How to Increase Potato Yield by Reasonable Close Planting

The yield factor of potato is the product of the number of plants per unit area and the yield per plant. The yield per plant is determined by the number and weight of potato. There is a contradiction between increasing the yield of a group and increasing the yield of a single plant. When the number of plants per unit area increased, the yield per plant decreased correspondingly, both of which had a certain dependence on planting density. Within a certain density range, the yield of the population increases with increasing density; the yield of a single plant decreases with increasing density. Therefore, the determination of density must consider the two conflicting 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 yield per mu will not be very high because the total number of plants per unit area is small. If the density is too large, although the total number of plants is large, the weight of single potato is very low, and the yield is also not high. Therefore, reasonable dense planting is to make a reasonable group structure within the unit area, which can not only make the individual develop well, but also give play to the role of the group to increase production, in order to make full use of light energy and fertility to achieve high yield. Considering the coordinated development of groups and individuals, under normal cultivation level, about 6000 plants per acre are planted, and 2-3 stems per plant are more suitable.

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