How to Fertilize Grapes During Blossoming Period
Main Content Introduction: Learn about the small green plant maintenance tips for fertilizing grapes during the blossoming period and water and fertilizer management techniques. Keep reading!
Every year, April to May is the blossoming period for grapes. During this time, farmers need to pay attention to the water and fertilizer management of grapes, as the adequacy of water and fertilizer directly affects the yield of grapes. Below, we will introduce the water and fertilizer management techniques during the blossoming period of grapes through fertilizer management, water management, and precautions.
1. Fertilizer Management
During the blossoming period of grapes, timely top dressing with an appropriate amount of fertilizer is needed to promote the growth of grapes and increase yield. It is necessary to spray foliar fertilizer 7-10 days before flowering. It is recommended to apply 10-15 kilograms of urea, 20-30 kilograms of superphosphate, and 2-3 kilograms of trace element fertilizers per mu of orchard. This not only promotes the elongation of the pollen tube in grapevines but also improves the fruit-setting rate. About 10-15 days after the grapes bloom, it is recommended to apply top dressing promptly. At this time, the fertilizer should be dominated by potassium fertilizer and supplemented by nitrogen fertilizer. It is recommended to apply 15-20 kilograms of NPK compound fertilizer and 20-25 kilograms of potassium sulfate per mu of orchard. Foliar fertilizers can also be applied to improve the fruit-setting rate, such as spraying a 0.2-0.3% boracic acid solution.
2. Water Management
Generally, it is not recommended to water grapes during the blossoming period to avoid reducing yield. It is only necessary to maintain soil moisture at around 50% during the blossoming period. If the soil moisture is below 50%, it is necessary to replenish water promptly. Under normal conditions, a large-scale watering is done 7-10 days before flowering, thoroughly watering the soil, but be careful not to accumulate water, as standing water can affect the root respiration of grapevines, possibly damaging the roots and even leading to the death of the vines. During the blossoming period, it is important to moderately control water and maintain a slightly dry soil. If it is not particularly dry, there is no need to water, as excessive moisture is not conducive to flowering, pollination, and fertilization.
3. Precautions
During the blossoming period of grapes, it is also necessary to perform operations such as pinching and tying vines to save nutrient consumption, allowing grapevines to grow better. After the blossoming period is over, it is also necessary to apply top dressing promptly, which is beneficial for the growth of later-stage fruits and can increase the fruit-setting rate of grapevines. Pay attention to controlling the temperature, not too high or too low, to avoid affecting the growth of grapevines. If grapes are grown in greenhouses, it is also necessary to pay attention to ventilation inside the greenhouse.
The detailed content introduced above about how to fertilize grapes during the blossoming period and the water and fertilizer management techniques can hopefully provide you with help!