In agricultural production, the soil's fertility is sufficient, which is the most basic guarantee for high yield of crops. So, how to distinguish whether the soil fertility of a piece of land is sufficient? Next, let's take a look at the formation factors of soil fertility and the method of judging the degree of soil fertility.
Soil fertility can be divided into two types according to formation factors.
Divided into natural fertility and artificial fertility, the two do not conflict, but complement each other. Only natural fertility and artificial fertility can be combined to win high yields.
1 Natural fertility: Natural fertility usually refers to land that has not been reclaimed. It is naturally born by the influence of natural conditions such as climate, topography, biology, and soil parent material.
2 Artificial fertility: Artificial fertility includes the soil fertility formed by human factors in farming activities such as cultivation, fertilization, and irrigation.
3 fertility factors: nutrients, moisture, air, heat.
These tips can be used to identify soil fertility
Identify from the soil itself
1 Color: The soil with sufficient fertility is darker, such as the black soil in the northeast, which is very fertile.
2 Viewing depth: The soil with sufficient fertility usually has a layer of more than 60 cm.
3 Viewing soil: The soil with sufficient fertility is loose and easy to cultivate.
4 Water retention: The soil with sufficient fertility has strong water retention capacity, and the water is slowed down and kept for a long time.
In addition, fertile soil is not easy to be pulped, and soil cracks are numerous and small.
Distinguish from external factors
1 If there is a lot of red head sauce, goose grass, valerian and other plants outside the land, then it is fat soil; growing cattle grass, ragweed, lentils, wild orchids, wild onions, etc. are lean soil.
2 There are snails, loach, dragonflies, big grasshoppers, etc. for the soil; small ants, big ants, etc. are mostly lean soil.
3 There is a night tide, dry and wet, not easy to dry and hard for the soil; no night tide phenomenon, soil compaction is hard soil.
As for how to correctly judge the soil fertility, it can be said that in daily farming, grassland rotation and green manure can be used to increase the organic content of the soil, and the soil becomes more and more fertile, so that the yield is higher and higher.
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