滴施液体肥对甜玉米生长、产量及品质的影响

Effects of Drip Irrigating Liquid Fertilizer on Growth,Yield and Quality of Sweet Maize

在滴灌施肥条件下研究液体肥料对甜玉米生长、产量及品质的影响。结果表明,滴施液体肥料处理甜玉米的地上部生物量、株高、茎粗、叶长、叶宽等生长指标明显高于常规灌溉施肥处理;与常规灌溉施肥相比,滴施液体肥可明显提高甜玉米对氮、磷、钾的吸收量;滴施液体肥处理甜玉米的穗重、穗长、穗粗、百粒重、行粒数、产量、糖度分别比常规施肥处理高15.1%、2.1%、8.5%、12.3%、6.8%、10.0%、11.7%。滴灌施用液体肥可明显促进甜玉米的生长,提高养分的累积量,从而提高产量和改善品质。

The effects of drip irrigating liquid fertilizer on growth,yield and quality of sweet maize were studied.The results showed that the biomass,plant height,stem diameter,leaf length and width under the drip irrigating liquid fertilizer treatment were significantly higher than that under conventional irrigation and fertilization treatment.Compared to conventional irrigation and fertilization,drip irrigating liquid fertilizer could obviously enhance the nitrogen,phosphorus and potassium content of sweet maize.In terms of yield and quality of sweet maize,the ear weight,ear length,ear diameter,100-grain weight,kernel weight per row,yield and sugar content of sweet maize under drip irrigating liquid fertilizer treatment were increased 15.1%,2.1%,8.5%,12.3%,6.8%,10.0% and 11.7% respectively than that under conventional irrigation and fertilization treatment.In summary,the drip irrigating liquid fertilizer could significantly enhance the growth and accumulation of nutrients for sweet maize,so as to improve the yield and quality of sweet maize.