What are the reasons for the low fruit-setting rate in grape cultivation
The editor introduces to you the small knowledge of the reasons for the low fruit-setting rate in grape cultivation, specifically as follows:
What are the reasons for the low fruit-setting rate in grape cultivation
With the improvement of living standards, people like to plant some fruits in their own yards, and grapes are among the most popular varieties. Unlike field grape cultivation, the advantage of courtyard grape cultivation is that it is convenient for daily cultivation and management. Moreover, it does not require arable land area. The trellis for grape cultivation can also be used to beautify the environment. So many benefits have excited most people, but some friends have reflected that the fruit-setting rate of grapes in the garden is always low. What is the reason? How to solve it? Next, the editor will answer for you one by one.
Analysis of the reasons for the low fruit-setting rate in courtyard grapes
1. Nutrient deficiency. Insufficient nutrition during the growing period may lead to inadequate pollen development, resulting in poor fertilization and affecting the fruit-setting rate.
2. Too many inflorescences. An excessive number of inflorescences can easily cause competition among nutrients, leading to malnutrition in some inflorescences.
3. Excessive application of nitrogen fertilizer before flowering. This situation can easily cause excessive growth of new shoots, which then compete for nutrients with inflorescences.
4. Diverse reasons. For example, some seedless varieties naturally have a low fruit-setting rate.
Solutions to the low fruit-setting rate in grape cultivation in the courtyard
1. Reasonable fertilization. Reasonable fertilization means supplementing the nutrients needed by grapes in a timely manner, especially after harvesting grapes in the autumn, it is necessary to apply top dressing in time. However, before the spring sprouts, compound fertilizer and water can be used for irrigation, but be careful not to over-apply nitrogen fertilizer. Finally, foliar fertilizers containing trace elements can be sprayed before and after flowering to supplement nutrients for the plant.
2. Thinning flowers and fruits. Excessive inflorescences and spikes should be removed before and after flowering to reduce the unnecessary consumption of nutrients.
3. This is a painful measure. It is recommended to leave 6-7 leaves on the spike for pinching 7 days before flowering. At the same time, always follow the principle of "more leaves for strong branches, fewer leaves for weak branches."
4. Reasonable use of plant growth regulators. For varieties with a low fruit-setting rate, such as Xiahei, plant growth regulators such as gibberellin can be used to treat the inflorescence. The specific use depends on the variety. Do not use plant growth regulators blindly.
This is the reason and solution for the low fruit-setting rate of grapes in the courtyard. I hope that after everyone is familiar with it, the grapes planted in their own yards can also have a good harvest.
The above-sharing small experience of the reasons for the low fruit-setting rate in grape cultivation may provide you with some help in your daily life!