The main reasons why three-crop rice is not as good as two-cropping rice are as follows:
First of all, the growth period of three-crop rice is long, and it needs to go through three seasons, so it is more susceptible to the influence of the natural environment, such as climate change, pests and diseases, etc. In contrast, the growth period of two-crop rice is shorter and less affected by the natural environment.
Secondly, the planting technology of three-cropping rice is more demanding, and more input and management are required. Due to the long planting time, more inputs such as fertilizers and pesticides are required, and more labor is also required to manage them. This not only increases the cost of planting, but also increases the difficulty of planting.
In addition, the yield of three-crop rice is not as good as that of two-cropping rice. Due to the long growth cycle of three-crop rice, the nutrient accumulation is not as good as that of two-cropping rice, and the yield is relatively low. However, the yield of two-cropping rice is relatively high due to its short growth cycle, sufficient nutrient accumulation, and simple management.
Finally, the market competitiveness of three-crop rice is not as good as that of two-cropping rice. Due to the high planting cost and low yield of three-season rice, it is difficult to compete with two-season rice. The planting cost of two-cropping rice is low, the yield is high, the ** is relatively low, and it is more competitive in the market.
To sum up, the three-crop rice is not as good as the two-crop rice mainly due to its long growth period, high planting technology requirements, low yield, and high quality. Therefore, in agricultural production, it is more appropriate to choose to grow two crops of rice instead of three crops.