玉米配方施肥增效研究

Increasing Effect of Formula Fertilization on Maize

为了印证玉米配方施肥效果,引导农民采用配方施肥技术,达到节本增效,提高产量,增产增收的目的,在绥阳县宽阔镇开展玉米配方施肥与常规施肥的对比示范。结果表明:配方施肥区玉米生长后期籽粒生长更为充分,表现为配方区玉米行粒数多于常规施肥区,因而产量更高,比常规施肥增产9.40%。经济效益上,经核算,配方区比常规区增收1 279.26元/hm2(按本地计量习惯折算为82.28元/667m2)、新增投产比4.47,即新增1元的投入可新增4.47元的产出,也即净增3.47元的收益。配方区实收产量达到了目标产量指标,表明所采用的配方施肥参数贴进实际,可以推广应用。常规施肥确有其局限性,养分配比失衡,对产量的形成有影响,需要进行改进。

To proof the effect of fertilization on maize, and guide farmers to adopt fertilization technology to achieve efficiency of production, the purpose of improving the yield, increase production, maize formula fertilization and contrast demonstration conventional fertilization was carried in Kuankuo town, Suiyang county. The results showed that the maize grain at growth of post--formula fertilization stage is more fully, kernels per row of maize in demonstration area is more than conventional fertilization, and thus higher yields than conventional fertilization yield by 9.40% . The economic benefits in accounting, it＇s 1279. 26 yuan / hm2 higher than conventional zone （according to local metering habits converted into 82.28 yuan / 667m2 ）, the new production ratio 4.47, which will invest an additional 1 yuan can get 4.47 yuan of new capacity out, that is a net increase of 3. 47 yuan gains, while, output of formula fertilization reached the target yield index, it＇s indicated that formula fertilization parameters can be use into practice widely, conventional fertilization does have its limitations, nutrient ratio imbalance, impact on the formation of the yield, the need for improvement.