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一、硼肥对作物的效应硼(B)是作物所必需的微量营养元素,双子叶植物的含硼量,一般比单子叶植物高。硼以 BO_3~3-阴离子状态被植物吸收,它一旦进入植物体的某一部位就不再移动,不能从植物的衰老部分移到幼嫩部分,植物幼叶因缺硼而颜色变得很浅甚至死亡时,最初形成的老叶仍保持绿色。所以植物在整个生命周期中,都需要不断地吸收硼,但硼不是植物体的形成部分,在植物体内没有发现硼的有机化合物。硼对作物生理过程有三大作用:一是促进作用,硼能促进碳水化合物的运转,植物体内含硼量适宜,能改善作物各器官的有机物供应,使作物生长正常,提高结实率和坐果率。二是特殊作用,硼对受精过程有特殊作用。它在花粉中的分布,以柱头和子房含量最多,能刺激花粉的萌发和花粉管的伸长,使授粉能
First, the effect of boron on crops Boron (B) is a crop essential trace nutrients, dicotyledonous boron content, generally higher than monocotyledons. Boron with BO_3 ~ 3- anion state is absorbed by the plant, once it enters the plant a certain part will not move, can not move from the aging part of the plant to the tender part of the plant leaves due to lack of boron and the color becomes very shallow Even the death, the initial formation of the old leaves remain green. Therefore, plants need to constantly absorb boron throughout their life cycle, but boron is not a forming part of the plant body and no organic compounds of boron are found in the plant body. Boron has three major roles in the physiological processes of crops: one is the promoting effect, the boron can promote the operation of carbohydrates, the suitable amount of boron in the plants can improve the supply of organic substances in various organs of the crops, make the crops grow normally, improve the seed setting rate and fruit setting rate. The second is a special role, boron has a special role in the process of fertilization. Its distribution in the pollen to stigma and ovary most content, can stimulate the germination of pollen and pollen tube elongation, pollination