Several measures to solve the problem of low seedling rate of seedless watermelon

First of all, it is clear that the seedless watermelon seedlings grow weakly and slowly during the seedling period, which is not the case of one person, but a common problem of seedless watermelon. Because seedless watermelons and watermelons need enough stability during the seedling period, they can grow faster only when the temperature is generally higher than 20 degrees Celsius, but early sowing seedless watermelons, especially in the north, the climate can not meet the growth needs of seedless watermelons. In addition, watermelons are easy to wear a seed coat cap during seedling emergence, which restricts the growth of watermelons. Therefore, in the case of the superposition of the above two factors. The growth of seedless watermelons can not be optimistic.

In addition, the method of budding and transplanting is basically adopted for watermelon planting, in this case, rigid seedlings or slow growth will occur because of inappropriate soil nutrition, water, fertilizer and temperature after transplantation. if there is any improper management in the production, the death at the seedling stage is not uncommon. Therefore, it is not surprising that the seedling rate is on the low side.

How to solve the problem of low seedling rate? Strengthening the management of seedling stage is the key. Here are a few measures.

First, raising seedlings in a hotbed

Nursery bed can effectively control the bed temperature and promote the development of seedlings. In the seedling stage, hotbed can provide sufficient temperature and nutrition supply for watermelon seedlings, ensure the normal development of seedlings, and reduce the occurrence of rigid seedlings.

II. Postponement of sowing date

In the sowing time of watermelon, the low temperature is easy to cause the seedling rate of stiff seedlings to be low, and seedless watermelons are not tolerant to low temperature, so the sowing date can be postponed to alleviate the problem of low seedling rate. With the gradual increase of temperature in the later stage, it is also more conducive to the development of seedlings after transplantation. However, the ripening of watermelons will also be delayed.

3. Using nutrition bowl to raise seedlings

At present, the method of budding and transplanting is mostly used in production, but it is easy to appear weak in seedling stage after transplanting small arch shed. For this reason, after budding, the cotyledon seedlings can be transplanted into a nutrition bowl, and then placed in the seedling bed to raise seedlings. The essence of this method is to put the factors affecting seedling emergence within a controllable range and effectively control the temperature and nutrition, so as to promote seedling formation.

For seedless watermelon seedling management is naturally important, but the later production management is also a very key link, only proper production management can promote seedling development. Watermelon seedlings in the seedling stage are fragile, so they should be taken care of carefully.

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