西宁市郊菜园土土壤养分状况研究

西宁市郊菜园土土壤养含量较为丰富,属中上水平,东,西郊区菜地土壤养分状况相对较好,但灰渣,石块较多,栽培方式对土壤养分状况有明显的影响。菜园土土壤培肥要以有机肥和无机氮肥为主,并适当加大磷,钾肥的投入,建立城市灰渣,粪便向远郊新菜地施用,提高利用率,保护近郊菜地。

Study on Nutriment Status of Vegetable Field in Xining Suburb

The Vegetable field in Xinning Suburb is rich in soil nutriment, the content of which is above average level. The soil nutriment of vegetable field in southern and western suburb is relatively in a good condition, but there are considerable ash cinder and stones in it. Cultural method has an obvious effect on the condition of soil nutriment. As far as fertility is concerned , we should rely mainly on organic fertilizer and inorganic nitrogenous fertilizer while adding the right amount of fertiphos and potassium fertilizer. In order to raise the utilization ration of fertilizer and protect the vegetable field of immediate suburb , I suggest that the city ash cinder excrement and urine should be applied to the new vegetable field in remote suburb. The essay also states that developing the combination of cultivation with breeding, standardized vegetable base without environmental pollution is of practical significance to the construction of "ninety-five vegetable basket" project.