施钼对大豆与间作玉米增加氮素及产量的效果

Effects of Applying Molybdenum to Soybean and Intercroppedg Maize on the Increase of Nitiogen and yield

钼是豆科作物固氮酶复合体组成的必需元素。我国有较多土壤的有效钼含量低,不少研究已证明施用钼肥可使豆科作物明显增产。国外近期的研究指出,豆科作物固定的氮可被间作的高梁、玉米等作物吸收。本文介绍了对大豆与玉米间作体系中施钼肥的研究结果,证明施钼不仅增加了大豆的固氮量及产量,而且还增加了玉米对氮的吸收量与产量。因此,推广应用该措施对粮食增产具有重要意义。

Molybdenum is an essential element consisting of nitrogenase enzyme complex. In our country there are many kinds of soil in which the content of available molybdenum is very low and some field trails have shown applying Mo fertilizer to be able to increase the yields of legume crops obviously. It has been indicated from some research results recently that the nitrogen fixed by legume crops can be absorbed by the intercroppedg crops, such as maize, sorghum etc. A study on application of molybdenum to the intercropping system of soybean and maize has been reported in this paper, which demonstrated that applying Mo not only increased the nitrogen fixed and the yield of soybean, but also the content of nitrogen and the yield of maize in the intercropping system. For this reason, it has a great significance in crop yield increase to popularize this measure.