How to apply top dressing at different stages of grape cultivation
This topic brought by the editor is about how to apply top dressing at different stages of grape cultivation, and the specific details are as follows:
How to apply top dressing at different stages of grape cultivation
Grapes are a common fruit, cultivated in many regions. To achieve high yield and quality of grapes, corresponding management is required at each stage. Let's learn about the fertilization management from April to October.
Grape Bud Break in April
Fertilization: Apply 2-3 kg of high-nitrogen fertilizer per mu, Foliar spray: Grapes need to be mixed with liquid fertilizer, one bag per mu, plus 20ml of Plant Growth Regulator 205.
Function: Mainly to provide nutrients for grapes, meet the nutrient needs of the germination stage, and also control physiological diseases such as yellow leaves, while enhancing the cold resistance of crops, effectively avoiding late frost damage.
May - Flowering and Shoot Growth
Fertilization: Balanced fertilization, water-soluble fertilizer, 3-4 kg/acre or high-phosphorus fertilizer. Foliar spray: Spray before and after grape flowering, should be combined with a bag of 35g foliar fertilizer and 20ml of Plant Growth Regulator 207.
Function: Promote bud differentiation, pollination, and fertilization. Improve the quality of flower buds, increase inflorescences, promote shoot growth, and make leaves greener.
June - Berry Expansion Stage
Fertilization: High-potassium fertilizer, water-soluble fertilizer, 4-5 kg per mu. Foliar spray: Grapes should be combined with a bag of foliar fertilizer and 20ml of Plant Growth Regulator 207.
Function: Enhance the drought resistance of the crop, reduce the impact of high temperatures on yield, meet the rapid nutrient needs during the fruit expansion stage, the young fruit stage is the key period for absorbing calcium fertilizer to prevent fruit cracking, can spray nano calcium.
July - Color Expansion Stage
Fertilization: High-potassium fertilizer, water-soluble fertilizer, 4-5 kg per mu. Foliar spray: Grapes should be combined with foliar fertilizer and Plant Growth Regulators 205/207.
Function: Promote fruit expansion, increase yield, improve the appearance, color, and brightness of the fruit surface, prevent fruit cracking, and increase orchard profits.
Color Maturation Stage - August to September
Fertilization: Foliar application of foliar fertilizer is required for grapes.
Function: Promote the formation and transportation of photosynthetic products to the fruit, increase fruit sweetness, promote grape color change, improve color, increase yield and quality, and extend storage period.
October - Leaf Drop Stage
Fertilization: Biological organic fertilizer or microbial fertilizer, 50kg of potassium sulfate ternary compound fertilizer.
Function: Beneficial for the accumulation of stored nutrients within the same year, improve frost resistance, and promote the increase of spring germination rate.
The above content about how to apply top dressing at different stages of grape cultivation can be used as a reference by green plant enthusiasts.