Misunderstanding 1: The new root of the vine has not been grown and fertilized.
Excessive fertilizer is applied before the new root grows. On the one hand, it will cause difficulty in water absorption of the seedlings. On the other hand, it will cause new roots to be difficult to grow. In the case of high temperature, the ground part will die dry. Before the new root grows out, it is only suitable for foliar supplement nutrition. It can be sprayed with urea water 500 times liquid + Nonglaixin potassium dihydrogen phosphate 600 times liquid leaf spray, sprayed every 5 days, and sprayed 3 times. When spraying fertilizer, it is best to choose when the afternoon is not too hot, and quickly spray.
Misunderstanding 2: a lot of fertilization and watering immediately after germination
If the fruit tree is germinated, if a large amount of fertilization and watering are selected, the soil temperature will be lower, the root absorption capacity will be worse, and the root system itself will be less and weaker. Finally, the more watering and fertilizing the fruit trees, the less the phenomenon. At this time, it is necessary to loosen the soil, improve the ground temperature, and at the same time add nutrients to the foliage.
Misunderstanding 3: Treetops or whole trees yellowing blind iron
At this time, foliar iron supplementation is a blind behavior, which cannot replace the absorption of roots. It can only cure the symptoms, and at the same time, the amount of fertilizer is too large, and it is easy to burn roots.
In this case, the first thing to solve is the problem of soil permeability and root respiration, and loosening and dehumidification are effective measures. Because the soil is good, the roots are good; if the roots are good, the trees are strong; if the trees are strong, the physiological diseases will be less, and the output will go up.
Misunderstanding 4: only drip fertilizer does not drip water during drip irrigation
Fertilizers are added every time during the drip irrigation of individual orchards, and the fertilizer is stopped immediately after the fertilizer is dripped. Since the amount of water per drop is limited, the water on the surface evaporates, causing the fertilizer concentration in the soil to become higher and higher, and finally the root system is burned out. Water and fertilizer integration should be drip for 15 minutes before dropping the fertilizer.
Myth 5: Severe acidification of soil continues to apply acid fertilizer
The pH of the soil affects the absorption of mineral elements by the grapes, and is closely related to the activity and population distribution of the microorganisms, and also has a great influence on the growth and development of the grapes. Under acidic conditions, soil organic matter is decomposed, soil buffer capacity is reduced, soil compaction is caused, water permeability and permeability are deteriorated, and the growth and development of crops are seriously affected. If the soil has been acidified, it is not advisable to apply physiologically acidic fertilizers. It should be adjusted with physiological alkaline fertilizers and can be applied alone or in combination with other fertilizers.
Misunderstanding 6: Fertilization at high temperature and lack of time
The temperature is high, the soil is not good, and if the water is not timely after fertilization, the concentration of fertilizer absorbed by the root system is large, and the leaf edge is degraded after fertilization, which impairs the function of the leaves, affects photosynthesis, and thus affects fruit quality and price. Disease resistance has also declined. If it is rainy in the later stage, the disease of the leaves will be serious and even cause the leaves to fall early.
Misunderstanding 7: Fertilizer application balance is wrong
Some fruit farmers believe that the application of nitrogen, phosphorus and potassium content of 15 fertilizers is balanced fertilization. In fact, this is just a balanced ratio of fertilizers. There is no relationship with scientific balanced fertilization. It is a true balanced fertilization technique based on the application of different proportions of fertilizers in different growing seasons. When the leaves are thick and green, the appropriate amount of nitrogen fertilizer should be applied. The fruit coloring period is mainly phosphorus and potassium fertilizer. After the fruit is harvested, the appropriate amount of nitrogen, phosphorus and potassium compound fertilizer is applied to promote the early recovery of fruit tree function and avoid premature aging.
This article URL: Spring vine planting fertilization considerations
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