西桑园
西桑园-
攀西桑园施肥中氮肥比例的教学模型研究后期氮肥比例对不同穗型粳稻品种的效应
Mathematical modeling study on the nitrogenous proportion in fertilizations of mulberry field for Yun mulberry
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攀西地区桑园产量类型与群体结构调查
Types of Mulberry Field Output and Colony Structure in Panxi Region
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攀西地区桑园地膜覆盖技术应用研究
An Initial Report on Film-mulching Techniques in Mulberry Fields in Pan-xi Area