Explain why three-season rice is not as good as two-season rice with economic principles.

The law of diminishing marginal production exists in all sectors, but it is most prominent in agriculture. The fact that three-season rice is not as good as two-season rice illustrates this point. Under the condition of agriculture or traditional production technology, land, equipment, water resources and fertilizer are all fixed production factors. Changing two-season rice into three-season rice did not change these fixed factors of production, but only increased the labor and seeds of variable factors of production.

Extended data:

Declining law:

In the absence of major changes in production technology, factors of production can be divided into fixed factors of production and variable factors of production in the short term. When the fixed factors of production remain unchanged and the variable factors of production increase, the change of output is divided into three stages.

At first, with the increase of variable factors of production and the full use of fixed factors of production, marginal products (that is, increased output) increased, and the total output increased at an increasing rate. Then, as the fixed factors of production are nearly fully utilized, the output increase caused by the increase of variable factors of production can still be positive, but the growth rate decreases. At this time, the total output is still increasing, but the speed is decreasing.

Finally, when the factors of production are fully utilized, the increase of production variables will make the marginal product less than zero, and the total output will definitely decrease. For example, a bakery has two fixed ovens. When the number of workers as a variable factor of production increases from 1 to 2, the marginal product and total output of bread will increase.

If it is increased to three workers and 1 worker is employed as a handyman, the total output will still increase, although the output increased by this worker is not as good as that of the second worker (the marginal product decreases). If a fourth worker is added, the bakery will be crowded and there will be contradictions among the workers, but the total output will be reduced.

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