植物对于土壤微量元素(硼、锰、钴、锌、铜、铁、钼等)的需要量虽然不多,但对它们的生长、发育、生殖的影响却很大,过剩与不足都能引起地区性生理病害。近几年来,我们在研究黑龙江省春小麦不稔症(也叫不结粒或不结实)的原因及防治中发现,缺硼不仅使糖 Although the demand of plant for the soil trace elements (boron, manganese, cobalt, zinc, copper, iron, molybdenum, etc.) is small, their effects on their growth, development and reproduction are very great. Excess and deficiency can cause the regional Sexual physical disease. In recent years, we study in Heilongjiang Province spring wheat disease (also known as not grain or not) reasons and prevention found that boron deficiency not only sugar