, then evaluated the chemical parameters of mixed soil and the crop seedling response under such grow condition. Sandy land in Horqin, alkali-saline land in Songnen Plain and Liaohe Plain besides watershed ridge of Songnen Plain watershed and Liaohe Plain watershed interlaced and overlapped in mosaic distribution, with an overlapping area up to 3.5 million hm2. It has the potential to be reclaimed as crop land of one million hm2. When 40%-60% of sandy soil was mixed, the salt content which indicated by EC reduced 20%-50%, and ESP reduced 40%-60%. The mixed soil could adapt to many crop's growth, such as corn, sunflower, etc. It is feasible to use sand-covered reclaimed crop land in the study area from theoretical and practical aspect.
ZHOU Dao-wei, TIAN Yu, WANG Min-ling, SONG Yan-tao, ZHANG Zheng-xiang
. Research on "Sand-covered Reclaimed Crop Land" of Alkali-saline Soil[J]. JOURNAL OF NATURAL RESOURCES, 2011
, 26(6)
: 910
-918
.
DOI: 10.11849/zrzyxb.2011.06.002
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