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Different kinds and levels of nitrogen in tomatoes

Different kinds and levels of nitrogen in tomatoes

Acta Horticulturae ( 277): 179-182

In 2 years, tomato plants of a cultivar for peeling were grown on trial plots on a sandy clay soil of pH 5.6. All plots were given P at 150 kg/ha and K at 200 kg/ha but N was given in 2 forms (ammonium sulfate or calcium ammonium nitrate) at 75, 125 or 175 kg/ha. The highest yields were obtained with 175 kg N, in either form, but there were more fruits/plant with calcium ammonium nitrate.

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