基于测土配方施肥(TRPF)系统处理的大豆灰色关联度分析

Preliminary Applications of TRPF System of Soil Testing and Fertilizer Recommendation in Sanjiang Plain

为验证三江平原测土配方施肥TRPF系统在大豆施肥技术上的效果,在田间设置肥料效应试验,应用灰色关联度和方差分析法,对2012年不同施肥量大豆6个主要性状的表现进行了综合分析,为系统的下一步升级做准备。结果表明:测土配方施肥处理(T4处理)的产量,节数、分枝数、单株有效荚数、单株粒数及单株粒重表现最好,与其他处理之间均存在着显著或极显著差异,并且测土配方施肥处理产量最高,与对照相比增产30.32%;常规施肥增产14.73%;低肥处理增产8.43%;高肥处理增产2.17%。关联度分析表明,不同施肥处理大豆的6个性状的关联序表现为,单株荚数>单株粒重>单株粒数>节数>株高>分枝数。因此在测土配方施肥的基础上,可以选用多荚型(或多粒型)品种,来提高品种的产量潜力。

To preliminarily test effect of TRPF system in soybean fertilization technology, and set fertilizer experiment in the field, they were made to analyze synthetically performance of soybean＇ s six main characters in different fertilization in 2012, by grey correlation degree and variance analysis, preparing for system upgrade next step. The results showed that the treatment four （treatment of soil testing and fertilizer recommendation） was the best as yield, nodes, branches, pod number, seed number, seed weight per plant, and the different between them reached significant or highly significant. The yield of the TRPF treatment was the highest, increasing 30.32 percent compared with CK, increasing 14.73 percent of regular fertilizing treatment, 8.43 percent of low fertility treatment and 2.17 percent of high fertility treatment. Analysis results of degree of association showed that correlative series of soybean were as follow as pod number〉 seed weight 〉seed number〉 nodes〉 plant height〉 branches per plant, in different fertilization treatments. So, it could chose the soybean cultivars of more pods type （or many seeds type） on the basis of soil testing and fertilizer recommendation, to increase yield potential of variety.