Prevention of iron deficiency in fruit trees
2020-12-23 15:19:33
In the growth and development of fruit trees, iron is an indispensable trace element. It plays an important role in the synthesis of chlorophyll. Iron deficiency in fruit trees will affect the synthesis of chlorophyll and show "chlorosis." The main symptoms are: yellowing of leaf color in the initial stage, keeping veins green, not very obvious at the early stage of shoot growth; late young leaves are yellowing, and the branches and leaves will die from the top to bottom in a serious manner, which will directly affect the yield and fruit tree lifespan. Therefore, it is necessary to control iron deficiency fruit trees.
1. Foliar iron fertilizer. Iron fertilizer is mainly ferrous sulfate. Before the occurrence of iron deficiency in the year (before germination), the concentration of about 1%. Spraying during the growth period of fruit trees, the concentration is 0.30%-0.50%. When the symptoms are serious, it can be sprayed several times, usually once every half month.
2, buried bottle method. Early spring bottle best effect. When the fruit tree has just sprouted, the ferrous sulfate solution with a concentration of 0.10-0.30% is put in a washed bottle for use. Dig out the roots 1 m from the trunk, select a root with a diameter of 5 mm, cut the root and insert it into the bottle containing the ferrous sulfate solution, and then bury it in the soil. Buried 4-6 bottles can be.
3, increase organic fertilizer. With ferrous sulfate applied organic fertilizer. The humic colloids produced during the decomposition of organic matter can activate and adsorb available iron ions in the soil for absorption and utilization by fruit trees. Therefore, increasing organic fertilizers in the autumn has a significant effect on preventing iron deficiency in fruit trees.
4, soil improvement. Based on the application of organic fertilizers, topdressing chemical fertilizers should use acidic fertilizers to change the pH of the soil. Because slightly acidic soil can improve the utilization of iron. In order to reduce the incidence of iron deficiency.
1. Foliar iron fertilizer. Iron fertilizer is mainly ferrous sulfate. Before the occurrence of iron deficiency in the year (before germination), the concentration of about 1%. Spraying during the growth period of fruit trees, the concentration is 0.30%-0.50%. When the symptoms are serious, it can be sprayed several times, usually once every half month.
2, buried bottle method. Early spring bottle best effect. When the fruit tree has just sprouted, the ferrous sulfate solution with a concentration of 0.10-0.30% is put in a washed bottle for use. Dig out the roots 1 m from the trunk, select a root with a diameter of 5 mm, cut the root and insert it into the bottle containing the ferrous sulfate solution, and then bury it in the soil. Buried 4-6 bottles can be.
3, increase organic fertilizer. With ferrous sulfate applied organic fertilizer. The humic colloids produced during the decomposition of organic matter can activate and adsorb available iron ions in the soil for absorption and utilization by fruit trees. Therefore, increasing organic fertilizers in the autumn has a significant effect on preventing iron deficiency in fruit trees.
4, soil improvement. Based on the application of organic fertilizers, topdressing chemical fertilizers should use acidic fertilizers to change the pH of the soil. Because slightly acidic soil can improve the utilization of iron. In order to reduce the incidence of iron deficiency.
Mobile Beauty Lamp ,Beauty Lamp Light For Make Up,Beauty Lamp Red Light Therapy Light ,Beauty Red Light Therapy Light
Shenzhen Bonliter Optoelectronic Co., Ltd. , https://www.beautyredlight.com