论文部分内容阅读
本试验将复合生物肥料M-14与基质、常规肥料一次性施入各小区,采用对越冬期小麦根部胞囊线虫侵染情况统计、成熟期小麦基本生物学性状测量、收获期土壤小麦禾谷孢囊线虫有效孢囊数的筛查统计以及测产结果分析等方法对复合生物肥M-14在田间条件下抗小麦禾谷孢囊线虫及增产效果进行了研究。结果表明,施750 kg/hm~2复合微生物肥料M-14,不仅能有效增加小麦株高、茎粗、穗长、公顷穗数及千粒重,并且与空白对照相比增产14.3%,增产效果达极显著水平(P<0.01),而且还能显著地减少胞囊线虫侵染率和收获时土壤中有效孢囊数,与空白对照、常规复合肥、基质处理组相比其侵染率分别减少43.4%、70.8%、65.9%,与对照相比有效孢囊数减少了97.59%,与其他各处理相比差异极显著(P<0.01),从而降低小麦胞囊线虫发病级别和发病指数,有效地防止小麦禾谷孢囊线虫病发生。因此,施复合生物肥料M-14既能抗小麦孢囊线虫病又能增产,为复合生物肥料M-14的推广应用奠定了理论基础。
In this experiment, the compound biological fertilizer M-14 and the substrate, the conventional fertilizers were applied to the district at a time, the winter cytoplasm cyst nematode infection over the winter statistics, the basic biological characteristics of mature wheat, harvest wheat soil at harvest Cyst nematode number of effective cysts screening statistics and test results and other methods of composite bio-fertilizer M-14 in field conditions against wheat cereal cyst nematode and yield-increasing effect were studied. The results showed that application of 750 kg / hm 2 composite microbial fertilizer M-14 not only increased wheat plant height, stem diameter, spike length, spikes per hectare and 1000-grain weight, but also increased yield by 14.3% compared with the control (P <0.01), but also significantly reduced the infection rate of cyst nematode and the number of effective cysts in the soil at harvest. Compared with the blank control, conventional compound fertilizer and matrix treatment group, the infection rates decreased significantly 43.4%, 70.8% and 65.9%, respectively. Compared with the control, the number of effective cysts decreased by 97.59%, which was significantly different from other treatments (P <0.01), which reduced the incidence of cyst nematode and the disease index To prevent the occurrence of wheat cereal cyst nematode. Therefore, Shihuo compound fertilizer M-14 not only can resist wheat cyst nematode disease but also increase yield, which laid a theoretical foundation for the popularization and application of compound biological fertilizer M-14.