This year, the fruit preservation work of citrus has been in full swing, and the first round of fruit preservation spraying has been carried out in various places, and fruit farmers are actively engaged in this agricultural task. However, fruit preservation work is not a simple spraying, but needs to consider a variety of factors, and scientifically formulate fruit preservation strategies to achieve good results. There are a few key takeaways from this year's citrus fruit preservation work that require special attention.
1. The influence of climatic factors on fruit preservation:
First of all, climatic factors are crucial. This year's climatic conditions have adversely affected the quality and flowering of citrus flowers. The dry and hot weather, especially the cold and drought of last winter, and the high temperature and drought of this spring, have had a negative impact on the quality of citrus flowers. This results in shorter flowering, incomplete flower development, and early blooming, which adds to the difficulty of the pollination and fertilization process. This is also the case with pollination and fertilization, as the opening time of the flowers is shortened due to abnormal temperatures, which is not conducive to normal pollination and fertilization. Growers need to take steps to facilitate this critical process.
2. Influence of tree vigor and flower quantity:
Tree strength and flower quantity are the factors that directly affect the difficulty of fruit preservation. There are differences in tree vigor and flower quantity in different orchards, and different fruit preservation strategies need to be adopted according to local conditions. Weak citrus trees have more fruiting branches, but they have a short flowering period and limited pollination and fertilization time, so it is difficult to preserve the fruit. On the other hand, strong citrus trees have a longer flowering period and are more likely to retain fruit. In terms of flower size, although citrus trees usually have large flowers, they have a relatively low fruit setting rate. Growers need to take measures, such as cutting off the top flowers, to increase fruit set.
3. Causes and countermeasures of physiological fruit drop:
Citrus has a long physiological fruit drop time, lasting from flowering to early to mid-July. Growers need to understand the causes of various physiological fruit drops and the corresponding countermeasures. Abnormal flowering, undernutrition of trees, excessive growth of summer shoots, pests and diseases, weather factors, improper management, and hormonal imbalances can all lead to physiological fruit drop. Fruit growers need to take timely measures, such as nutritional regulation during the process of flower bud differentiation, timely spraying to control pests and diseases, and control the growth of summer shoots, so as to maintain a stable yield of fruits.
4. Comprehensively consider and formulate a scientific fruit preservation strategy:
This year's citrus fruit preservation work needs to take into account a variety of factors, including climate, tree potential, flower quantity, physiological fruit drop, etc. Only on the basis of a comprehensive understanding of these factors can growers develop scientific fruit preservation strategies to ensure a good citrus harvest. In this protracted battle, as long as we are attentive, I believe that this year's citrus fruit preservation work will be successful.