Intertillage weeding
After planting citron, intertillage weeding should be carried out at least two or three times a year. Intertillage weeding should be combined with each topdressing. The first intertillage is usually carried out before the buds appear on the citron, the second time is from summer to around, and the last time is usually around 1 1 month, after the citron is harvested. Citron is a shallow-rooted plant, so every time we plow the land, we should do shallow tillage to avoid hurting the roots of citron and affecting its normal growth. Of course, if conditions permit, it is best to cultivate the soil once in winter, so as to ensure the growth of citron trees and prevent freezing injury.
Scientific topdressing
Citron trees need topdressing three times a year, and the topdressing time is the same as that of intertillage weeding, which is beneficial to nutrient absorption. The first topdressing is mainly manure and urine, which can promote the growth of branches and leaves and promote the differentiation of flower buds. The second topdressing is mainly vegetable cake fertilizer, or irrigation with manure water, and topdressing outside the roots with appropriate amount of urea and phosphate mixed water can promote the growth of trees and strengthen fruits at the same time. The last topdressing, also called fertilizer preservation, is usually carried out after the harvest of citron, mainly thick vegetable cake fertilizer and manure to prepare for high yield in the coming year.
blossom and fruit thinning
In order to ensure the yield and quality of citron and improve the fruit setting rate of citron, we should scientifically sparse flowers and fruits. Generally, in the flowering period of citron trees, the redundant male and female flowers should be gently knocked off, and only the appropriate flowers should be kept on each branch. This can play a role in reducing physiological flowering, thus improving the pollination success rate. Secondly, after fruit setting, in order to avoid physiological fruit drop caused by insufficient nutrition supply, we can remove some weak fruits, deformed fruits and pests and diseases, which can ensure the quality of citron fruits to a certain extent.
Trimming and shaping
In order to reduce the damage of pests and diseases to citron and improve the yield and quality of citron, reasonable pruning and shaping of branches and leaves are also essential. First, prune the messy branches of the citron tree; Secondly, distribute the fruiting branches reasonably to avoid excessive growth of branches and leaves; There is also the need to remove some weak branches and dead branches; Finally, it is necessary to control the tree shape and keep a certain gap between each plant, so as to effectively reduce the harm of some pests and diseases and improve the yield.
control of insect
The resistance of citron trees is actually quite good, but pests and diseases are also frequent. The most important disease is soot disease, which we mainly prevent by pruning branches and leaves. It has many pests, such as leaf miner, scale insect, butterfly, butterfly jade belt, aphid, spider and so on. We can control it with trichlorfon or dimethoate. For butterfly pests, phoxim is the best way to control them, and the effect is better.
In the process of planting citron trees, we also need to pay attention to water management. In addition, in its different growth periods, we need to pay attention to different points, and we should manage it scientifically according to its growth habits, so as to achieve the best results.