Use black yuanjia, easily control the yellowing of cucumber leaves!

Recently, many cucumber growers have reported serious yellowing of leaves in the greenhouse, with some occurring in the middle and lower leaves, some the new leaves, some in the tender leaves in the middle and upper parts, and some even reaching the point of complete loss of yield and harvest, simply pulling out the garden, is the reason for the yellowing of your cucumber leaves? In fact, there are several possibilities for the change in cucumber leaves: 1. The yellowing ofumber leaves caused by changes in the external environment and the solution Any plant has its own suitable production temperature. When the temperature, humidity and light suddenly change too much, it cause the physiological yellowing of cucumber leaves. Cucumber is a typical thermophilic plant, and its suitable temperature for growth is 10～3℃. The suitable temperature during the day is relatively high, about 25～32℃, and the suitable temperature at night is relatively low, about 15～8℃. The suitable temperature for photosynthesis is 25～32℃. Therefore, by meeting the above environmental conditions, we can prevent and treat the yellowing cucumber leaves.

2. Leaf yellowing caused by nutrient deficiency and solutions Cucumbers also have a high demand for trace elements, such as magnesium, boron iron, zinc, calcium, etc. If there is a significant shortage of these elements, it will reduce the quality of the cucumber plant, fruit, etc. Therefore, during mid-late fertilization process, it is also necessary to supplement these trace elements. You can use Baidewei calcium, magnesium, boron, iron, zinc to supplement nutrients needed for cucumber growth and improve the quality of the cucumber plant and cucumber.

Three, the yellowing of the edges of the leaves caused by root injury and the solution Because of farming operations, the root system is itself, or because of watering, etc., which causes the roots to rot, will reduce the ability of the roots to absorb nutrients, causing the edges of the leaves to turn. It is necessary to apply fertilizers to nourish the roots and promote the growth of the roots in time. At this time, soil conditioning becomes very necessary. We can use black yuanjia microbial agent. Baiweide's black yuanjia microbial agent is rich in effective live bacteria, which can not only improve the soil, rooting and rooting, control vigor and promote flowering, promote fruit swelling and color change, but also stimulate plant potential, improve crop resistance, and increase production. Before using the black yuanjia, the lower leaves were seriously yellowed, and after using the black yuanjia, the upper leaves turned green significantly, and the growth of dragon head was restored. The growth of cucumber after using the black yuanjia is vigorous:

Prevention of cucumber yellowing and premature senescence and other issues. It is recommended to use Hei Yuan Jia from seedling stage, bucket can be used for 3 mu of land, and it can be used together with any fertilizer!