It's not difficult to plant an apple with a yield per mu 1000 kg. The key points are seedling varieties, site conditions, cultivation methods, plastic pruning and water and fertilizer management. As long as these points can be done just right, it is not impossible to produce per mu 1.5 thousand kg.

First, seedling varieties

In order to obtain high yield of apples, the root system of seedlings is very important. First of all, it is best to buy seedlings from regular seedling breeding units with virus-free qualifications, because virus-free roots grow fast, have strong resistance, are not prone to viral diseases, and can lay a good foundation for high yield in the future.

At present, the better apple rootstock varieties are begonia angustifolia in Hebei, wild apple in Xinjiang and wild sweet tea in Pingyi. The most prominent characteristics of begonia baarris in Hebei province are strong resistance, high affinity with apple varieties and long growth period. The disadvantage is that fruit trees are easy to bud. The biggest advantage of Xinjiang wild apples is that they are drought-tolerant, bloom early and grow strongly, but the disadvantage is that they are not waterlogged. The most prominent feature of Pingyi sweet tea is its special waterlogging tolerance, which can maintain the stability of apple varieties in all aspects and reduce the occurrence of color mutations such as bud mutation. Disadvantages are poor drought resistance and brittle roots, which are more suitable for planting in windy places. These roots can be selected according to their characteristics and their own site conditions.

If you want high yield of apples, you'd better plant late-maturing varieties with high hardness, high density and high yield. If you plant red Fuji, you'd better choose all red varieties. A large number of practices have proved that the total red Fuji is larger than the striped Fuji on average, and its output is also higher than that of the striped Fuji.

Second, the site conditions

The site conditions of fruit trees are very important, which is the premise of high-yield cultivation of apples. The active soil layer for planting apples should reach at least 60 cm, which is beneficial to the deep growth of roots. As the saying goes? Deep roots and lush leaves? This is very reasonable.

It is required that the soil has good air permeability and strong water and fertilizer retention ability. In this kind of soil, the root system grows quickly without fertilizer removal, which is very beneficial to the improvement of apple quality and yield.

It is required that the planting area can be watered in drought and drained in waterlogging. Poor watering conditions will seriously affect the yield of apples.

Third, the training mode.

At present, the mode of rapid yield increase is dwarf, wide row and close planting, which not only increases yield quickly, but also has strong early fruiting and is convenient for mechanized operation. If it is well managed, it will enter the high-yield period in four years. Using M9-t337 self-anvil, it is no problem to plant110/40 plants per mu, and the output in the fifth year will reach 10000 kg.