干旱地区农业研究2017，Vol.35Issue(3)：260-265,6.DOI:10.7606/j.issn.1000-7601.2017.03.40
有机营养土壤改良剂对河西灌漠土理化性质和饲用高粱种植效益的影响
Effects of organic nutrition soil conditioners on physical and chemical properties of irrigated desert soil in Hexi area and economic profits of forage sorghum
摘要
Abstract
In the face of soil hardening,low organic matter,weak water storage and low yield caused by long-term chemical fertilization in Hexi Corridor,Gansu province,an orthogonal experiment was conducted to select the composition for an organic nutrition soil conditioner.A field experiment was taken to study effects of organic nutrition soil conditioners on the physic-chemical properties of irrigated desert soil and economic profits of forage sorghum.The results showed that the effect of raw material for the organic nutrition soil conditioner ranked as follows:specific fertilizer of Sorghum,modi fied furfural residue,water retaining agent and polyvinyl alcohol.The weight ratio of furfural residual,water retention agent,specific fertilizer of forage sorghum and polyving akohol equal to 0.9375:0.0025:0.0563:0.0037 for the best formula.There was a positive correlation between fertilization quantity and soil porosity,moisture capacity,available nutrients,agronomic traits,economic characteristic and yield of forage sorghum.The optimum economical application rate was 24.00 ton per hm2 and the theoretical yield was 3.08 ton per hm2.It could be concluded that organic nutrition soil con ditioners could improve the physical,chemical and biological properties of the soil.In addition,the soil conditioner also increased the profit and yield of forage sorghum in the irrigated desert soil.关键词
有机营养土壤改良剂/灌漠土/理化性质/饲用高粱/种植效益Key words
organic nutrition soil conditioners/irrigated desert soil/physical and chemical properties/forage sorghum/productivity profit分类
农业科技引用本文复制引用
张春梅,闫治斌,王学,闫富海,秦嘉海,程红玉,肖占文..有机营养土壤改良剂对河西灌漠土理化性质和饲用高粱种植效益的影响[J].干旱地区农业研究,2017,35(3):260-265,6.基金项目
科技部国家星火项目“甘肃河西走廊百万亩现代化制种及加工装备技术示范推广”(S2011G100031) （S2011G100031）
甘肃省科技重大专项项目“高粱高效制种及加工生产技术研究”(2015GS05915) （2015GS05915）
