几种农作物对垃圾污水中N、P、Cl吸收特性

Uptake Characteristics of Several Kinds of Crops to N、P、Cl Garbage Leachates

用阜阳市区中、西清河垃圾污水培养几种农作物种子,探讨污水培养下幼苗对污水中N、P、Cl等营养盐的吸 收特性．结果表明:菜豆和玉米在萌芽阶段的抗污水胁迫能力要高于上海青和荆荠种子,荆荠和上海青种子虽能萌 芽但不能长成幼苗．从同一种种子萌苗也可以看出两条河流水质的污染状况:西清河水质污染状况比中清河严重．N 和Cl在菜豆和玉米幼苗内都是随着污水浓度升高而增加;但玉米幼苗在自来水、2种污水培养中P的含量却呈现负 增加．菜豆对N、P、Cl元素的吸收率均高于玉米,这表明菜豆对N、P、Cl元素的吸收效果要比玉米好．

This paper discusses the effect of garbage leachates on the shooting of several kinds of crop seeds and growth as well as the uptake characteristics of seedlings on N, P,Cl garbage leachates which are collected in Xiqing River and Zhongqing river in Fuyang city. The results show.. The capacity of anti-pollution in the bean and maize seeds is higher than Shanghaiqing and Jingji seeds. Although the later can shoot in the garbage leachates they can not grow up to seedlings. Then we can find the pollution extent is different in the two rivers by the shooting of seeds.. The pollution extent in Xiqing River is higher in the Zhongqing River and top water. With the heavier garbage leachates, the content of N,CI in two seedlings is increasing , but the content of P in the maize seedlings was reduced in garbage leachates and tap water. The uptake ratio of bean to N,P,Cl was higher than that of maize, This indicates that the uotake effect of bean to N,P,Cl is better than maize..