论文部分内容阅读
在水培条件下，分别以Ｋ—Ｐ、Ｃａ２—Ｐ、Ｃａ３—Ｐ、Ｃａ１０—Ｐ、Ｆｅ—Ｐ和Ａｌ—Ｐ作为单一磷源，研究不同形态无机磷酸盐对大豆作物的有效性以及大豆不同品种对其吸收利用的差异。结果表明，大豆对这些无机磷的利用率（％）为Ｋ—Ｐ＞Ｃａ２—Ｐ＞Ｆｅ—Ｐ＞Ａｌ—Ｐ＞Ｃａ３—Ｐ＞Ｃａ１０—Ｐ，而不同形态磷对大豆干物质生产的有效性为Ｃａ２—Ｐ＞Ｋ—Ｐ＞Ａｌ—Ｐ＞Ｆｅ—Ｐ＞Ｃａ３—Ｐ＞Ｃａ１０—Ｐ。大豆品种间的吸收利用率存在差异，湘春９１—１００对４种迟效态磷的利用率比其它品种高０．４～６．３个百分点。磷的利用效率也存在品种间差异，湘春９１—１００、双峰红豆和涟源泥冬黄豆高于湘春３号和桂阳傲泉黄豆。
Under the condition of hydroponic culture, the effects of different inorganic phosphate on the soybean crop and the soybean yield were studied with K-P, Ca2-P, Ca3-P, Ca10-P, Fe-P and Al- Different varieties of its absorption and utilization of differences. The results showed that the utilization rate (%) of soybean was K-P> Ca2-P> Fe-P> Al-P> Ca3-P> Ca10-P, while the effect of different forms of phosphorus on soybean dry matter production Sex is Ca2-P> K-P> Al-P> Fe-P> Ca3-P> Ca10-P. The absorption and utilization rates of soybean varieties were different. The utilization rate of four kinds of late-season phosphorus in Xiangchun 91-100 was 0.4 ~ 6.3 percentage points higher than other varieties. Phosphorus utilization efficiency also exists among different varieties, Xiangchun 91-100, Shuangfeng red beans and Lianyou mud winter soybean is higher than Xiangchun No. 3 and Guiyang Aowei beans.