Factors affecting immobilization and release of nitrogen in soil and chemical characteristics of the nitrogen newly immobilized part 4 chemical nature of the organic nitrogen becoming decomposable due to the drying of soil Ahmad, Z.; Yahiro, Y.; Kai, H.; Harada, T. Soil Science and Plant Nutrition 19(4): 287-298 1973 https://eurekamag.com/research/026/618/026618659.php