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解决耕地缺肥和改良利用盐碱地是发展农业生产极为重要的任务。打渔张灌区魏家试验站于1963年进行了春夏播田菁的试验,结果证明田菁有巩固和提高改良盐碱地的效果,而且能增加土壤有机质,恢复地力,在原来不出苗的盐荒地上种植田菁可亩产鲜茎叶3000余斤,于前茬种植田菁的地上播种棉花,并且是四十年不遇的大涝年,尚较原耕地提高产量近11-45.2%,每亩增产籽棉22.4-93斤。田菁具有耐盐、耐涝、生长快、适应环境力强等特点,能在一般绿肥与禾本科作物难以出苗生长的洼碱地上正常生长。由于它植株高大,枝叶茂密,覆盖密实,能大量減少地表直接蒸发,
To solve the problem of arable land lack of fertilizer and the improvement and utilization of saline-alkali land is an extremely important task in developing agricultural production. Zhangjiakou Fishing Experimental Station Weijia in 1963 conducted a trial of spring and summer sowing seeding, the results show that Sesbania have to consolidate and improve the effect of improved saline-alkali land, but also increase the soil organic matter, restore fertility, the original seedless salt wasteland Soybean cultivation can yield more than 3000 pounds of fresh stems and leaves, sowing cotton on the ground before the cultivation of Sesbania, and is not encountered in 40 years of flood years, but also increased production of nearly 11-45.2% compared with the original cultivation of cultivated land per mu Seed cotton 22.4-93 pounds. Sesbania has the characteristics of salt tolerance, waterlogging resistance, fast growth, strong adaptability to the environment, and the like, and can grow normally on the ground where the green manure and the gramineous crops are difficult to emerge and grow. Because of its tall plants, dense foliage, dense cover, can greatly reduce the direct surface evaporation,