控释肥与水分耦合对红丽海棠品质及树体营养状况的影响

以红丽海棠为试验材料,研究控释肥与水分耦合对其生长指标(新梢长度、叶片面积、干径)、花朵中的花色苷含量、果实品质指标(横径、纵径、果柄长、单果重、可滴定酸含量、可溶性糖含量、可溶性蛋白含量)以及叶片中氮、磷、钾含量的影响。结果表明:包膜水肥耦合能够明显促进红丽海棠的生长,增加花朵中的花色苷含量、提高果实品质以及叶片中的氮、磷、钾含量,而包膜控释肥与适量的水分协调效果更佳。

Effects of Coupling between Controlled-release Fertilizer and Water on the Quality and Plant Nutrient Status of Malus spectabilis cv Red Splender

The effects of coupling between controlled-release fertilizer and water on the growth indices（length of shoot,blade area and stem diameter）,anthocyanin content in flowers,index of fruit quality（horizontal diameter,vertical diameter,length of stalk,single fruit weight,titratable acid content,soluble sugar content and soluble protein content）,and the contents of nitrogen,phosphorus and potassium in leaves of Malus spectabilis cv Red Splender were studied.The results showed that the coated coupling between controlled-release fertilizer and water could significantly promote the growth,increase the anthocyanin content in flowers,improve the fruit quality and the contents of nitrogen,phosphorus and potassium in leaves.However,the effects of coated controlled-release fertilizer coordinated with appropriate water was better.