Seedling planting bases have observed climate and environmental impacts in recent years. The newly planted yew leaves are yellowed, and many places have begun to use yew as landscaping and street trees. Poor growth. Even after a few years of survival, yew still died.
In some places, the reasons for the poor growth of yew, especially in areas north of the Yangtze River valley, are yellow leaves. According to the survey, there are mainly three reasons. The first is because of the high water table. However, it has not been planted too deeply on the seedlings of the yew and resulted in poor root development.
Second, the soil in some areas of the Yangtze River Valley is neutral or alkaline soil. The PH value is even around 8.5; at the same time. The average winter temperature is low and the groundwater level is high. These are all conducive to its normal growth.
The third is transplanting yew on a slightly alkaline soil. Leaf chlorotic yellowing may occur throughout the growing season, especially on saline ground. The main reason is due to iron deficiency.
After yew transplanted, the leaves were chlorotic (lawn yellowing) yellowing. Changes can be made from the following two aspects. The special fertilizer for yellowing of Taxus chinensis was applied and the physical and chemical properties of good soil were excavated one week before the new leaf germination. Appropriate amount of decomposed manure or compost is used as base fertilizer during transplanting. When the yew is cut and transplanted, soil ball should be taken in the root. Basal foot planting. Drainage ventilation performance is good, loose and fertile soil. It is beneficial to prevent and reduce the occurrence of iron deficiency yellow leaves; the second is spraying the leaves with ferrous sulfate solution during the growth phase.
The application of special fertilizer for yellowing seedlings of Taxus chinensis was applied one week before germination. Can use 100 to 200 times liquid irrigation, if there is rain can also be applied. Summer and fall must be drought-resistant. Add 3% potassium dihydrogen phosphate and 3% ferrous sulfate. Fertilize 3 to 4 times a year. The application time is 3 months, 6 months, 8 months, 9 months, and continuous application for 1 year. A small number of diseased plants are too alkaline for the soil and will temporarily turn green after application, but they will return to yellow after six months. They need to be combined with other methods of rhizosphere soil or replanted with soil.
In the middle and later stages of treatment, Huanghua Special Fertilizer will continue to be used to supplement effective strains with severe iron yellowing, and soil improvement efforts will be needed to increase the amount or increase the concentration while ensuring the safety of the root system.
The rooting of the acidic solution with the acidic solution can rapidly reduce the rhizosphere soil alkalinity and achieve the goal of improving the soil. This method should strictly control the concentration of acidic solution so as not to burn the roots and cause the consequences of leaf coke and diseased trees. Fertilizers outside the roots and nutrient supplements Taxus jatropha disease develops in the middle to late stages. Due to decreased root vigor and weak absorption capacity, measures such as soil improvement and fertilization alone cannot supplement plant nutrients. Fertilizer spraying and trunk hole fertilization are very important. Necessary, yellow leaves can be green in 7 to 10 days. Those who have mild symptoms may have a one-time improvement; those with severe symptoms or a bad environment may return to yellow in the five or six months and need to continue to top-dress.
Trim twigs to alleviate undernutrition The root activity of the yellow yew declines and atrophies. It is necessary to cut off some of the branches and concentrate the nutrition to supply the remaining twigs. Severe cuts, more blades and fewer cuts, and fewer cuts. When the best trim
During the dormancy period of yew, the winter trimming is generally performed, and the functional leaves are preserved in summer and autumn. If the illness is serious during winter cutting, it can be trimmed, and several main stems can be kept, so as to sprout new sprouts in the coming year and increase the survival rate of yew trees.
A variety of measures continue to play a role in the slow progress of soil improvement, and a variety of measures must be adhered to and used during the treatment process.
Severe diseased plants need to adhere to 2 years, and they must first control the condition, gradually improve in the first half of the year, and return to normal in the second year.
Heavy soil replanting for serious or acute disease, there is still no sign of improvement in the above measures, then the rhizosphere soil is too strong, must change soil. Remove the trash soil from the planting pit and refer to the pre-plant preventive measures.
