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稻田套种田菁,是一项广辟肥源,以田养田的好办法。温州市于1974年开始试种,1975年就扩大到13,705亩。田菁是一种一年生高秆豆科植物,鲜茎叶含氮0.52%,磷0.07%,钾0.15%,即每1,000斤鲜草的肥效相当于25斤硫酸铵,3.5斤过磷酸钙,3.1斤硫酸钾。稻田套种田菁,生长30—70天可收鲜草500—3,000斤。田菁的适应性很广,凡是可以种植水稻的地方,都可以套种。现将稻田套种田菁的栽培技术要点介绍如下:
Rice field intercropping Sesbania, is a broad source of fertilizer, field cultivation of a good way. Wenzhou began pilot planting in 1974 and expanded to 13,705 mu in 1975. Tian Jing is an annual high-stalk legumes, fresh stems and leaves 0.52% nitrogen, phosphorus 0.07%, potassium 0.15%, that is, for every 1,000 pounds of fresh grass fertilizer equivalent to 25 kg ammonium sulfate, 3.5 kg superphosphate, 3.1 Kg of potassium sulfate. Paddy Tiancao interplanting, growing 30-70 days can receive 500-3,000 pounds of fresh grass. Tian Jing adaptability is very broad, where you can grow rice, you can interplanting. Now paddy field cultivation techniques Jingjing points are described below: