“In addition to the use of organic fertilizer and green manure fertilization technology, straw returning, loose soil, soil testing and fertilization can improve the soil fertility of the orchard.†Currently, the vice chairman of the Shandong Soil and Fertilizer Society, the soil testing formula of Shandong Province Expert of the fertilization expert group, Professor Fang Fanggong of Qingdao Agricultural University pointed out.
Straw returning is the technique of using crop straw to smash it to a certain degree of fineness and return it to the soil. Its main purpose is also to increase the content of soil organic matter. The amount of straw is about 1000 kg per mu; the length of the straw is chopped to 5 to 10 cm; the nitrogen fertilizer should be used at the same time, 3 to 5 kg of ammonium bicarbonate is used for 100 kg of straw; a certain amount of catalyst can be used to facilitate the decomposition of straw; Placed under the fruit tree tray, it is best to turn the straw down to the ground.
How does soil testing and formula fertilization improve soil fertility in orchards? Fertilization by soil testing formula can find key influencing factors affecting crop growth and development, and can design fertilizers in a targeted manner. However, one type of formula is produced according to the crop, and the other is produced according to the soil. For example, if there are some chlorine-free crops, you can't use chlorine-containing formula fertilizer. The combination of the two is now a problem, and you need to communicate more with experts in the agricultural technology promotion department.
The soil technology of soil fertility is mainly used in orchards, clay soils and thin orchards with relatively low fertility levels and poor physical properties. When you are in the soil, you should pay attention to the amount of the guest soil. The soil layer of the guest soil is generally about 10 cm. In addition to the guest soil, you can also use loose soil or deep tillage, deep cultivation of about 30 cm, so that the soil reaches a deep tillage layer, improve the physical properties of the soil. However, Teacher Yan also said that this can only change the physical properties of the soil, and can not increase the fertility of the soil itself. In this process, it is necessary to combine the correct fertilization, so as to play the role of fertilizing the orchard.
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