八郎潟干拓地における水稲生産力に及ぼす田畑輪換の効果 II 輪換水田における水稲の下層土からの窒素吸収量の評価と無機化窒素量の推定
Effect of paddy-upland rotation management on the productivity of rice in Hachirogata reclaimed fields. (Part 2.) Evaluation and estimation of soil nitrogen mineralization and nitrogen uptake by rice plants from subsoil of paddy fields rotated from upland fields.