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·实验研究·植物杀虫剂——绿灵防治美国白蛾幼虫药效试验(1.1)……………………………………………落叶松留床苗不同密度与苗木质量关系的研究(1.2 )……………………………………………三倍体毛白场与普通毛白杨的生长比较试验(1.4 )……………………………………………果园
· Experimental Research · Plant Pesticides - Efficacy Test of Lvling against White Chestnut Larvae (1.1) ............................................. (1.2) ................................................... Comparison of Growth of Triploid Whitfield with Populus tomentosa (1.4) ................................. ………………orchard