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位于甘肃河西走廊的凉州区是2006年4月经中国绿色食品协会批准、在西北干旱内陆地区建立的首批五十个国家重点绿色农业示范区之一,本研究以绿色农业理念为基础,通过大范围调查取样、测试分析,对绿色农业示范区内耕地土壤肥力状况进行综合分析评价,并对比分析了栽培模式对土壤质量的影响,设施栽培土壤有机质低于大田土壤,而全氮、全磷、全钾、碱解氮、有效磷、速效钾均高于大田,全盐量远远高出大田4倍。
Liangzhou District, located in Hexi Corridor, Gansu Province, was one of the first batch of 50 national key green agricultural demonstration zones approved by China Green Food Association in April 2006 in the arid inland region of northwestern China. Based on the concept of green agriculture, Through a wide range of sampling, testing and analysis, a comprehensive analysis and appraisal of the soil fertility status of cultivated land in the green agricultural demonstration area was carried out. The effects of cultivation modes on soil quality were compared and analyzed. The soil organic matter of the cultivated cultivated soil was lower than that of the soil in the field. Phosphorus, total potassium, alkaline hydrolysis nitrogen, available phosphorus, available potassium were higher than the field, the total salt was 4 times higher than the field.