Recently, many people like to grow spinach, but the spinach begins to appear yellowing of the leaves. This is the lack of oxygen in the spinach. So, what about the lack of nitrogen in spinach?
Recently, the spinach grown in my family has turned yellow, green and pale, and we have consulted the relevant experts of the small horn agricultural net. He told us that this is caused by nitrogen deficiency of spinach, as long as fertilization is done. This condition of spinach can be slowly improved.
Spinach anoxic fertilization method:
Apply enough base fertilizer, 2000-3000 kg of fertilization and fertilizer, 30-35 kg of phosphate fertilizer, and 10-15 kg of potash fertilizer. When 2-3 pieces of true leaves, combine the seedlings for 1 time, and apply 7.5-10 kg of urea per mu. 6-7 leaf stage application of urea 15-20 kg. Wintering cultivation of spinach, when the temperature is stable after spring (not freezing), such as the surface soil drought, when the seedling leaves are green, it is necessary to pour back the green water early. Autumn spinach, 2 leaves combined with seedlings and topdressing 1 time, 4-5 leaves when watering and topdressing, mainly available nitrogen fertilizer. During the growth of spinach, the soil should be kept moist. In case of drought, it should be timely watered or combined with top dressing for nitrogen fertilizer.
Therefore, if our crops do not care about pests and diseases, don't worry or panic, please consult relevant experts in time, take the correct approach, I believe we can get better!
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