叶面施肥已被用作植物营养的补充策略,尤其是在具有高产量潜力的作物中。小剂量施用营养素刺激光合作用并提高产量表现。这项研究的目的是评估在大豆和玉米上叶面施用钼(Mo)的效率。处理由补充的存在(+Mo)和不存在(-Mo)组成。植物营养状况,硝酸还原酶(NR)活性,气体交换参数,光合酶活性(大豆和玉米中的Rubisco和玉米中的PEPcase),总可溶性糖浓度,叶片蛋白质含量,射击干物质,枝条氮积累,每株植物的谷物数量,100粒的质量,并对谷物产量进行了评估。对于大豆和玉米,施用Mo增加了叶片NR活性,氮和蛋白质含量,Rubisco活动,净光合作用,和谷物产量。这些结果表明,Mo的叶面施肥可以有效地增强氮代谢和植物对碳固定的响应。从而提高作物产量。
Foliar fertilization has been used as a supplemental strategy to plant nutrition especially in crops with high yield potential. Applying nutrients in small doses stimulates photosynthesis and increases yield performance. The aim of this study was to evaluate the efficiency of foliar application of molybdenum (Mo) to soybean and maize. The treatments consisted of the presence (+Mo) and absence (-Mo) of supplementation. Plant nutritional status, nitrate reductase (NR) activity, gas exchange parameters, photosynthetic enzyme activity (Rubisco in soybean and maize and PEPcase in maize), total soluble sugar concentration, leaf protein content, shoot dry matter, shoot nitrogen accumulated, number of grains per plant, mass of 100 grains, and grain yield were evaluated. For soybean and maize, application of Mo increased leaf NR activity, nitrogen and protein content, Rubisco activity, net photosynthesis, and grain yield. These results indicate that foliar fertilization with Mo can efficiently enhance nitrogen metabolism and the plant’s response to carbon fixation, resulting in improved crop yields.