麸酸型有机复混肥对马铃薯产量、品质及养分累积吸收的影响

Effects of Organic Compound Fertilizer of Monosodium Glutamate on Yield,Quality and Nutrient Accumulation of Potato

在灰黄泥田上研究麸酸型有机复混肥对马铃薯产量、品质及养分累积吸收的影响。结果表明：与单施化肥相比，配施有机复混肥产量增幅达4．1％～18．7％，其中以100％麸酸型有机复混肥产量最高。另外，配施麸酸型有机复混肥还能增加马铃薯薯块的干物质重，提高灰份、粗蛋白以及氮、磷、钾含量，但对淀粉含量的影响不一。在经济效益方面，虽然配施麸酸型有机复混肥的马铃薯成本高于单施化肥，但经济效益总体优于施用单施化肥，每666．7m^2较对照增加260．9—350．3元。

A field experiment was conducted in yellow clayey paddy soil to study the effect of organic compound fertilizer of monosodium glutamate on potato. The results showed that, in comparison to straight chemical fertilizer applied, organic compound fertilizers increased potato yield from 4.1% to 18.7%, and the highest yield was obtained in organic compound fertilizers. In addition to organic compound, while adding inorganic fertilizer, potato dry-matter weight was increased, improving the contents of ash, crude proteins, nitrogen, phosphorus and potassium in potato. However, the effect on starch was indeterminacy. In the aspect of economic benefit, the cost was higher than chemical fertilizer, but increased the economic benefit 260.9-350.3 Yuan/666.7m^2.