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宁波地区的鄞、奉等县是我省紫云英留种区之一。由于留种技术的改进,种子产量有所提高,并出现亩产突破50公斤的高产田块。但是,历年来产量波动较大,不够平稳,这与气候条件有着密切相关。为了找出影响产量的关键时期及其气候因子,为制定丰产技术措施提供参考,我们作了初步探讨。种子产量的相关关系和回归关系。研究方法本文引用郸县1955一1983年留种紫云英平均亩产和相应年份的气象资料。统计分析留种紫云
Ningbo, Yin, Bong and other counties are one of the remaining areas in our province. Due to the improvement of the technology for seed-saving, the yield of seeds has been raised and the high-yielding field with a yield of 50 kg per mu has emerged. However, over the years, the output has fluctuated widely and not stable enough, which is closely related to climatic conditions. In order to find out the key period affecting the yield and its climatic factors, we provide a reference for the formulation of high yield technical measures. Correlation and regression of seed yield. Research Methods This article refers to the meteorological data of the average annual output of asparagus and the corresponding years of the 1955-1983 species in Dan County. Statistical analysis of remaining Ziyun