锰是小麦生长发育不可缺少的微量元素之一。盐碱地尤其是石灰性沙质土壤 ,小麦极易缺锰。小麦缺锰 ,表现为叶脉发生黄色条纹 ,进而由黄变白 ,叶尖变褐 ,叶脉仍为绿色 ,上端下垂 ,脆弱易折 ,严重时失绿部分呈焦灼状。在盐碱地种小麦 ,增施适量锰肥 ,一般可增产 1 0 %～1 5 %。目 Manganese is one of the indispensable trace elements of wheat growth and development. Saline soil, especially calcareous sandy soil, wheat is extremely susceptible to manganese deficiency. Wheat lack of manganese, the performance of the yellow veins of the occurrence of yellow stripes, and then from yellow to white, tip brown, veins is still green, the upper drooping, fragile and easy to fold, serious part of the chlorotic part was lost green. In saline-alkali wheat, increase the amount of manganese fertilizer, generally yield 10% ~ 15%. Head