Cucumber melon strips yellow, but no spots on cucumber melon strips can rule out the possibility of invasive disease, and judged as a physiological disease. The specific analysis shows that the poor development of cucumber roots in summer is the main cause of melon yellowing. Root dysplasia will affect the growth and development of the whole plant, so that the cucumber will not receive sufficient nutrition, which will cause melon yellow.

Perhaps some vegetable farmers would say: In order to make cucumber nutrients abundant, we have no less fertilizer, ah, how can this happen?

If the cucumber roots are not well developed, it is no use to apply more fertilizer, because the roots are stunted and the fertilizer can not be fully absorbed and the melon strips appear yellow.

In fact, root dysplasia is mostly caused by improper subjective management of vegetable farmers. In this regard, the more summer cucumber management should be based on rooting.

First, change the method of watering after planting

Many vegetable farmers often plant water before they are planted. The disadvantage of this is that the surface layer is rich in water and fertilizer, and the root system develops laterally in the shallow surface layer, which limits the extension of the root system in the future; in addition, the surface soil fertility is highly prone to excessive overgrowth.

If water is poured before planting, roots can be induced to develop in depth. Deep-layered soil has less fertilizer. Before the flowering of vegetables, less fertilizer is absorbed, which makes it difficult to form overly prosperous shortcomings in the shoots. Watering at the same time can also lower ground temperature. It is conducive to the growth of roots and slow seedlings.

Second, protect the leaves and promote rooting

The nutrients needed by the root system are mostly provided by the middle and lower leaves. Therefore, it is not appropriate to remove the lower leaves prematurely, and the diseases in the leaves must be strictly controlled.

Third, rational fertilization, root mulch

Large amounts of fertilizers can easily age or injure capillary roots. Excessive application of basal fertilizer or organic fertilizer can not fully decomposed, can directly cause roots and dead trees; vegetables in the results of a period of flushing and chemical fertilizer is too large, especially the amount of nitrogen fertilizer is too large, it can also cause burning phenomenon.

Appropriate fertilization method is: after applying appropriate amount of basal fertilizer in shallow layer and deep-growing biological fertilizer in planting sites, it can play a multiple role in improving soil, preventing diseases, promoting new roots, and promoting the development of roots in deep roots to form thick roots. . After the vegetable enters the result period, the vegetative growth and the reproductive growth are synchronized. When the fertilizing material is used to ensure that the root system is not damaged, it is necessary to take into consideration the attack of the tree and also to pay attention to the attack. Therefore, it is not appropriate to apply excessive nitrogen fertilizer, and appropriate amount of high-quality compound should be used. fat. In addition, if the temperature is too high, the amount of chemical fertilizers should be reduced, and biological fertilizers should be added to ensure the normal growth of the root system.

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Specification: 

Grading Machine

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