What measures are there to improve soil fertility in orchards?

First, increase the application of organic fertilizer.

The application of agricultural fertilizers with high organic matter content such as human and animal manure, urine fertilizer, compost, compost and green manure, as well as a large number of chemical fertilizers (river mud, peat, etc.) can increase and maintain the content of organic fertilizer in soil. ) can be applied in places where conditions permit, and the effect of improving soil organic matter content is obvious.

Second, returning straw to the field.

Returning straw to field is an effective measure to improve soil and improve soil productivity. First, the straw is piled and retted and then applied to the soil; The other is to chop up the straw and scatter it on the surface after harvesting, then plough it and return it directly to the field. This can improve the physical properties of soil, promote the formation of soil aggregate structure, increase air permeability, water permeability and fertilizer conservation ability, thus improving soil fertility.

Third, reasonable rotation.

Rational rotation is a farming method of land farming. Two points should be paid attention to in crop rotation: First, the planting area of leguminous crops should be appropriately increased. Planting leguminous crops for about four years can increase the nitrogen content in the soil. At the same time, a large number of roots, stems and leaves can increase soil organic matter, improve soil physical and chemical properties and improve soil fertility after leguminous green manure crops are turned into soil; The second is to control the number of years of planting crops that consume land. For example, sugar beet rotation once every seven years, sunflower rotation once every four years, beans and melons rotation for more than five years, which is conducive to restoring soil fertility and preventing diseases.

Fourth, planting grass and fertilizing.

We should vigorously advocate planting green manure, beans and pasture to improve soil fertility and increase economic output. At present, the grass species that can be planted are mignonette and alfalfa. , so as to improve the soil, fertility, improve soil productivity.