Fertilization time and method of Waxberry

The base fertilizer of red bayberry is applied from September to October in autumn, the base fertilizer is beneficial to promote root growth, germination fertilizer can be applied from March to April, which is helpful to promote axillary bud germination and branch and leaf growth, and strong fruit fertilizer is applied in the middle and upper stages of April. it is beneficial to promote summer shoot growth and fruit development, while the application of postharvest fertilizer in the first and middle stages of July is mainly potassium fertilizer, which is beneficial to restore tree potential and promote flower bud differentiation. Fertilization methods: strip ditch application method, ring ditch application method and radiation ditch application method can be used to apply fertilizer.

1. Fertilization time of red bayberry

The main results are as follows: 1. The base fertilizer of red bayberry can be applied in autumn, usually from September to October, which is the peak period of root growth of red bayberry. Applying base fertilizer in this period is beneficial to promote root growth, and wait until next spring to absorb a lot of nutrients for flowering and fruiting.

2. The main purpose of fertilization management of red bayberry in the middle and later stage is to promote fruit development and improve its quality. it is better to apply nitrogen, phosphorus and potassium in the ratio of 1 to 0.5.

3. Strong fruit fertilizer is usually applied in the first and middle period of April, in order to promote summer shoot growth and fruit development.

4. The application of postharvest fertilizer in the early and middle July after fruit harvest is mainly potassium fertilizer, combined with a small amount of nitrogen fertilizer, which is beneficial to restore tree potential and promote flower bud differentiation.

5. The trees that bear fruit in small years can apply special compound fertilizer for fruit once after harvest, which is helpful to reduce the flower bud differentiation in autumn and winter, so as to relatively reduce the amount of flowers in the coming year.

6. The proportion of mineral nutrients in plant ash and rapeseed cake fertilizer is very suitable for the growth of red bayberry, among which potassium sulfate compound fertilizer and potassium sulfate fertilizer are more suitable for the growth of red bayberry. Because phosphorus is essential for the formation of flower bud primordia, excess will increase the number of blossoms and fruits, so adult trees generally need to apply phosphate fertilizer every 1-2 years.

II. Topdressing of bayberry trees

The main results are as follows: 1. Generally, topdressing should be carried out according to the growth characteristics of bayberry trees. Available nitrogen fertilizer can be applied mainly in young bayberry trees, with a small amount of nitrogen for many times, so as to promote the rapid growth of branches and leaves and accelerate the formation of trees.

2. The general bayberry fruit tree needs topdressing 2-3 times a year, mainly including pre-bud fertilizer from March to April, which is beneficial to promote axillary bud germination and branch and leaf growth.

3. In order to improve the fruit setting rate, available nitrogen fertilizer should be applied together with appropriate amount of phosphorus and potassium fertilizer. Strong fruit fertilizer can be applied in May, which is beneficial to accelerate fruit expansion and flower bud differentiation, so as to improve fruit quality, mainly phosphorus and potassium fertilizer, with appropriate amount of nitrogen fertilizer, about 1-2 kg potash fertilizer or 1-2 kg sulfur compound fertilizer can be applied to each plant.

III. Fertilization methods for bayberry trees

The main results are as follows: 1. Strip furrow fertilization method: a ditch with a width of about 30cm and a depth of about 20-40cm can be dug on both sides of the outer edge of the fruit crown projection, and fertilizer can be applied.

2. Annular ditch application: generally, the annular ditch with a depth and width of 20-40cm was dug slightly farther away from the outer edge of the projection of the bayberry crown.

3. Radiation ditch application: this method takes the trunk as the center, digging 4-6 radiation ditches along the horizontal direction of the growth direction of each 30cm inside and outside the crown projection, with a width of about 30cm, a depth of about 20-40cm, shallow inside and deep outside, so as to prevent too much damage to the roots of bayberry.