小麦品种烟宏2000测土配方施肥效果分析

烟宏2000是速生丰产的半冬性小麦品种,为了探究该品种的施肥模型,充分发挥烟宏2000的增产潜力,开展烟宏2000测土配方施肥试验,研究不同施肥处理条件下株高、公顷总茎蘖数、公顷穗数、穗粒数、千粒重、公顷产量和肥料利用率。试验结果表明,氮磷钾配方施肥效果最好,在株高、公顷总茎蘖数和千粒重上均显著优于其他处理；无磷区和无钾区表现相当,在株高、公顷总茎蘖数和穗粒数上显著优于无氮区和空白区；无氮区表现最差,仅在株高和公顷总茎蘖数显著强于空白区。理论公顷产量氮磷钾区>无磷区>无钾区>无氮区>空白区,3种肥料的增产效果和对肥料利用率的影响均表现为氮肥>钾肥>磷肥。综上所述,在烟宏2000种植过程中,氮肥发挥最大作用,但配方施肥是最合理的施肥方法。

Effect Analysis of Soil Testing and Formulated Fertilization for Wheat Variety Yanhong 2000

Yanhong 2000 is a semi winter wheat variety with fast-growing and high-yield. In order to explore the fertilization model of this variety and give full play to the yield-increasing potential of Yanhong 2000, a soil testing and formulated fertilization experiment was carried out to study the plant height, total tiller number per hectare, ears per hectare, grain number per ear, thousand grain weight, yield per hectare, and fertilizer utilization efficiency under different fertilization treatments. The results showed that NPK formula fertilization had the best effect, which was significantly superior to the other treatments in plant height, total tiller number per hectare, and thousand grain weight. The performance of phosphorus free and potassium free zones were equivalent,which were significantly superior to nitrogen free and blank zones in terms of plant height, total tiller number per hectare, and grain number per ear.. The nitrogen free zone showed the worst performance with significantly stronger plant height and total tiller number per hectare compared to the blank zone. The theoretical yields per hectare were NPK zone>phosphorus free zone>potassium free zone>nitrogen free zone>blank zone. The yield increase effect and impact on fertilizer utilization efficiency of the three fertilizers were all manifested as nitrogen fertilizer>potassium fertilizer>phosphorus fertilizer. To sum up, nitrogen fertilizer plays the greatest role in the planting process of Yanhong 2000, but formula fertilization is the most reasonable fertilization method.