玉米地放养鹅对土壤有机质、pH值和玉米植株、籽实的影响

Effects of herding and raising geese in corn field on the soil organic matter,soil p H value,corn grains and corn plants

为了研究玉米地放养鹅对土壤有机质含量、p H值,玉米植株中粗蛋白、粗纤维含量及玉米籽实中重金属含量的影响,试验选取350只肉鹅放养于不施化肥和农药的玉米地中作为试验组,以施肥玉米地作为对照,待玉米老熟后对土壤有机质、土壤p H值、玉米植株和玉米籽实进行检测。结果表明:养鹅玉米地土壤中有机质含量均高于施肥玉米地,而土壤的p H值低于施肥玉米地,更接近于中性土壤;养鹅玉米地植株中粗蛋白和粗纤维含量均高于施肥玉米地;玉米籽实中重金属含量低于施肥玉米地。说明玉米地放养鹅模式有利于改善土壤肥力,降低土壤p H值,增加玉米植株中粗纤维和粗蛋白含量,降低玉米籽实中重金属含量。

To study the effects of herding and raising geese in corn field on the content of soil organic matter, soil pH value, the contents of crude protein and crude fiber in corn plants, and the contents of heavy metals in corn grains, 350 meat geese were selected in the test. All meat geese were herded and raised in the corn field as the experimental group without applying chemical fertilizers and pesticides, and the corn field with applying chemical fertilizers and pesticides was set as a control group. The soil organic matter, soil pH value, corn plants and corn grains from the two groups were tested when the corn matured. The results showed that the content of soil organic matter in the experimental group was high- er than that in the control group, and the soil pH value in the experimental group was lower than that in the control group, and closer to the neu- tral soil. The contents of crude fiber and crude protein in corn plants from the experimental group were higher than those in corn plants from the control group, and the contents of heavy metals in corn grains from the experimental group were lower than those in corn grains from the control group. The results indicate that the model of herding and raising geese in corn field .is favorable for improving soil fertility, decreasing soil pH value, increasing the contents of crude fiber and crude protein in the corn plants,and reducing the content of heavy metals in the corn grains.