钙硫锌硼肥对龙眼产量及品质的影响

Effects of different calcium,sulfur,boron and zinc fertilizers on yields and quality of longan

2007～2008年在赤红壤龙眼果园进行根施钙、硫肥和叶面喷施硼、锌肥试验,探讨单个矿质元素对龙眼产量和品质的影响。试验结果显示:在同施底肥的条件下,根施钙、硫肥以氧化钙处理效果最好,两年的增产率分别达34.20%和71.70%;其次为石膏处理,两年的增产率分别为14.80%和52.73%;硫磺处理两年的增产率分别为12.84%和39.87%。叶面喷施硼酸溶液两年的增产率分别为26.35%和18.22%,喷施硫酸锌溶液两年的增产率分别为20.08%和33.60%。施用钙、硫、硼、锌肥还能明显改善龙眼果实品质,表现为果形大,可食率高,可溶性糖含量显著提高。

In order to study the effects of mineral elements on the yield and quality of longan, calcium and sulfur fertilizers were applied to the root of longan, and boron and zinc fertilizers were sprayed on leaves of longan planted in latosolic red soil in 2007-2008. The results showed that for calcium and sulfur fertilizers, the effects of calcium oxide were the best in the same condition, and the yield of longan increased by 34.20% and 71.70% in two years, respectively; the effects of gypsum were better than that of sulfur, and the yields of longan in two years increased by 14.80% and 52.73% for gypsum, 12.84% and 39.87% for sulfur, respectively. In 2007-2008, when the leaves were sprayed with boric acid zinc sulfate, respectively, the yield of longan increased by 26.35% and 18.22%, and 20.08% and 33.60%, respectively. Moreover, applying calcium, sulfur, boron and zinc fertilizers could obviously improve the quality of longan, the fruit of longan was larger, the edible rate was higher, and the content of soluble sugar was increased obviously.