硝基复合肥水溶性填充物对生菜生长指标及产量的影响

Effect of Water-Soluble Fillers of Nitro-Compound Fertilizer on Growth Indicators and Yield of Lettuce

硝基复合肥水溶性的改进主要通过提高原料品级进行,但会造成成本大幅上升,而通过水溶性填充料改进复合肥水溶性的研究相对较少。以生菜为试验对象,对硝基复合肥中填充不同量水溶性一水硫酸镁对生菜生长指标及产量进行了试验研究。研究结果表明:通过数据拟合,在硝基复合肥中填充质量分数4.42%一水硫酸镁具有最优的增产效果;在硝基复合肥中填充质量分数2.00%左右一水硫酸镁能有效提高植株体内氮、磷、钾干物质利用效率,与对照相比增长率为18.54%。

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.