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土壤侵蚀导致东北黑土退化,生产力下降。以黑河45为试验材料,模拟侵蚀深度为0,10,20,30,40,50,60和70 cm的施肥和不施肥试验设计,采用电感耦合等离子体光谱仪测定大豆籽粒矿质元素,研究了东北黑土侵蚀和施肥对大豆籽粒中10种矿质元素含量的影响。结果表明:土壤侵蚀情况下,大豆籽粒中Ca、Cu、Mg、Mn、Mo、Sr和K的含量有所增加;而Fe、Ni和Zn含量略有下降。除Mo外,单位面积大豆矿质元素含量随土壤侵蚀深度的增加均呈显著下降趋势。施肥使大豆籽粒中Ca、Cu、Fe、K、Mg、Mn、Ni和Zn含量增加,Sr含量不变,Mo含量减小,对Ca、Fe、Mn、Mo和Zn含量的影响程度随侵蚀深度的增加而增大。另外,施肥使单位面积大豆籽粒中绝大多数矿质元素的含量增加,只有Mo含量减少。
Soil erosion led to the degradation of black soil in Northeast China and decreased productivity. Heihe 45 was used as experimental material to simulate the fertilization and non-fertilization experiments of 0, 10, 20, 30, 40, 50, 60 and 70 cm depth. ICP-AES was used to determine the mineral elements in soybean seeds. Effect of Black Soil Erosion and Fertilization on Contents of Ten Kinds of Mineral Elements in Soybean Grains. The results showed that the content of Ca, Cu, Mg, Mn, Mo, Sr and K in soybean grains increased under soil erosion, while the content of Fe, Ni and Zn decreased slightly. Except for Mo, the content of mineral elements per unit area of soybean decreased with the increase of soil erosion depth. The fertilization increased the content of Ca, Cu, Fe, K, Mg, Mn, Ni and Zn, the content of Sr and the content of Mo in soybean grain. The effect on the content of Ca, Fe, Mn, Increase and increase. In addition, fertilization increased the content of most mineral elements per unit area of soybean grain, only the Mo content decreased.