Fresh root weight of wheat and maize under the treatment of phosphorus application were 94.66 % and 67.67 % higher than those under the no phosphorus application treatment at the jointing stage of wheat ( seedling stage of maize ); 供磷与不供磷相比,在小麦拔节期(玉米三叶期)小麦总根量平均高出94.66%,玉米高出67.67%;
There is no deficiency of phosphorus in human and animal because phosphorus widely distributed in nature. 磷广泛分布于自然界,完全可以满足人体生理所需,一般不存在缺磷现象。
The primary results showed that total dry weight under P-minus condition was determined by phosphorus uptake per plant, and no correlation between phosphorus use efficiency and total dry weight. 初步结果表明,不施磷处理的总干重主要由单株磷吸收量决定,而与磷利用效率无关;
Humic acid and hexavalent chromium have no effect in total phosphorus removal of sewage. 腐殖酸和六价铬对污水中总磷去除没有影响。
The melting nitrogen concentration has no relation to the phosphorus in the soil; 可溶态氮浓度与土壤中氮含量关系不大;