关键词: 人工植被恢复, 人工植被恢复, 风沙土, 土壤效应

Abstract: A series of research in exporting green asparagus was mad in variety filtering, making use or mixed fertilizer according to prescription, preventing and curing plant diseases and insect pests etc.New cauliflower variety with good quality and high yield and its safety produce technology were mastered. Green asparagus in demonstrated area and usual area wsa compared. The result showed that 10.1-11.6percent was increased on the rate of merchandise, 10.87%~23.91% was decreased on dosage of fertilizer, 25.12%~49.28%was decreased on dosage of pesticide,23811~40552.5yuan/hm2 was increased on income.12 kind of poisonous and harmful materials in exporting the caulifower safety produce demonstrated area deereased clearly compared with standed, sucd as heavy metals, chemical pesticide, nitrate or second nitrate etc.