不同肥料类型对直播油菜花期光合及生物学特征的影响(英文)

目的]研究不同类型肥料对油菜的施用效果,探讨提高油菜养分利用率、降低劳动强度的肥料类型。方法]采用控释肥、多功能肥、习惯施肥等不同类型肥料处理,研究了花期油菜对不同类型肥料在生长、光合、荧光等方面的特征响应以及不同类型肥料对油菜产量的影响。结果]控释肥和多功能肥料能够显著提高花期油菜株高、根茎粗、地上部干重、叶绿素、净光合速率、非光化学淬灭系数(NPQ)等生物学、光合及荧光参数,从而增加了油菜的抗性和产量。结论]控释肥和多功能肥料均能提高肥料利用率,对油菜增产具有显著效果,但多功能肥料的作用效果优于控释肥。

Impact of Fertilizer Types on Photosynthetic and Biological Effects of Direct-seeded Brassica napus at Flowering Stage

Objective] The aim was to investigate the effects of fertilizer type on direct-seeded rapeseed and to explore effective fertilizing.Method] Four treatments including different types of fertilizers were set in the test.Growth,photosynthesis and chlorophyll fluorescence parameters at flowering stage such as plant height,stem diameter,shoot and root dry matter,net photosynthesis,light energy conversion efficiency(Fv/Fm) and SPAD value,were investigated.The effects of fertilizer treatments on the yield of rapeseed were evaluated as well.Result] Both multi-functional fertilizer and controlled release fertilizer could improve plant height,stem diameter,shoot dry matter,SPAD value,net photosynthesis,non-photochemical quenching(NPQ),etc.,which helped increase yield and stress resistance.Conclusion] Both multi-functional fertilizer and controlled release fertilizer could improve yield significantly while multi-functional fertilizer(MFF) was better than controlled release fertilizer(CRF).