Hollow squash hollow for the following reasons:
1. Insufficient water supply during the expansion period. The squash is the period with the largest amount of water in the life of red squash, and it is also the period most sensitive to water shortage. During this period, there is drought and water shortage, and the pulp cells will be hollow due to insufficient water supply to cause the expansion to be slower than the peel.
2. The temperature is low. The weather is hot and cold, long-term low temperature is about 15 °C, so that the longitudinal growth rate of melons slows, and the lateral growth rate is accelerated, the growth rate of melons can not keep up with the fruit's expansion rate and hollow.
3. Improper management. In the period of rapid fruit enlargement, if the plant suffers from premature senescence due to lack of water, lack of fertilizers, and pests and diseases, it will also be hollow due to malnutrition.
4. Variety factors. Plant new varieties at the right time, eliminate old varieties, and choose varieties that are not easily hollow, such as short-grained, high-yield king, double happiness, and red show.
After the expansion period, water and fertilizer management should be strengthened, the proportion of phosphorus and potassium fertilizers should be appropriately increased, the weather should be taken into account, nutrition should be added in time, pests and diseases should be actively controlled, and timely harvested.
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