Fertilization is the main way to artificially supplement soil nutrients, fertilize fertility, increase fertilizer supply capacity, and meet nutrient requirements for crop growth and development. Eighty percent of the orchard's need for fertilizer is applied once in the fall (September-October), and its effect of increasing yield and increasing yield is very obvious.
main reason?
1, strong root growth, strong absorption capacity. Autumn is the last peak of growth in the root system in one year. At this time, the roots of the fertilized and injured roots are easy to heal. The rooting helps to promote new roots. Its vital activities are strong and its ability to absorb nutrients is strong, and it is beneficial to delaying leaf senescence and enhancing the photosynthetic capacity of autumn leaves. Increase tree nutrient storage. If the autumn fertilizer is changed to spring application, the injured root system cannot be healed in time, and the transmission of nutrients to the aboveground is hindered, which has a greater impact on the growth of the tree.
2, suitable for soil temperature and humidity, conducive to decomposition of nutrients. From September to October, the soil temperature is higher and the soil moisture is better, which is beneficial to the soil microbial activity. The applied organic fertilizer is quickly cooked and is easily absorbed and utilized by the root system. Fertilization in autumn can increase nitrogen, phosphorus, potassium, calcium, and magnesium fertilizers by 1x, 5x, 3x, 2x, and 2x, respectively. The spring rainfall is less, the soil moisture is poor, the fertilizer applied is decomposed slowly, the utilization rate is low, and it is easy to cause root burning.
3, coordinate nutrient supply, stable and robust tree vigor. Autumn basal fertilization is conducive to the coordination of vegetative growth and reproductive growth, that is, after the available nutrients in the fertilizer are absorbed, it can greatly enhance the function of autumn leaves, increase the accumulation of nutrients, make the flower buds full and full, early spring budding, flowering neat, spring shoots grow strong The large amount of growth is conducive to maintain a robust tree vigour of high quality and high yield. The delayed nutrients are decomposed in the soil through long-term decomposition, and are easily absorbed and utilized in the spring, strengthen the late development of spring shoots, improve the quality of middle and short branches, and can Stopping in time creates conditions for flower bud differentiation. If the basal fertilizer is applied for a long time due to drought, nutrient decomposition and transformation will be slow, and the tree growth will require a “misalignment†at the peak of fertilizer development, resulting in long-term greed, prolonged defoliation, and delayed nutrient return, which will affect the annual output. ?
4, to improve the root growth environment, improve the tree stress resistance. Combined with autumn fertilization and deep-turning soil, the soil structure can be optimized, and the soil permeability conditions can be improved, which will facilitate the growth of roots and respiration, and increase the ability of the soil to retain water and fertilizer and prevent overwintering. In addition, the deep turning of the soil can also destroy some of the pests' wintering sites and reduce the pests and diseases. ?
5. Fertilization in autumn with a wide range of fertilizer sources and no conflict with other crops.
main reason?
1, strong root growth, strong absorption capacity. Autumn is the last peak of growth in the root system in one year. At this time, the roots of the fertilized and injured roots are easy to heal. The rooting helps to promote new roots. Its vital activities are strong and its ability to absorb nutrients is strong, and it is beneficial to delaying leaf senescence and enhancing the photosynthetic capacity of autumn leaves. Increase tree nutrient storage. If the autumn fertilizer is changed to spring application, the injured root system cannot be healed in time, and the transmission of nutrients to the aboveground is hindered, which has a greater impact on the growth of the tree.
2, suitable for soil temperature and humidity, conducive to decomposition of nutrients. From September to October, the soil temperature is higher and the soil moisture is better, which is beneficial to the soil microbial activity. The applied organic fertilizer is quickly cooked and is easily absorbed and utilized by the root system. Fertilization in autumn can increase nitrogen, phosphorus, potassium, calcium, and magnesium fertilizers by 1x, 5x, 3x, 2x, and 2x, respectively. The spring rainfall is less, the soil moisture is poor, the fertilizer applied is decomposed slowly, the utilization rate is low, and it is easy to cause root burning.
3, coordinate nutrient supply, stable and robust tree vigor. Autumn basal fertilization is conducive to the coordination of vegetative growth and reproductive growth, that is, after the available nutrients in the fertilizer are absorbed, it can greatly enhance the function of autumn leaves, increase the accumulation of nutrients, make the flower buds full and full, early spring budding, flowering neat, spring shoots grow strong The large amount of growth is conducive to maintain a robust tree vigour of high quality and high yield. The delayed nutrients are decomposed in the soil through long-term decomposition, and are easily absorbed and utilized in the spring, strengthen the late development of spring shoots, improve the quality of middle and short branches, and can Stopping in time creates conditions for flower bud differentiation. If the basal fertilizer is applied for a long time due to drought, nutrient decomposition and transformation will be slow, and the tree growth will require a “misalignment†at the peak of fertilizer development, resulting in long-term greed, prolonged defoliation, and delayed nutrient return, which will affect the annual output. ?
4, to improve the root growth environment, improve the tree stress resistance. Combined with autumn fertilization and deep-turning soil, the soil structure can be optimized, and the soil permeability conditions can be improved, which will facilitate the growth of roots and respiration, and increase the ability of the soil to retain water and fertilizer and prevent overwintering. In addition, the deep turning of the soil can also destroy some of the pests' wintering sites and reduce the pests and diseases. ?
5. Fertilization in autumn with a wide range of fertilizer sources and no conflict with other crops.
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