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  • Author or Editor: J. Letey x
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Celery (Apium graveolens cv. Tall Utah 52-70R) was grown with only preplant N (100 kg/ha) or preplant plus 100, 200, or 300 kg/ha of additional N split into equal sidedress applications. Marketable yield and total N uptake significantly increased by the addition of sidedressed N, but there were no significant differences among sidedress treatments. However, increasing increments of N consistently increased early season crop and leaf growth rates and hastened maturity. With only preplant N, growth response was delayed but growth rates continued to increase after those of the side-dressed plants had begun to decrease.

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