The teacher asked me if there were two cherries and two grapes at home. They have been for many years, but they never bear much fruit, which is not enough for my family to eat. Why?

Hello! Cherry peaches and grapes can't bear many fruits under the following conditions:

1. Cherry trees are cross-pollinated. Your big cherry has poor fruit setting, which may be due to poor pollination. The problem of pollination tree matching should be solved. It is suggested to plant 1 pollination trees, such as Rubins, or to graft and change heads. Before solving the problem of tree pollination, pollen can be collected for artificial pollination, and large buds (flowers that can basically bloom the next day) can be collected. After anther removal, it can be used naturally in the shade at 25℃ for 65438 0 days.

2. Paclobutrazol is used in cherry to promote flower bud differentiation and fruit setting. Soil application has the best effect. Usage: Before germination, add a ditch every 1 to 1.5g projection area. ..

3. Strengthen pruning in summer, remove dense branches in time from May to August, and cut off long branches on the back. Cherry trees should mainly pull branches to promote the formation of flower buds, and the angle of pulling branches is 60, 70, 80 and 90 degrees from top to bottom.

4. Strengthen the management of water and fertilizer, and it is better to apply organic fertilizer in late August every year.

5, grapes should bear more fruits, requiring strong branches and full buds. Strengthen the management of water and fertilizer, control the amount of nitrogen fertilizer, pick the seeds in time in summer and control the vigorous growth.