论文部分内容阅读
试验研究了两个不同用量的5种土壤调理剂(麦饭石、牡蛎壳、蒙脱石、硅钙矿和有机肥)对土壤理化性质和大蒜产量的影响。结果表明,5种调理剂均能降低土壤容重,提高土壤孔隙度:施用前期麦饭石处理的土壤容重显著降低,后期则蒙脱石处理土壤容重降低明显。在大蒜生长前期,施用高量牡蛎壳、蒙脱石和有机肥均显著提高了土壤碱解氮含量;蒙脱石
The effect of five soil conditioner (Maifan stone, oyster shell, montmorillonite, calcium silicate and organic manure) on soil physical and chemical properties and garlic yield was studied experimentally. The results showed that all five kinds of conditioners could reduce the bulk density of soil and increase the porosity of soil. The bulk density of soil treated with maifanite decreased significantly in the early stage of application, while the bulk density of soil treated with montmorillonite decreased obviously in the later stage. In the early stage of garlic growth, application of high amounts of oyster shells, montmorillonite and organic fertilizer significantly increased soil alkali-hydrolyzable nitrogen content; montmorillonite