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采用不同施磷水平和种植方式的 2因素裂区试验设计 ,研究了油菜和紫云英间混作与磷素的互作效应。结果表明 :施磷对油菜苗期生长有促进作用 ;油菜地上部干物质积累以油菜与紫云英混作处理的增加较多 ,间作的次之 ,而地下部则相反 ;油菜叶片、角果叶绿素含量和可溶性糖含量均以油菜与紫云英混作处理的较高 ,可见与紫云英混作的油菜光合效率和抗寒能力较强 ;油菜单株产量也以油菜与紫云英混作处理为最高 ,比间作处理增加 3 3 .4% ,比油菜单作处理增加 13 % (施磷水平 ) ;但由于间作、混作处理油菜的种植密度小 ,所以混作和间作处理的油菜群体产量均比油菜单作产量降低 ,其中混作处理的减产幅度较小 ,间作的减产幅度较大。因此 ,采用免耕油菜与紫云英混作种植 ,在保证油菜合理密度的前提下 ,既能获得较高的油菜籽产量 ,又能得到大量的有机肥料 ,对农业的可持续发展有重要意义。
A two-factor fracturing design was used to study the interaction between phosphorus and rape in the rape field. The results showed that phosphorus application promoted the seedling growth of rapeseed. The dry matter accumulation in rapeseed increased with rapeseed and Chinese milk vetch, while the intercropping was the second, while that in underground part was opposite. The rape leaves, Content and soluble sugar content of rapeseed were mixed to deal with the high, we can see that mixed with the Chinese cabbage and rapeseed photosynthetic efficiency and ability to resist cold; rapeseed single plant yield also rape mixed with the highest treatment , Increased by 33.4% compared with intercropping and increased by 13% compared with oilseed rape (phosphorus application). However, the yield of intercropped and intercropped rapeseed was lower than that of oilseed rape For the production to reduce, of which the reduction of mixed processing less, intercropping a larger reduction in production. Therefore, using no-tillage rape mixed with asparagus, under the premise of ensuring the reasonable density of rapeseed, not only high yield of rapeseed but also large amount of organic fertilizer can be obtained, which is of great significance to the sustainable development of agriculture.