There can be 300- 1500 flowers in the grape inflorescence, and most of them will fall off at the fruit-setting stage. Therefore, thinning the inflorescences left on the fruiting branches can strengthen the development of the remaining flowers. Sparse inflorescence. Refers to the whole removal of inflorescences from fruiting branches. When the load of plants is large and there are too many inflorescences, cauliflower inflorescences are needed. Dispel the weak flowers with poor development and the inflorescences with too dense distribution or inappropriate position, so that the nutrient supply can leave the excellent inflorescences. Besides the total plant load, it also depends on the growth intensity of fruiting branches. The fruiting branches with more than two ears are well developed and can also be used as excellent fruiting mother branches in the coming year. However, weak fruiting branches, even if they have ears, tend to grow poorly, which is not only not suitable for fruiting mother branches in the second year, but also has poor wintering ability. According to the experience at home and abroad, the principle of "strong 2 middle 1 weak without inflorescence" can be adopted for fresh food species such as Rose fragrance and Jufeng, and it can be used as a reference when thinning inflorescences, that is, strong fruiting branches can leave 2 ears, medium fruiting branches can leave 1 ear, and weak fruiting branches should try not to leave inflorescences. Flowering can be combined with bud removal and branch removal, or thinning can be carried out before flowering to flowering on the basis of branch removal. From the perspective of economy, it should be carried out as soon as possible. Spike cutting and inflorescence shaping. Generally, it is achieved by pinching the inflorescence tip and shaping the inflorescence. Usually, not a single flower is sparse, but all horizontal rachis (spikelets) in a sparse inflorescence. It is advisable to pinch the spike tip and shape the inflorescence within one week before flowering. Too late, the effect of promoting fruit setting is poor; Too early, the inflorescence is not stretched enough, and plastic surgery is not very convenient. The coring degree of Rosebud and Kyoho is about 1/4- 1/5 of inflorescence length. After pinching off the tip of the ear, it not only achieved the purpose of thinning some flowers, but also reduced the risk of soft tip of the ear or water tank disease.