In some places, the reasons for the poor growth of yew, especially in areas north of the Yangtze River valley, are yellow leaves. According to the survey, there are mainly three reasons. The first is because of the high water table. However, it has not been planted too deeply on the seedlings of the yew and resulted in poor root development.
Second, the soil in some areas of the Yangtze River Valley is neutral or alkaline soil. The PH value is even around 8.5; at the same time. The average winter temperature is low and the groundwater level is high. These are all conducive to its normal growth.
The third is transplanting yew on a slightly alkaline soil. Leaf chlorotic yellowing may occur throughout the growing season, especially on saline ground. The main reason is due to iron deficiency.
After yew transplanted, the leaves were chlorotic (lawn yellowing) yellowing. Changes can be made from the following two aspects. The special fertilizer for yellowing of Taxus chinensis was applied and the physical and chemical properties of good soil were excavated one week before the new leaf germination. Appropriate amount of decomposed manure or compost is used as base fertilizer during transplanting. When the yew is cut and transplanted, soil ball should be taken in the root. Basal foot planting. Drainage ventilation performance is good, loose and fertile soil. It is beneficial to prevent and reduce the occurrence of iron deficiency yellow leaves; the second is spraying the leaves with ferrous sulfate solution during the growth phase.
The application of special fertilizer for yellowing seedlings of Taxus chinensis was applied one week before germination. Can use 100 to 200 times liquid irrigation, if there is rain can also be applied. Summer and fall must be drought-resistant. Add 3% potassium dihydrogen phosphate and 3% ferrous sulfate. Fertilize 3 to 4 times a year. The application time is 3 months, 6 months, 8 months, 9 months, and continuous application for 1 year. A small number of diseased plants are too alkaline for the soil and will temporarily turn green after application, but they will return to yellow after six months. They need to be combined with other methods of rhizosphere soil or replanted with soil.
In the middle and later stages of treatment, Huanghua Special Fertilizer will continue to be used to supplement effective strains with severe iron yellowing, and soil improvement efforts will be needed to increase the amount or increase the concentration while ensuring the safety of the root system.
The rooting of the acidic solution with the acidic solution can rapidly reduce the rhizosphere soil alkalinity and achieve the goal of improving the soil. This method should strictly control the concentration of acidic solution so as not to burn the roots and cause the consequences of leaf coke and diseased trees. Fertilizers outside the roots and nutrient supplements Taxus jatropha disease develops in the middle to late stages. Due to decreased root vigor and weak absorption capacity, measures such as soil improvement and fertilization alone cannot supplement plant nutrients. Fertilizer spraying and trunk hole fertilization are very important. Necessary, yellow leaves can be green in 7 to 10 days. Those who have mild symptoms may have a one-time improvement; those with severe symptoms or a bad environment may return to yellow in the five or six months and need to continue to top-dress.
Trim twigs to alleviate undernutrition The root activity of the yellow yew declines and atrophies. It is necessary to cut off some of the branches and concentrate the nutrition to supply the remaining twigs. Severe cuts, more blades and fewer cuts, and fewer cuts. When the best trim
During the dormancy period of yew, the winter trimming is generally performed, and the functional leaves are preserved in summer and autumn. If the illness is serious during winter cutting, it can be trimmed, and several main stems can be kept, so as to sprout new sprouts in the coming year and increase the survival rate of yew trees.
A variety of measures continue to play a role in the slow progress of soil improvement, and a variety of measures must be adhered to and used during the treatment process.
Severe diseased plants need to adhere to 2 years, and they must first control the condition, gradually improve in the first half of the year, and return to normal in the second year.
Heavy soil replanting for serious or acute disease, there is still no sign of improvement in the above measures, then the rhizosphere soil is too strong, must change soil. Remove the trash soil from the planting pit and refer to the pre-plant preventive measures.
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