含钛高炉渣叶面肥的大豆栽培实验研究

Application Effects of Foliar Fertilizer Synthesized from Titanium-bearing Blast Furnace Slag on Soybean

以由含钛高炉渣制备的含有植物营养元素氮、硅、硫、钾、镁、铁和钛的叶面肥为实验材料,通过大田栽培实验研究该叶面肥对大豆生长状况、产量、性状、叶片的氮、磷和钾含量,籽粒的氮、磷、钾、蛋白质、淀粉和重金属含量等的影响.结果表明:该叶面肥的施用使大豆生育期缩短2 d;产量、百粒质量、株高、节数、叶干质量、叶片的叶绿素含量以及籽粒的氮、磷和钾含量显著增加;蛋白质和淀粉含量略有增加;该叶面肥的施用未导致重金属元素钒和铬在大豆体内的富集.

A cultivation experiment with soybean was carried out in order to evaluate the application effects of foliar fertilizer synthesized from titanium-bearing blast furnace slag, which contains such nutri- tional elements as nitrogen, silica, sulfur, potassium, iron, titanium and magnesium. The effects of foliar fertilizer on growth situation, character, yield, contents of N, P, K in leaf, contents of N, P, K, protein, am- ylum and heavy metals in grain were investigated by cultivation experiment. The results showed that the application of foliar fertilizer shortened soybean growing period by 2 days, made the yield, the plant height, the number of knot, the weight of dry leaf, the weight of per 100 grains, chlorophyll content, con- tents of N, P, K in grain significantly increasing, and made the contents of protein and amylum slightly increasing. In addition, vanadium and chromium are not enrichment in grain of soybean.