生物有机肥对水稻产量及重金属含量的影响

Effects of Biological Organic Fertilizer on Yield and Heavy Metal Content of Rice

研究探讨了多功能高效生物有机肥对水稻的施用效果。结果表明,基施多功能高效生物有机肥50 kg/667m2,能提高土壤p H值0.41~0.58个单位,降低土壤、稻株和稻米重金属含量,其中稻米镉含量降低37.03%~52.00%,铅含量降低17.31%~40.00%,砷含量降低27.27%~50.00%,能达到较好的土壤改良效果;能显著提高水稻产量,增产率7.30%~17.73%,产值增加81.81~263.52元/667m2,经济效益非常可观,值得大力推广。

This investigation discusses the effect of multifunctional efficient biological organic fertilizer on rice fertilization,the results showed that using the basic multifunctional efficient biological organic fertilizer with 750 kg/hm2 could increase the soil pH in 0.41-0.58 units significantly,and it could reduce the heavy metal content in soil,rice plants and rice as well.The content of cadmium in rice was reduced by 37.03%-52.00%,the content of lead was reduced by 17.3%-40.0%,and the content of arsenic was reduced by 27.0%-36.5%,and the effect of soil improvement was better.It can significantly increase rice yield by 7.30%-17.73%,increased output value by 1227.15-3952.8 yuan/hm2,and the economic benefit is very considerable,so it is worth promoting.