施肥和激素处理对枣树开花座果的影响

通过对枣树施以不同量配比的碳酸氢铵与过磷酸钙的混合肥料以及结合叶面喷施生长素、赤霉素、生长素与赤霉素混合液的方法,研究了不同施肥量和激素处理对枣树的枣吊长、枣股数、枣吊上的枣花数以及座果数的影响。结果表明:适量的施肥处理可提高枣树的开花座果数,其最佳施肥量为氮肥0.8 kg/株,磷肥0.4 kg/株。不同激素处理对枣树的开花座果数有一定的影响,且影响程度各不一样。

Effect of fertilization and hormone on the flowering and fruit setting of Ziziphus jujuba

Through the method of spraying different nutrient ratios of complex fertilizer of ammonium bicarbonate and calcium superphosphate combined with foliar application of auxin,gibberellin and their mixture,the effects of different fertilizer and hormone application on the length of deciduous spur,the number of mother spurs,flowering and fruit setting of Ziziphus jujube were studied.The results showed that,fertilization treatment with appropriate amount could raise the number of flowering and fruit setting of Z.jujube,and the optimum amount of fertilizers was N 0.8 kg/tree and P 0.4 kg/tree.Hormone treatment could influence the number of flowering and fruit setting,and the extent of effect varied against the varieties of hormone.