【摘要】 为了探明环境矿物材料沸石对秦岭山地新增耕地质量的改善效应,设置不同的沸石添加量,通过田间小区试验,对土壤物理化学性质和植物生长指标进行监测研究。结果表明:施用沸石可显著提高土壤水分含量,增强新增耕地土壤抗旱性能,有利于作物水分供给,沸石施用导致了土壤容重的增加;施用沸石有助于土壤难溶态磷向有效态的转化,土壤有效磷含量随沸石添加量的增加而显著增加,低于1 000 kg·hm^-2的沸石添加量对土壤速效钾的贡献作用有限,而沸石对土壤全氮的作用无明显规律性;综合大豆生长指标及土壤理化性质的改善作用可知,2 000 kg·hm^-2的沸石添加量对山地新增耕地土壤质量提升及作物增产潜力最大。更多还原

【Abstract】 In order to study the effect of zeolite on the quality of newly cultivated land in Qinling mountains, different zeolite additions were set up and soil physical and chemical properties, plant growth indicators were monitored through field plot experiments. The results showed that the application of zeolite could significantly increase soil moisture content, enhance the drought resistance of newly cultivated soil, and be beneficial to crop water supply. Zeolite application led to an increase in soil bulk density. The application of zeolite helped the conversion of insoluble phosphorus in the soil to the effective state. The available phosphorus content in the soil increased significantly with the addition of zeolite. The addition of zeolite below 1 000 kg·hm^-2 had a limited contribution to the soil available potassium. The effect of zeolite on soil total nitrogen had no obvious regularity. Based on the improvement of soybean growth index and soil physical properties, it is concluded that the addition of 2 000 kg·hm^-2 of zeolite has the greatest potential for improving soil quality and increasing crop yield in newly cultivated lands.更多还原