After may, the temperature rose rapidly, and the rain water was much higher, and the citrus also ushered in a crucial period from fruit to fruit.The suitable weather conditions can easily make the summer shoots large, and the young trees should seize the moment, shoot the tops and expand the canopy.For hanging fruit trees, the key is to deal with the contradiction between the fruit, and reduce the fruit.
Keep fruit firm fruit
This month, most of the citrus fruits have entered the second physiological stage, and because of the long duration of the fruit, it is not easy to take care of the fruit.
For those who have not yet made the two insurance, choose clear fine weather, and take care of the product: erythromycin + sea Sprite stimulant leaf surface type + phosphorous potassium source bank.
In order to achieve the aim of stable fruit control, we need to cut in time for the serious varieties of the second physiological fruit.
Generally speaking, the spring pin turns green ring cut the most appropriate, after but for GuaGuo more tree, can be in after schizocarp, at the same time in the second ring cut before the next stability after fruit fat, with phosphorus potassium fertilizer source type library such as potassium fertilizer is given priority to, to promote fruit enlargement, germination inhibition summer tip at the same time.
It is noted that the root system is relatively weak and prone to root causes.
Controls the summer tip
In the case of fruit trees, a large number of summer shoots will consume a lot of nutrients, and the nutrition competition among them will result in a large number of fruits. Therefore, it is an important management work in this month.
Controls summer tip of commonly used methods include tree controls (fat KongShao and tip KongShao, with fruit KongShao), artificial control and drug control (KongShao, tip), specific operation may refer to the citrus how to control good summer tip?Here are a few points worth paying attention to.
The purpose of the control is to alleviate the contradiction between the ends, not to see the end of summer.Even for hanging fruit trees, summer tip also has certain positive meaning, such as for tree GuaGuo amount is larger, a moderate amount of summer tip can be washed away part of the fruit, reduce the workload of fruit thinning, increase Ye Guo than a tree.In addition, for the variety of the top fruit, such as the maogu and the capers, some of the summer tips can be used to temporarily cover the sunlight in the high temperature period to reduce the occurrence of sunburn.
The control is a comprehensive measure.Although the control is often divided into several kinds of methods, but in the practical operation more is used together.In the early stage, it can reduce the germination of summer shoot, and then cooperate with artificial smear to achieve good control effect.
The control method is used reasonably.If in the artificial smear, do not wipe off all, leaving one of the weakest, lest the summer shoot more and more;If the first summer shoots can be preserved, the weak tree with many hanging fruit is not suitable.In addition, it is recommended to try out a small range of drugs in order to avoid unnecessary loss.
Young trees management
Summer shoots grow well, the branches are long and thick, and for the young trees, it is the key to cultivate a good tree and form a luxuriant canopy.
10 ~ 15 days before the attack tip: fat tip, furrowing pour a balanced or high nitrogen type water soluble fertilizer (or compound) + sea elves of stimulants root type 300 times liquid, to enhance the nutrition of trees water, strong root system, and promote the summer tip.
Uniform tip: while the summer shoot is strong and strong, it is not very tidy.Usually, the top bud is spread 1~2 times, removing the apex advantage, let the lower bud first to take out, the plant new bud is neat.This can promote the release of new shoots, facilitate the prevention and control of diseases and pests, and produce a bumper canopy as soon as possible.
Zhuang fat tip: a tip after 1 ~ 2 times strong tip fertilizer, fertilizer application methods for trenching spray at a high phosphorus potassium source library or water soluble potassium fertilizer and compound fertilizer + sea elves of stimulants root type 300 times liquid, to speed up the summer tip old practice, try to smoke again, to form a dense canopy.
Cultivate the tree: short cut through long summer tip, shears should be outward.Timely remove the unfallen fruit and concentrate the nutrition supply;Attention should be made to the modification or pruning of the long branch, the position of the larger space, can be cut short, to promote the shoot shoot;After budding, we should pay attention to the work of sparing, leaving two or three branches for each branch, and the space is large enough to stay up to 4~5 pieces.For the too compact tree type, it is necessary to combine the pruning to make the tree open and cultivate the tree structure that is beneficial to the hanging fruit.
Remove above, this month will enter the period of disease and pest on citrus and disease mainly include anthracnose, canker, leaf spot, etc., insect damage mainly include leaf moth rust, scale insects, wood louse, ticks, sawyer, cryptotympana, attention should be paid to strengthen prevention and control at the same time, don't ignore trees grass such as blind Angle.
