摘要
为了给马铃薯田杂草科学防治和预测预报提供依据,采用空间分布型检验、聚集强度指标检验和线性回归方法研究了马铃薯田苗期扁蓄田间分布型及其抽样技术。结果表明,马铃薯田扁蓄空间分布型呈聚集分布,其理论抽样模型为n=3.8416/D^(2)(3.5077/x-0.59)。
In order to provide basis for potato weed control and prediction.The spatial distribution pattern and sampling technology of Polygonum aviculare L.in potato fields were studied by using spatial distribution pattern test,aggregation intensity index test and linear regression methods.The results showed that the spatial distribution pattern of Polygonum aviculare L.in potato fields was aggregation distribution,and the theoretical sampling model was n=3.8416/D^(2)(3.5077/x-0.59).
作者
李平
LI Ping(Wuwei Agricultural and Technology Extension Center,Wuwei Gansu 733000,China)
出处
《甘肃农业科技》
2021年第12期40-43,共4页
Gansu Agricultural Science and Technology
关键词
马铃薯田
扁蓄
空间分布型
理论抽样模型
Potato field
Polygonum aviculare L.
Spatial distribution pattern
Theoretical sampling model
