番茄专用基质缓释肥料研制及其生物学效应

应用不同的胶粘剂制备了三种基质缓释肥料，通过缓释效果和安全性评价，筛选出基质缓释肥料2作为番茄专用基质缓释肥料。研究了番茄专用基质缓释肥料的生物学效应，结果表明：番茄专用基质缓释肥料提高了各个生育时期尤其是结果后期番茄植株的根系活力；增加了后期产量所占比例，极显著地提高了果实产量；既提高了果实糖／酸比和维生素C含量，又降低了果实硝态氮含量；同时，大幅度提高了氮素的利用率。

Preparation of special matrix-based fertilizer for tomatoes and its biological effects

Different cementing agents were used to prepare three type matrix-based fertilizers. After estimating the slow release capability and the security, matrix-based fertilizer 2 was screened out for tomato production. The biological effects of special matrix-based fertilizer on tomatoes were studied, the results are as follows: when special matrix-based fertilizer for tomato was applied. Root activity of tomato was improved at all growing stages, and the improvement was higher at latter sage. The fruit yield was increased evidently because it is propitious to form yield at latter stage. The ratio of soluble sugar to organic acid, the vitamin C content in tomato fruits were all increased, but the nitrate content in tomato fruits was decreased. At the same time, the utilized efficiency of nitrogen in special matrix-based fertilizer for tomato was enhanced evidently.