At the moment, in the season when the vegetables are changed in greenhouses, the vegetable growers in Jinqizi Town of Anqiu City did not immediately plant the vegetables in the summer after they were planted in Shangyu County, because they were technical advisors at the Red Sun Agricultural Chain Store in Anqiu Liu Jianfu. Under the guidance of the manager, use the time for soil exchange for deep plowing, increase organic matter in the soil, formulate a reasonable fertilizer plan according to the soil conditions, repose the soil to avoid re-emergence of the roots, and serious soil-borne diseases and weak plant growth. And so on.
Increase the depth of the tillage layer. The roots of most vegetables are mainly concentrated in 15-25 cm soil layers. In common rotary cultivators, the cultivating depth is generally about 15 cm to 18 cm. After the rotavator operates, the plough bottom layer is hard and the roots grow downward. Difficulty, the crop will not absorb nutrients below 18 cm. As a result of long-term planting, the physical and chemical properties of the cultivated layer have changed, and the structure of the soil has been destroyed. Therefore, it is recommended that the vegetable farmer increase the depth of the soil layer of the soil, break the original plow bottom layer, and at the same time, on the basis of the original rotation and plowing, the organic fertilizer and fertilizer applied into the ground together with the rotary cultivator hit the soil. , and then deeper with a shovel again, so that you can increase the plough layer of soil to 30 cm, but also broke the plow bottom layer in the soil.
Increase organic matter in the soil. Although the content of organic matter in soil accounts for only a small part of the total amount of soil, it plays an important role in soil structure and fertility. The increase in the content of organic matter in soil can greatly improve the quality of vegetables. At the same time, the increase in organic matter improves the permeability of the soil and the ability to retain fertilizer and water. Taking tomatoes as an example, before the planting, 10-15 chicken manure and other organic fertilizers can be applied at the end of planting. A large loquat planter should also plant 500-800 pounds of high-quality organic fertilizer in the inner plantation. To remind everyone that organic fertilizer must be completely cooked before use, so as not to increase the concentration of salt ions in the soil, resulting in soil compaction.
Reduce fertilizer use. In addition to changing the soil structure of the soil layer during the shelter period, the usual management of fertilizer and water should also pay attention to, many old shed soil surface will have "salt cream", mainly caused by the excessive use of chemical fertilizers, soil salt ion concentration Excessively high, over time, it will result in the consolidation of cultivation layers.
Therefore, according to the growth of each type of vegetable, it is necessary to rationally replenish the fertilizing material, and do not use fertilizer indiscriminately to increase the soil salt content.
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