Do not water during summer drought
In general years, summer drought often occurs in June, and it lasts for a long time. At this time, it is the period of flower bud differentiation and young fruit swelling of fruit trees, and the critical period of fruit trees requiring water and fertilizer. Many fruit farmers are afraid of flushing flower buds. wrong. Watering at this time is beneficial to both flower bud differentiation and fruit cell division, and the first fruit cell enlargement can reduce the occurrence of fruit surface microcracks in autumn.
Single application of chemical fertilizer
The growth of fruit trees requires comprehensive nutrition. Single fertilization, whether it is nitrogen fertilizer, phosphate fertilizer, or potassium fertilizer, is unfavorable to the growth and development of fruit trees. Fertilization in June should be light nitrogen and heavy phosphorus, potassium, and combined with foliar spraying of trace element fertilizers and watering. Apply 1:5 amino acid fertilizer to calcium amino acid and tree trunk, do everything possible to meet the nutrient requirements for the growth of fruit trees, and balance the supply.
Raw feces (urine) into the garden
The farming proverb "dung on the ground is broken by the roots" talks about the hazards of dung. Organic fertilizers such as human feces and animal feces such as pigs, chickens, sheep, rabbits, etc., will burn roots if they are fed directly into the garden without full retting and fermentation. Any organic fertilizer must be retorted for more than one month to turn off-white before it can be applied to the orchard.
Improper bagging time
Too early bagging will affect the development of young fruit; too late bagging will result in poor greening of the fruit surface and poor coloration. It should be pushed back from the planned fruit sale time. Early ripe fruit is bagged 85 to 90 days before the fruit is sold, the middle ripe fruit is bagged 90 to 100 days before the fruit is sold, and the late ripe fruit is bagged 110 to 120 days before the fruit is sold. Fuji apples sold in time for the Mid-Autumn Festival will also count down 95 to 100 days from mid-September to bagging.
Improper twisting operation
Twist the new branch 90 degrees, don't you know that a new branch will emerge from the base. The correct way is to change the direction, from an upright angle of 90 degrees to an oblique angle of 60 degrees to 45 degrees, so that no new strips will be taken, and it will not be easy to sprain the branches. In addition, the new shoot must grow to 15-20 cm before twisting.
Improper handling of branches
The new and powerful branches on the back and the tops of the long branches in the previous year are either completely sparse or dare not move. The correct approach is to leave the leaves at the base for topping, and the time before June 15th can cultivate regenerated flower buds. Too late both consumes nutrients and is not conducive to re-forming flower buds.
The timing of rot disease prevention is wrong
The rot disease is not prevented in the growth period, but scraped and cured in the germination period. June-August is the peak period of fruit tree growth. During this period, 800-1000 times solution of 25% tebuconazole or 70% thiophanate methyl should be used for branches and trunks to smear or spray, which can effectively prevent the occurrence of spring rot.
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