新型增值速效肥料养分释放效果及大田试验对比研究

利用水浸法试验对磷酸二铵、颗粒磷酸一铵、氯化钾3种外包硫锌营养元素肥料养分释放情况进行对比。结果表明,浸泡4 h后,外包肥料与空白肥料养分释放量基本一致;在养分最开始释放阶段(浸泡时间1 h),包裹S+Zn比例越大的肥料与空白肥料相比,养分释放越慢;颗粒钾肥包裹S+Zn,与空白肥料相比,差异较稳定,说明钾肥颗粒包裹S+Zn后对养分释放没有太大影响。在大田试验中,富邦硫锌包膜磷铵肥料与美可辛均比不加硫锌的磷酸一铵效果好,说明硫锌能提高作物产量。

Contrast study on effect of nutrient release and field experiment of new type of value added quick acting fertilizer

The effect of nutrient release from coated sulfur zinc fertilizer of diammonium phosphate, granular monoammonium phosphate, KCl is compared by the method of water immersion test. The results show: after soaking 4 h, the nutrient release effect of outsourcing fertilizer and the blank fertilizer is basically the same;At the beginning of the release of the nutrient phase (soaking time <1 h), compared to the blank fertilizer, the greater the proportion of the parcel S+Zn fertilizer, the slower the release of nutrients;Granular potash fertilizer package S+Zn, compared with the blank fertilizer has little difference. It is showed that the nutrient release of potassium fertilizer is not much affected by the S+Zn particles. In the field test, the effect of Forbon ammonium phosphate fertilizer coating sulfur zinc and microessentials are better than the black monoammonium. It showed that zinc could increase crop yield.