How to improve grape fruit set rate? Learn the latest methods
The prospects for grape growing are very good, but growing grapes is not simple. Grapes are a very fragile fruit, and failing to control the surrounding environment can have a considerable impact on their yield. For example, temperature, nutrients and water. This causes grapes to suffer severe flower and fruit drop, and the fruit set rate decreases. So how to improve the fruit set rate of grapes is the problem many farmers most want to solve. So, how should the fruit set rate of grapes be improved? Let's take a look together with the editor below!
1. Prevent excessive growth
Many friends do not pay attention to vigorously growing and leggy shoots during the growing process, letting them continue to grow. Little do they know that if a certain shoot of the grapevine grows too strongly, it will affect the flowering and fruiting rate of the grapes. The growth of the grapevine must not be too strong, because if it is too strong it will require a large amount of nutrients, competing for the nutrients of the lower branches of the grape, causing poor development of the grapes. The ability of the newly grown branches in the second year to flower and bear fruit will also decrease, so the strongly growing branches should be properly pruned, leaving a small number of secondary shoots to increase the leaf area. However, attention should also be paid to weakly growing branches, leaving more secondary shoots to sprout and strengthen growth.
2. Reasonable fruit retention
When planting, most people think that the more fruit the better, so they do not carry out reasonable flower and fruit thinning on the fruit trees. This not only fails to increase fruit yield, but also causes the quality of the grapes to deteriorate and reduces the tree vigor of the fruit trees. It causes poor development of the fruit trees, reduces the pollination rate of flower buds in the second year, and reduces the accumulation of nutrients in the branches of the plant, affecting the flowering and fruiting rate, thereby causing flower and fruit drop. So we should carry out reasonable fruit retention, control the quantity, ensure quality, and reduce the phenomenon of flower and fruit drop.
3. Ensure nutrition
Ensuring sufficient nutrition needed for the growth of the grapevine is a key factor in strengthening the growth of the grapevine and improving the fruit set rate. After harvesting, sufficient base fertilizer should be applied to the orchard, and the application amount should reach at least half or more of the fertilizer needed for a year. Topdressing should be done at least three times a year. Applying an appropriate amount of nitrogen fertilizer before germination is the first time. The second topdressing is carried out during the fruit expansion period, and the fertilizer can be decomposed farmyard manure. The last time is when the fruit colors, mainly focusing on some trace elements, and paying attention to the application of nitrogen fertilizer.
4. Prevent and control diseases
Pests and diseases are also one of the main reasons causing grape flower and fruit drop, so if you want to improve the fruit set rate of grapes, you must also prevent the occurrence of pests and diseases. The main pests and diseases of grapes include downy mildew, leafhoppers, etc. After harvesting each year, the orchard should be promptly and comprehensively disinfected, and the remaining diseased and disabled branches and damaged fruits should be gathered for cleaning. Note that they must be kept away from the orchard, and then the orchard should also be regularly cultivated and disinfected to remove bacteria and insect eggs in the orchard, reduce pathogens, and lower the incidence rate.
The above are the methods for improving the fruit set rate when growing grapes, mainly some management issues during the growing process. Growing grapes cannot be done carelessly; you must be careful and patient to ensure the growth and development of the grapes, so that the grapes can flower and bear fruit well. You cannot blindly retain fruit in order to increase yield, so everyone should retain fruit reasonably, otherwise it will be counterproductive.