| In this paper, alkaline soil Huhhot Tumotezuoqi Funchal big brother in the village of Qin town for the study, the use of gypsum and saline-alkali soil humic acid modified corn and field trials. Modified front and rear fixed continuous sampling, measurement and process improvement reflects the effect of soil physical, chemical, and corn growing state index and the effect of improving analysis and evaluation.Firstly related salinization of soil improvement, improvement of saline-alkali soil humic acid and gypsum were combed. Secondly, the causes of saline-alkali soil, endangering improvement measures and the use of gypsum soil humic mechanism, and discussed the system. Test design, test methods for the third paper described. The fourth test data, illustrated by way of a systematic analysis of the research, and to explore the effect of the two substances improve saline-alkali soil. Finally, we conclude the paper and make a prospect.The following research was mainly the result:significantly higher germination rate and yield of silage maize, two control groups germination rate statistics were about 27%, while the rate of emergence of three districts improved group were more than 78%; control group, silage maize and improved group to yield 1382kg silage maize production yield 4200kg. Soil bulk density was significantly reduced,0-20cm saline soil bulk density decreased 0.30g/cm3; 20-40cm saline soil bulk density decreased 0.23g/cm3.Soil pH is worth to a significant decrease,0-20cm soil pH is lowered to 3.19; 20-40cm soil pH decreased 2.88. Significantly reduce soil alkalinity,0-20cm soil alkalinity decreased 0.89; 20-40cm soil alkalinity decreased 0.53.Soil salinity composition changed significantly:Na+, Mg2+, Cl-, CO32-, HCO3- decreased; total salt, total nitrogen, available phosphorus, potassium, organic matter, Ca2+, increased significantly SO42-. |
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