Potato planting density

The yield factors that make up the potato are the product of the number of trees per unit area and the yield per plant. The yield per plant was determined by the number of single tubers and the weight of single tubers. There is a contradiction between the increase in population and the increase in yield per plant. When the number of plants per unit area increased, the yield per plant decreased correspondingly, both of which had a certain dependency on the planting density. Within a certain density range, the yield of the population increased with the increase of the density; the yield per plant decreased with the increase of the density. Therefore, the determination of density must consider the harmonization of the two contradictory factors of population yield and individual yield.

If the density is small, although the single plant is well developed and the yield is high, the total number of plants per unit area is small, the number of tubers is less, and the yield is not high. If the density is too high, although the total number of plants is large, the single potato weight is lower and the same yield is not high. Therefore, the rational close planting is to make a reasonable group structure within the unit area, which can not only make individuals develop well, but also can exert the group's production increase effect, so as to make full use of light energy and land force, and thus obtain high yield. Considering the coordinated development of populations and individuals, the potato has about 6,000 plants per acre under the general cultivation level, and each plant has 2-3 stems.

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