What are the latest causes of low mango yields?
Mango is a tropical fruit deeply loved by people. It has a refreshing taste and high nutritional value, and it has also attracted many farmers to grow it. But during cultivation, it is found that mango yields are relatively low. What is the reason for this? Let's take a look at the detailed introduction.
1. Adverse weather
Mango needs a certain period of low temperature during flower bud differentiation to stimulate its growth. If continuous high temperature occurs during flower bud differentiation, it will make heading difficult. In addition, although a short period of low temperature can promote flower bud differentiation, low-temperature and rainy weather is also unfavorable for fruit setting. If low-temperature and rainy weather occurs after flowering, it will cause flower drop, poor pollination, and a low fruit-setting rate. Therefore, pruning as well as flower and fruit thinning and light exposure should be done well to promote flower bud differentiation and increase the fruit-setting rate.
2. Insufficient nutrition
Insufficient fertilization and fewer nutrients in the soil lead to poor growth of the fruit trees, affecting yield and quality. Especially during the flowering and fruiting period, because the vegetative growth period is short, the nutrient accumulation in the tree body is relatively low. Many fruit growers are seriously short of fertilizer during planting and do not fertilize during the growth period, which leads to fewer flowers and fruits on the fruit trees. In the later stage, due to insufficient nutrition, a large number of flowers and fruits will drop. During the flowering and fruiting period, mango has a high demand for nutrients, so fertilizer should be applied in time to supplement nutrition. During the flower budding stage, flower-strengthening fertilizer should be applied in time to promote flower spike development. After the flowers fade, fruit-strengthening fertilizer should be applied as a top dressing to promote fruit development.
3. Physiological metabolic disorder
In production, many orchards spray paclobutrazol to force flowering. However, due to reasons such as few applications of supporting cultivation techniques for flower forcing and long-term excessive pesticide use, the physiological metabolism of the tree body becomes disordered, resulting in poor flower spikes and an unreasonable ratio of female to male flowers, leading to a low fruit-setting rate and relatively serious flower and fruit drop. During flower bud differentiation, plant nutrient solution can be sprayed regularly to improve leaf photosynthesis, reduce pesticide residues, promote the absorption and utilization of fertilizer by stems and leaves, and ensure healthy growth of the tree body.
4. Damage from pests and diseases
As the temperature rises, the flowering and fruiting period is the peak period for pests and diseases. Diseases at this time include anthracnose, powdery mildew, sooty mold, bacterial angular leaf spot, etc. Pests include noctuid moths, short-headed leafhoppers, aphids, thrips, etc. They all affect the yield and quality of mango, so pest and disease prevention and control should be done well, and timely prevention and control should be carried out when pests and diseases occur.
The above is an introduction to the causes of low mango yields. I hope it can help you. If you want to learn more related knowledge, please stay tuned to us.