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Residual effects of labeled N in field trials



Residual effects of labeled N in field trials



Agronomy Journal 72(2): 325-329



Field trials utilizing 15N-depleted fertilizer were conducted over a 6-year period at two locations in California, to measure residual effects of N application. On Yolo fine sandy loam (Typic xerorthent) the residual value of the previous year's fertilizer varied from negligible to 23% of the total crop uptake, depending on the N application rate and the amount of irrigation water applied. These values were equivalent to 5 to 91 kg N/ha.

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Accession: 000969551

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