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pen guan xiao zhi shi
Author(s): 
Pages: 21
Year: Issue:  10
Journal: Farm Machinery

Keyword:  作物苗期比例关系试验结果最优工况土地平整地面坡度出水量运行方式生长盛期上壤;
Abstract: <正>1.根据科学试验结果,土壤的许可喷灌强度与雨滴直径、喷灌定额成反比例关系.为了尽可能提高喷灌劳动生产率和喷灌质量,厂家在生产喷头时,应每个喷头配带大、中、小三种口径的喷嘴.在作物苗期
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