Pronitridine and Nitrapyrin With Anhydrous Ammonia for Corn

Singh, Gurbir and Nelson, Kelly A. (2019) Pronitridine and Nitrapyrin With Anhydrous Ammonia for Corn. Journal of Agricultural Science, 11 (4). p. 13. ISSN 1916-9752

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Abstract

Nitrogen (N) losses due to leaching, denitrification and/or ammonia volatilization are of utmost concerns since they reduce farm profitability and adversely affect environmental quality. To combat these N losses, a new nitrification inhibitor (NI), pronitridine, can be used to slow down the nitrification process. A two-year (2014, 2015) field experiment was conducted to evaluate the effectiveness of pronitridine at different rates (9.4, 18.7, and 28.1 L ha-1) with anhydrous ammonia (AA) at 112 kg N ha-1 when applied in the fall or pre-plant on claypan soils in northeast Missouri. Using pronitridine at 9.4 L ha-1 with AA in the fall during a low yielding year (2015) increased corn grain yield 7% compared to AA + nitrapyrin (2.3 L ha-1). Agronomic efficiency and yields were greatest with pronitridine at 9.4 L ha-1 than AA + nitrapyrin. Grain N removal was highest for AA + pronitridine at 18.7 L ha-1 compared to AA + nitrapyrin. Pre-plant application of AA + pronitridine at 9.4 L ha-1 increased grain starch content compared to AA without NI, but it was not significantly different from AA + nitrapyrin. Results indicated that pronitridine was effective in increasing yields when applied in the fall and was similar to other NI’s when applied pre-plant in the spring.

Item Type: Article
Subjects: Asian STM > Agricultural and Food Science
Depositing User: Managing Editor
Date Deposited: 12 May 2023 05:29
Last Modified: 15 Jan 2024 04:20
URI: http://journal.send2sub.com/id/eprint/1425

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