闽东南甘薯生产与气象条件关系的研究

Study on the Relation Between the Production of Sweet potato and Meteorological Conditions in Southeast of Fujian

利用１９８３～１９９４年晋江、莆田等地甘薯田间农业气象观测和田间试验的资料，拟合薯块生长、累积速度曲线，得出甘薯生长的关键时段；分析甘薯产量与土壤水分的关系，指出７～１０月间的夏旱和夏秋旱是影响我省甘薯产量的主要气象因子；分析登陆台风次数与甘薯生产年景的关系。最后提出提高甘薯产量的抗旱措施。

Thls poper,based on the agrometeorological data and the sweet potato's field trial in Jinjang andPutian county, during the period from 1 983 to 1 994,it imitated the growth cure of lumps of sweetpotato and its accumunated rate,it was given a critical peried of sweet potato, Analysing the relationbetween the sweet potato's yield and soil moisture,it shows that summer drought or summer- autumndrought in July- October is a key factor for sweet potato's yield.Analysed the ralation betwecn num-bers of landing typhoon and sweet potato's yield harvestFinally, puting forward the measurs to lightenthe harmness of drought.