Effect of Water-Soluble Fillers of Nitro-Compound Fertilizer on Growth Indicators and Yield of Lettuce
ZHU Zhongkun;FAN Zhilei;LI Shengjun;LI Huamiao;ZHU Rensheng;Henan Xinlianxin Chemical Group Co., Ltd.;
The improvement of water solubility of the nitro-compound fertilizer is mainly made by improving raw material grade, but this causes a significant increase in the cost, and the research on improving the water solubility of the compound fertilizer through water-soluble filler is relatively rare. Taking lettuce as the test object, the growth indicators and yield of lettuce are studied by filling different amounts of water-soluble magnesium sulfate monohydrate in nitro-compound fertilizer. Study results show that by data fitting, the magnesium sulfate monohydrate with mass fraction of 4.42% in the nitro-compound fertilizer has the best yield increasing effect; the nitro-compound fertilizer filled with magnesium sulfate monohydrate with mass fraction of about 2.00% can effectively improve the dry matter utilization efficiency of nitrogen, phosphorus and potassium in the plant, and the growth rate is 18.54% compared with the control.
【CateGory Index】： S636.2