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根据青海省山旱区新修梯田理化特性，选择作物种类和施肥水平为因素，采用裂区设计组分出９种培肥方式。通过产量分析、土壤养分亏盈状况和经济效益评价，筛选出适宜山旱地新修梯田的培肥途径，新修梯田应采用油菜复种绿肥——春小麦为轮作方式，施肥水平以纯氮９０ｋｇ／ｈｍ２～１２０ｋｇ／ｈｍ２，纯Ｐ２Ｏ５７５ｋｇ／ｈｍ２～９０ｋｇ／ｈｍ２，优质农家肥３０ｍ３／ｈｍ２～４５ｍ３／ｈｍ２。
According to the physical and chemical characteristics of newly-built terraced fields in mountainous and arid regions of Qinghai Province, the types of crops and the fertilization level were selected as the factors. Nine types of fertilizing modes were adopted by the split-zone design group. Through the analysis of yield, the status of soil nutrient deficit and the evaluation of economic benefits, we selected the ways of fertilizing the newly-repaired terraces suitable for mountain dry land. The newly-built terraced fields should use the rapeseed compound green manure-spring wheat as the rotation mode. The fertilization level is 90kg / hm2 ~ 120kg / hm2, pure P2O575kg / hm2 ~ 90kg / hm2, and high-quality farm fertilizer 30m3 / hm2 ~ 45m3 / hm2.