Application of Special Controlled Release Fertilizer in Direct-seeding of Rapeseeds

In the east of Hunan Province, the research introduced new-type special controI ed-reIease fertiIizer for rapeseed, ＂Yishizhuang＂, and expIored its appIications in direct-seeding of rapeseed production. The resuIts showed that the appIication of special controI ed reIease fertiIizer for rapeseeds avoids earIy decIine of rapeseed resuIting from fertiIizer Ioss by one-off appIication, improves the number of green Ieaf before winter, and extends photosynthetic Iifespan of pods, which significantIy increases yields. What＆#39; more, with higher output-input ratio, the fertiIizer takes ad-vantages in saving cost, Iabor and increasing yield.

缓释型油菜专用配方肥在直播油菜生产上的应用研究

在湘东地区的直播油菜生产中引进新型缓释型油菜专用配方肥"宜施壮",对其在直播油菜生产上的应用效果进行了研究。结果表明,施用缓释型油菜专用配方肥,避免了普通一次性施肥因肥料流失而导致的油菜后期早衰,且对促进冬前绿叶数的增加,延长角果表层叶绿素的光合寿命效果明显,增产效果显著,且投入产出比高,在省工、节本、增产等方面存在着一定的优势。