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以12年生脐橙树为试材,通过叶面喷施激素与防裂果素及N、K、P、Ca、B几种元素不同组合处理液,探索对防止脐橙裂果最有效的矿物质营养元素,同时分析叶片N与K的比值及其递增与脐橙裂果的相关性规律,为生产上降低脐橙裂果提供指导。结果表明:树体叶面喷施激素与防裂果素及N、K、P、Ca、B几种元素全面处理组合对防止裂果效果最好,其次为激素与N、K、P、B的混合处理液,对照裂果率最高;通过对叶片部分元素分析,N与K的比值同裂果呈正相关,即比值越高,裂果率越大。
The 12-year-old navel orange tree was used as test material to study the effects of foliar application of hormones, anti-cracking agents and different combinations of N, K, P, Ca and B elements on the prevention of navel orange fruit cracking. At the same time, the relationship between the ratio of N to K and the correlation between the ratio of leaf N and K and the correlation between the ratio of leaf N and K were analyzed. The results showed that the combination of hormones and anti-fission fruit and the combination of N, K, P, Ca and B on tree foliage were the best, followed by the combination of hormone and N, K, P and B The results showed that the ratio of N to K was positively correlated with the split fruit, that is, the higher the ratio, the greater the split fruit rate.