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Corn yellow leaf seedlings
Causes of corn yellow leaf seedlings: Seeds are not full, seedlings are not strong; sown too deep, weak seedlings; excessive density, affect fertility; lack of soil fertilizer. Control measures: First, the selection of fine seeds before sowing, single-seeded grains, mold grain, bad grain, small grain, to ensure that the seeds of the degree of purity, purity are more than 98%, the germination rate of more than 90%. The second is germination sowing, seed coating or fertilizer soaking. The third is the appropriate time seedlings, in the 3 to 4 leaves of corn when removed seedlings, weak seedlings, diseased seedlings and field weeds. The fourth is after the seedlings, make-up nitrogen fertilizer, and promote seedlings sooner. The fifth is that there are dry clumps before and after emergence, and dry clumps should be broken in time.