甜菜有机碳土壤调控剂的改土培肥效应和对甜菜经济效益的影响

Effects of Soil and Fertilization and Economic Results on Sugar Beet Organic Carbon Soil Conditioner

在甘肃河西内陆的盐化潮土上，采用田间试验方法，研究了有机碳土壤调控剂对盐化潮土改土效应和甜菜的经济效益。结果表明：盐化潮土理化性质、持水量、有机质、速效氮磷钾、甜菜农艺性状和产量随着有机碳土壤调控剂施用量先增长后降低的趋势，盐化潮土容重与pH随着其施用量递增而降低。甜菜有机碳土壤调控剂最佳施用量为24．00t／hm^2。在盐化潮土施用有机碳土壤调控剂，有效的改善了土壤理化性质，提高了甜菜的经济效益。

The field trial was used to research the Effects of soil and fertilization and economic results on Sugar beet organic carbon soil conditionerin Hexi corridor of Gansu. The results showed that physical and chemical properties of soil, water content, organic matter, available N, P and K, beet agronomic character and yieldfirstly and then decreased with theapplication amount of Sugar beet organic carbon soil conditioner, While, Bulk density and Ph decrease as the amount of application increased. The optimum application amount of economic benefit was 24. 00 t/hm2, After applied organic carbon soil conditioner to saline soil in Hexi corridor of Gansu, The soil physical and chemical properties were improved effectively, enzymatic activity and Sugar beet.