TY - CHAP AU - Toshio Sugimoto AU - Naoki Yamamoto AU - Takehiro Masumura ED - Takuji Ohyama ED - Kazuyuki Inubushi Y1 - 2021-04-01 PY - 2021 T1 - Nitrogen Fixation in Soybean Nodules Affects Seed Protein and Oil Contents: The Suggested Mechanism from the Coordinated Changes of Seed Chemical Compositions and Phosphoenolpyruvate Carboxylase Activity Caused by Different Types of Nitrogen Fertilizer N2 - Nitrogen is the most important nutrient in agricultural practice because the availability of nitrogen from the soil is generally not enough to support crop yields. To maintain soil fertility, the application of organic matters and crop rotation have been practiced. Farmers can use convenient chemical nitrogen fertilizers to obtain high crop yields. However, the inappropriate use of nitrogen fertilizers causes environmental problems such as nitrate leaching, contamination in groundwater, and the emission of N2O gas. This book is divided into the following four sections: “Ecology and Environmental Aspects of Nitrogen in Agriculture”, “Nitrogen Fertilizers and Nitrogen Management in Agriculture”, “N Utilization and Metabolism in Crops”, “Plant-Microbe Interactions”. BT - Nitrogen in Agriculture SP - Ch. 6 UR - https://doi.org/10.5772/intechopen.96795 DO - 10.5772/intechopen.96795 SN - 978-1-83968-492-0 PB - IntechOpen CY - Rijeka Y2 - 2024-04-26 ER -