The application of zeolite (urea zeolite) combined with dolomite was best in terms of crop yied and soil amelioration.
沸石（尿素沸石）与白云石配合效果好，是改良酸性红黄壤有效途经。
Soil amelioration and ample supply of nutrients in the form of fertilizers is needed to convert poor soils into productive agricultural land.
土壤改良和增施肥料可使这些土壤逐步转变成具有农业生产力的土壤。
The experimental results have come up with a new manner for how to making full use of straw as a kind of fertilizer for the sake of the soil amelioration.
该结果为提出新的能最大效益发挥秸秆改良土壤作用的秸秆还田方式提供了一定的理论基础。
The results indicated that the effect of mixed masson pine and oak forest on soil amelioration was the best, that of grass was the second and the pure masson pine forest was the worst.
结果表明：松栎混交林对土壤的改良效果最好，草地次之，马尾松纯林则较差。
Feasibility of sewage sludge compost of TEDA sewage Treatment Plant using on saline soil amelioration in coastal area was analyzed. Potential problems and relevant solutions were presented.
分析了天津经济技术开发区污水厂污泥堆肥在开发区内盐渍土改良的可行性，并对可能产生的问题提出了相应的对策。
Based on infiltration capacity curve, the paper demonstrates the amelioration of soil infiltration capability under the soil and water conservation measures from theoretical and experimental analysis.
从土壤水分下渗能力曲线出发，从理论和实验分析两方面说明水土保持措施下土壤入渗性能的改良作用。
It shows that the yield improvement is mainly due to the soil nutrient amelioration (especially nitrogen nutrient) and the interaction of mutual supplement of N and P nutrient.
指出杨树刺槐混交林生产力提高主要是因为林地土壤养分（特别是N素养分）的极大改善及树种间N、P养分的互补。
Withered branches and dead leaves in the forest play an important role in amelioration of soil, interception of rainfall, reduction of splashed erosion of raindrop and control of soil loss.
林地枯落物对改良土壤、截持降雨、减少雨滴溅蚀、防止水土流失等都具有重要作用。
The results Showed that soil organic matter increased 0.023% after the synthetical amelioration method was used to it. The total N increased 0.087%.
结果表明，采取改垄向、带状间作、机械灭茬、增施农肥、配方施用化肥等综合培肥措施后，土壤有机质净积累0．023％，全氮净积累0．087％。
The studies of the soil properties suggested : (1) the bulk densities of the soils decreased and the general porosity of soil increased after amelioration;
两个试验田改良后土壤性质定量研究表明：（1）土壤容重降低，土壤总孔隙度增加；
Ardealite, a water residue from phosphate fertilizer factories, has been successfully used in the amelioration of alkaline soil as a kind of chemical amendment.
磷石膏是磷肥厂废渣，做为化学改良剂已成功的用于碱土改良。
Ardealite, a water residue from phosphate fertilizer factories, has been successfully used in the amelioration of alkaline soil as a kind of chemical amendment.
磷石膏是磷肥厂废渣，做为化学改良剂已成功的用于碱土改良。
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