选用7种不同类型的果袋，在西北高原地区栽培条件下对黄金梨果实进行套袋试验。
The comparative experiments of bagging on Whangkeumbae pear cultivar were carried out with 7 types of fruit bags in Northwest Loess Plateau.
在长期定位试验的基础上，分析黄土高原地区轮作与施肥对苜蓿生产力的影响。
The paper analyzes the effect of rotation and fertilization on alfalfa productivity on the Loess Plateau based on a long-term experiment.
选用黄土高原地区的安塞黄绵土、绥德黄绵土、杨陵粘黄土、杨陵农地耕层土进行人工降雨溅蚀试验 ，研究了降雨特性和土壤结构对雨滴溅蚀的影响。
Simulated rainfall experiments with 3 loessial soils of Ansai, Suide, Yangling, and Yangling arable soil were conducted to evaluate effects of rainfall and soil structure on raindrop splash.
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