摘要
采用回归最优试验设计,建立乌龙茶机采茶园施肥数学模型,由此求出N,P_2O_5和K_2O最高产量每hm^2施肥量分别为376.35kg,241.95kg,和149.40kg;最佳经济施肥量为313.05kg,183.90kg,和111.60kg;最佳配比为1:0.58:0.35。同时分析了施肥与茶树经济性状的关系,结果表明,发芽密度、生长量、新梢粗度和百芽重与三要素施肥量相关显著,其它性状与施肥相关不显著,氮肥配施磷、钾肥(尤其配施磷肥)有利于机采茶园树冠的培育。
By means of optimum regression design,the fertilizer methmatieal models of mechanical pluck- hag on Oolong tea was obtained,the results showed that N,P_2O_5,and K_2O application amount per hm^2 on supreme tea yields are 376.35,241.95 and 149.40 kg,and the optimum economic fertilization amounts are 313.05,183.90 and 111.60kg,and their optimum economic recipe rates are 1:0.58:0.35.In the sametime, the relations between fertilization amounts and the economic characters were analysed,they declared that the relations are significant between N,P_2O_5 and K_2O application amounts and bud density,growth increment, new shoot diameter arid 100-bud weight.But the relations are not significant on other characters.It is advan- tageous to cultivate plucking tea when nitrogenous,phosphate and potash fertilizer are applied at proper amounts and ratios.It is important to increase the phosphate rate for mechanical plucking Oolong tea.
基金
福建农学院青年教师基金(甲种)
关键词
乌龙茶
施肥
机采
茶树
Oolong tea
optimized fertilization
machanical plucking
