1-3-year-old citrus trees without fruit bearing: pruning should focus on setting the trunk and shaping the crown.

1. Pruning

1-3-year-old citrus trees without fruit bearing: pruning mainly focuses on setting the trunk and shaping the crown. After planting, select the main trunk and top it at 30cm (leave a height of 20-40cm depending on the characteristics of the variety. Wogan, Maogu, etc. can be kept shorter, and sugar tangerine needs to be girded and should be opened higher), leaving three side strips. stem, and then top the auxiliary stems, leaving three buds on each stem, so that three will be born, three will beget nine, and nine will be 21... Cultivate the main branches and select the deputy main branches, and configure the side branches to make the tree compact and the branches and leaves lush. . After one year, the tree shape can basically be determined. In the second year, continue to cultivate the shoots 3 to 4 times a year to form a crown as soon as possible and remove the flower buds in time.

2. Planting time and planting technology

1. Time. It is generally planted after the autumn shoots mature from September to November or before the spring shoots sprout from February to March.

2. Density. Planting on flat land is carried out at a density of 3m between plants and 4m between rows, with 55-60 plants per mu. The stepped terrain should be planted at a density of 2.5 plant spacing × 3 m row spacing, and 80 plants per mu are appropriate.

3. Planting technology. Soil digging planting holes: pull wires at fixed distances, dig planting holes, 80cm deep and 80cm wide, then press green manure 50cm deep, and backfill soil 40cm high for planting; field ridge planting: 8 meters with trench (trench width 60-80cm, deep 40-60cm), open 2 ridges per box (ridge width 1.5m, ridge center distance 4m, ridge height 20-30cm). When planting, moderately trim the roots of the seedlings and place them in the center of the planting hole. Stretch the roots and straighten them. While filling with soil, gently lift the seedlings up and firmly, so that the roots are closely connected with the soil. Pour enough water to set the roots, make a 1m tree tray around the saplings, and cover it with chaff.