多功能有机肥对土壤理化性状及玉米产量的影响

Effects of Multi-functional Organic Fertilizer on Soil Physicochemical Properties and Maize Yield

[目的]研究星硕有机肥对张掖市玉米制种田土壤理化性状及产量的影响。[方法]选取玉米材料父本为昌7-2,母本为郑58进行田间试验,研究不同施肥量(1800、3600、5400 kg/hm^(2))处理对土壤理化性状及玉米产量的影响。[结果]与不施肥对照相比,施用星硕有机肥土壤容重降低了5.11%~11.93%,土壤pH降低了2.54%~4.04%,土壤中有机质、碱解氮、速效磷、速效钾含量分别增加了10.45%~23.24%、17.41%~37.76%、3.51%~11.71%、6.02%~19.50%。[结论] 5 400 kg/hm^(2)施肥量处理的改土和增产效果最优,考虑到成本因素,建议在甘州区玉米制种田中选择星硕有机肥的施肥量为3 600~5 400 kg/hm^(2)。

[Objective] The aim was to study the effect of Xingshuo organic fertilizer on soil physical and chemical properties and yield of maize seed production field in Zhangye city.[Method] A field experiment was conducted with male parent Chang 7-2 and female parent Zheng 58 to study the effects of different fertilization treatments(1 800,3 600 and 5 400 kg/hm~2) on soil physicochemical properties and maize yield.[Result]Compared with the control without fertilization,the soil bulk density decreased by 5.11%-11.93%,soil pH decreased by 2.54%-4.04%,soil organic matter,available nitrogen,available phosphorus and available potassium increased by 10.45%-23.24%,17.41%-37.76%,3.51%-11.71% and 6.02%-19.50%,respectively.[Conclusion] The soil improvement and yield increase effect of 5 400 kg/hm~2 fertilization treatment were the best.Considering the cost factors,it was suggested that the fertilization amount of Xingshuo organic fertilizer should be 3 600-5 400 kg/hm~2 in maize seed production field in Ganzhou district.