不同肥料对河西走廊日光温室土壤理化性质和番茄产量的影响

The Effects of Different Fertilizers on Physical and Chemical Properties of Soil and Yield of Tomato in Hexi

系统研究不同肥料对河西走廊灌漠土理化性质和保水性能的影响。结果表明,施用猪粪能明显改善土壤的理化性状,提高土壤的蓄水功能,与不施肥对照(CK)比较,0～20cm土层体积质量降低0.13g/cm3;总孔隙度、毛管孔隙度、非毛管隙孔度、>0.25mm团粒结构分别增加4.91%、1.48%、3.43%、6.14%;土壤有机质、碱解N、速效P、速效K、阳离子交换量(CEC)分别增加4.38g/kg、2.60mg/kg、5.60mg/kg、14.49mg/kg、5.92cmol/kg;土壤贮水量增加29.58m3/hm2;番茄单果质量、单株果质量、产量分别增加17.26g、0.36kg、11.79t/hm2。经LSR检验,处理间的差异达到显著和极显著水平。

In this paper, the effects of different fertilizers on physical and chemical properties of soil in Hexi were researched. The results indicated that the excrements of pigs can significantly improve physical and chemical properties and water storage capacity of soil. Compared to the control, the unit mass was reduced by 0.13 g/cm3 in 0-20 cm soil layer, but the total porosity, capillary porosity, non-capillary porosity and soil aggregate structure（diameter 〉0. 25 rnm） increased by 4. 91%, 1.48%,3.43%, 6.14%, respectively. Soil organic matter, alkali hydrolysis N, rapidly available P, rapidly available K and CEC increased by 4.38 g/kg, 2.60 mg/kg, 5.60 mg/kg, 14.49 mg/kg, 5.92 cmol/kg, separately. Soil moisture storage increased by 29.58 m3/hm2. Single fruit mass, the fruit yield per plant, the yield increased by 17.26 g, 0.36 kg and 11.79 t/hm2 , respectively. The effects of different treatments are significant.