Raoliang Town peasant Li Changjun asked: I transplanted my cotton seedlings and started to grow cotton seedlings neatly. After the cotton seedlings emerged, the cotton leaves began to turn pale green. Within a few days, the leaf color turned to dark green, a true leaf. It is not clear why cotton seedlings have been wilted and died. Will you buy expired Chen seeds?
A: According to the symptoms of the cotton seedlings you describe, the seedlings are produced well. This shows that the quality of cotton seedlings is not a problem. The problem is that too much fertilizer is applied at the bottom of the seedbed, the soil solution concentration is too high, and moisture in the roots of cotton seedlings is reversed. Infiltration, causing the cotton seedlings to wilt. As you said, each seedbed (10 meters in length and 1.3 meters in width) is applied with 3 kg of high-content compound fertilizer, which is equivalent to 153.4 kg of high-rate compound fertilizer per acre seedbed, which seriously exceeds the fertilization standard. The fertilizer damage seedlings. In fact, 1.5 kg of ternary compound fertilizer is sufficient for each seedbed.
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