Effect of the Amount and Timing of Ammonium Sulfate Single Top-dressing Application on Growth and Yield of Akitakomachi Rice (Oryza sativa L.). AJAFS [Internet]. 2021 Dec. 31 [cited 2026 Mar. 3];9(6). Available from: https://ajouronline.com/index.php/AJAFS/article/view/6825