摘要
通过3年田间试验,研究了不同施肥处理对玉米产量及土壤养分含量的影响。结果表明,氮、磷、锌及有机肥(M)配施均有显著的增产作用,各施肥处理比对照增产平均达3 387.0～5 473.0 kg.hm-2,增产率平均为48.0%～77.5%,其中N240 P150 M15 000处理与N240 P75 M15 000处理的增产效果最好,分别为12 536.0 kg.hm-2和12 438.8 kg.hm-2;第一年施P150 kg.hm-2,第二年至第三年减半施磷后对玉米产量没有显著影响,且土壤速效磷含量能够稳定在较高水平;不同肥料配施能显著提高土壤养分含量,改善土壤肥力。
The effect of different application methods of fertilizers on maize yield and soil nutrients was studied by 3-year field experiment. The results showed that N,P,Zn and organic fertilizer（M） all increased the maize yield significantly by 3 387.0- 5 473.0 kg·hm-2, and the increasing rates were from 48.0%～77.5%; treatments of N240P150M15 000 and N240P75M15 000 had the best effect,and the yields were 12 536.0 kg·hm^-2 and 12 438.8 kg·hm^-2 respectively. After 150 kg·hm^-2 P was applied in the first year,decreasing P application by 50% didn＇t influence maize yields significantly in the second year and third year,the soil available P still kept high amount. Application of mixed fertilizers increased soil nutrients and improve the soil fertility.
出处
《湖北农业科学》
北大核心
2009年第5期1086-1088,共3页
Hubei Agricultural Sciences
基金
宁夏自治区自然科学基金项目(NZ0863)
关键词
施肥处理
玉米产量
土壤养分
fertilizer treatments
maize yield
soil nutrient
