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作 者:陈志坚[1]
出 处:《江西农业学报》2006年第6期6-9,共4页Acta Agriculturae Jiangxi
摘 要:应用三因素五水平二次正交旋转组合试验设计方法,研究了“闽甜107”的播种期、种植密度和施氮量对产量及主要性状的影响,建立了相应的数学模型,得出3个因素对产量的作用大小:施氮量〉播种期〉种植密度,并优选出产量高于817.65kg/667m^2的栽培措施:播种期4月1~7日、种植密度3720~3940株/667m^2、氮肥施用量16.75-19.75kg/667m^2。Quadratic orthogonal rotation design with three factors and five levels was used to study the effects of sowing date, planting density and application rate of nitrogen on the yield and main characters of "Mintian 107". The results showed that three fac- tors could be arranged as follows according to their effects on the field: application rate of nitrogen 〉 sowing date 〉 planting density. The optimum comprehensive cultivated model for high yield ( 〉817.65kg/667m^2 ) was concluded as follows: sowing date was on the 1st - 7th of April, planting density was 3720 - 3940 plants/667m^2, and application rate of nitrogen was 16.75 - 19.75kg/667m^2.
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