论文部分内容阅读
采用田间试验方法,研究了在锌同一施用量条件下,有机酸-磷配合施用对紫花苜蓿生长及对磷锌元素吸收的影响.结果表明,施磷肥和有机酸(富啡酸)可显著提高苜蓿鲜草产量,且产量随施磷量的增大而增大,其中P2FA2处理年鲜草产量达到最大值57.43 t.hm-2;各茬苜蓿中磷含量均随施磷量的增加有先升后降的趋势,均以P1FA1,P1FA2处理的磷含量最高,但并不随FA施用量的增加而增加;苜蓿体内锌含量随施肥量的不同并无明显变化规律.
A field experiment was conducted to study the effects of organic acid-phosphorus application on alfalfa’s growth and phosphorus and zinc absorption under the same zinc application rate.The results showed that phosphorus and organic acid (fulvic acid) could be significantly increased Alfalfa fresh grass yield, and the yield increased with the increase of phosphorus application, which P2FA2 fresh grass production reached the maximum of 57.43 t.hm-2; each stubble alfalfa phosphorus content increased with the amount of phosphorus After increasing and then decreasing, the content of phosphorus in P1FA1 and P1FA2 was the highest, but did not increase with the increase of FA. There was no obvious change in the content of zinc in alfalfa with the different amount of fertilizer.