摘要
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;蒙脱石显著降低了土壤速效磷含量,高量有机肥则明显增加了土壤速效磷含量;麦饭石、蒙脱石、硅钙矿和有机肥均能显著提高土壤速效钾含量,牡蛎壳对土壤速效钾含量影响不大。蒙脱石、硅钙矿和有机肥在大蒜生长前期均显著提高了土壤有机质含量,后期则只有高量有机肥比对照有显著增加。麦饭石、蒙脱石和有机肥3种土壤调理剂对土壤pH值有降低作用,而牡蛎壳和硅钙矿两种土壤调理剂对土壤pH值有增加作用。土壤调理剂对大蒜叶枯病有一定减轻作用。5种调理剂与对照相比均有一定增产功效,但只有蒙脱石和高量有机肥增产效果显著。
The experiments were conducted to study the effects of the two different dosage of five different soil conditioners on soil physical chemical properties and yield of garlic.The results showed that five conditioners could all reduce soil bulk density and improve soil porosity.The medical stone could significantly reduce the soil bulk density early,then the montmorillonite conditioner showed the best effect and achieved significant level.In the early garlic growth,the soil alkali hydro nitrogen content was significantly increased for use of high quantity oyster shell,montmorillonite and organic fertilizer,the montmorillonite reduced soil available P significantly and high quantity organic fertilizer increased soil available P obviously.The oyster shell was no impact on available K,while the other four conditioners could all improve the soil available K.Montmorillonite,calcium silicate mineral and organic fertilizer could significantly improve the content of soil organic matter in the early garlic growth,but only high quantity organic matter increased significantly later.The soil pH value was declined for use of medical stone,montmorillonite and organic fertilizer.However,the soil pH value increased by oyster shell and calcium silicon.The garlic leaf blight disease was reduced for application the five conditioners.Compared to the control,the yield could be improvded after application the 5 kinds of conditioners,but only the yields of CI,CII and EII were significantly increased.
出处
《中国土壤与肥料》
CAS
CSCD
北大核心
2013年第3期26-30,共5页
Soil and Fertilizer Sciences in China
关键词
土壤调理剂
大蒜
土壤理化性质
产量
soil conditioner
garlic
physical and chemical character of soil
yield
