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- [1] INVESTIGATIONS ON THE NITROGEN NUTRITION OF PEA PLANTSPLANT AND SOIL, 1948, 1 (02) : 179 - 212MULDER, EG
- [2] A new method for the determination of ammoniacal nitrogen in soilsJOURNAL OF AGRICULTURAL SCIENCE, 1924, 14 : 548 - 554McLean, WRobinson, GW
- [3] DETERMINATION OF THE CAPACITY OF SOILS TO MINERALIZE NITROGEN AS AN INDICATION OF THEIR NITROGEN REGIME .1. METHOD OF DETERMINING THE CAPACITY OF SOIL TO MINERALIZE NITROGENSOVIET SOIL SCIENCE, 1988, 20 (01): : 117 - 125BASHKIN, VNKUDEYAROV, VN
- [4] INVESTIGATIONS OF NITROGEN COMPOUNDS AND NITROGEN METABOLISM IN PLANTS .1. THE REACTION OF NITROGEN COMPOUNDS WITH NINHYDRIN ON PAPER - A QUANTITATIVE PROCEDUREPLANT PHYSIOLOGY, 1951, 26 (02) : 375 - 397THOMPSON, JFZACHARIUS, RMSTEWARD, FC
- [5] NITROGEN REQUIREMENT OF CEREALS .1. RESPONSE CURVESJOURNAL OF AGRICULTURAL SCIENCE, 1976, 87 (AUG): : 149 - 162BOYD, DAYUEN, LTKNEEDHAM, P
- [7] RESPONSE OF PLANTS TO NITROGEN NUTRITION .1. EFFECTS OF INTERRUPTION OF THE NITRATE SUPPLY AND AERATION OF THE NUTRIENT SOLUTION ON ABSORPTION AND DISTRIBUTION OF NITROGEN IN MAIZE PLANTSPROCEEDINGS OF THE KONINKLIJKE NEDERLANDSE AKADEMIE VAN WETENSCHAPPEN SERIES C-BIOLOGICAL AND MEDICAL SCIENCES, 1984, 87 (03) : 319 - 326SPEK, LY
- [8] Nitrogen nutrition in plants: rapid progress and new challengesJOURNAL OF EXPERIMENTAL BOTANY, 2017, 68 (10) : 2457 - 2462Gojon, Alain
- [9] STUDIES ON NITROGEN IN MALAYSIAN SOILS .1. NATIVE FIXED AMMONIUM NITROGENJOURNAL OF THE RUBBER RESEARCH INSTITUTE OF MALAYSIA, 1981, 29 : 34 - 43HUAT, TK
- [10] MATERNAL NUTRITION .1. URINARY UREA NITROGEN TOTAL NITROGEN RATIO AS AN INDEX OF PROTEIN NUTRITIONAMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY, 1972, 114 (02) : 198 - &BEYDOUN, SNAUBRY, RHEVANS, LPCUENCA, VG