Causes and Prevention methods of Walnut empty Bud

Walnut is one of our common nuts, which is deeply loved by consumers, but the empty bud phenomenon often occurs in the production process of walnut. The so-called empty bud phenomenon means that part of the walnut fruit has no kernel. This phenomenon seriously affects the yield of walnut, so what is the cause of it? Is there a solution? Let's take a look at the pro-farm network.

1. Environmental discomfort

Walnut is a temperature-loving plant, if it is planted in abnormal climate, or in a continuous high temperature climate, it will affect its kernel growth, especially when the temperature is kept above 40 degrees, the fruit is vulnerable to sunburns, resulting in an increase in the probability of empty bracts. In addition, walnut is more sensitive to water, if the planting environment precipitation is less, more dry, there is no timely watering, it is easy to cause empty bud.

Prevention method: the planting environment must be suitable for the growth of walnut, the suitable temperature of walnut is 27-29 degrees, and it is not suitable to grow at a temperature of more than 40 degrees for several days. In addition, in areas with less precipitation, it is necessary to replenish water in time so that the fruit can get sufficient water during its growth.

2. Poor pollination

Walnut is a monoecious tree species, they are not synchronized when they bloom, the self-fruiting rate of walnut is low when the male and female flowers do not bloom at the same time, and some fruits can not grow and develop normally due to insufficient pollination, so empty bud phenomenon appears. In addition, walnuts are pollinated by wind, and if they encounter overcast and rainy weather during pollination, the pollination effect is not good and empty buds appear.

Prevention method: the phenomenon of poor pollination is better to be solved. Since it pollinates poorly on its own, we artificially pollinate it and plant it according to the ratio of male to female during planting to ensure that there is enough powder source, while in the rainy season, we can help pollinate the male flowers manually, smear the female flowers and complete the pollination.

3. Lack of nutrition

During the growth of walnut fruit, it consumes a lot of nutrients, and if the nutrients in the plant and soil are insufficient, the tree will appear a phenomenon of hunger, resulting in the fruit can not grow because of no nutrition, so the empty bud phenomenon is formed.

Prevention methods: in the fruit and fruit growth period, we must ensure the supply of nutrients, during this period to strengthen fertilization management, provide soil fertility, ensure the supply of nutrients. However, when applying fertilizer, we should pay attention to the reasonable collocation of nitrogen, phosphorus and potassium fertilizer to prevent malnutrition, and the amount of fertilizer should be controlled flexibly according to the growth status of the plant, so as to increase the yield and reduce the rate of empty bracts.

4. Too many results

If walnut trees are managed properly, there are usually more fruits, usually female flowers sit in pairs, and sometimes there are strings and spikes of fruit, but once there are more fruits, there will be competition among fruits and grabbing nutrition, while some fruits are not satisfied with nutrition, there will be empty buds.

Prevention method: reasonable fruit thinning results in large amount and fast nutrient consumption, in order to avoid this situation, we should carry out fruits and vegetables in time, select the fruits that grow too densely and grow in clusters, and cut off some of the smaller and abnormal ones, and reserve enough nutrients for the rest of the fruits to make them grow strong.

The above are the reasons and prevention methods of walnut empty bud brought by pro-agricultural network. I hope it can help you. If you want to know more, please pay attention to pro-agricultural network.