References
- Bartholomew, R. P., and G. Janssen. 1929. Luxury consumption of potassium by plants and its significance. Agronomy Journal 21 (7):751–65. doi: 10.2134/agronj1929.00021962002100070005x.
- Basra, S. M. A., W. Nouman, H. Rehman, M. Usman, and Z. Nazli. 2015. Biomass production and nutritional composition of Moringa oleifera under different cutting frequencies and planting spacings. International Journal of Agriculture and Biology 17:1055–60. doi: 10.17957/IJAB/15.0076.
- Ben-Dor, E., and A. Banin. 1989. Determination of organic matter content in arid-zone soils using a simple “loss-on-ignition” method. Communications in Soil Science and Plant Analysis 20:1675–95. doi: 10.1080/00103628909368175.
- Berg, W. K., S. M. Cunningham, S. M. Brouder, B. C. Joern, K. D. Johnson, J. Santini, and J. J. Bolenec. 2005. Influence of phosphorus and potassium on alfalfa yield and yield components. Crop Science. 45:297–304.
- Bremner, J. M. 1996. Nitrogen-total. In Methods of soil analysis. Part 3. Chemical methods, ed. D. L. Sparksr, 1085–122. SSSA Book Series 5. Madison, WI: SSSA. doi: 10.2136/sssabookser5.3.c37.
- Fagbenro, J. A., S. O. Oshunsanya, and B. A. Oyeleye. 2015. Effects of Gliricidia biochar and inorganic fertilizer on Moringa plant grown in an oxisol. Communications in Soil Science and Plant Analysis 46 (5):619–26. doi: 10.1080/00103624.2015.1005222.
- Greweling, T. 1976. Chemical analysis of plant tissue. Agronomy Handbook 6. Ithaca, NY: Cornell University Agricultural Experiment Station.
- Hamza, A. A. 2010. Ameliorative effects of Moringa oleifera Lam seed extract on liver fibrosis in rats. Food and Chemical Toxicology 48 (1):345–55. doi: 10.1016/j.fct.2009.10.022.
- Heady, E. O., J. T. Pesek, and W. G. Brown. 1955. Crop response surfaces and economic optima in fertilizer use. Research Bulletin 424. Ames, IA: Tennessee Valley Authority Cooperating, Agricultural Experiment Station, Iowa State College.
- Helmke, P. A., and D. L. Sparks. 1996. Lithium, sodium, potassium, rubidium, and cesium. In Methods of soil analysis. Part 3. Chemical methods, ed. D. L. Sparks, 551–74. SSSA Book Series 5. Madison, WI: SSSA. doi: 10.2136/sssabookser5.3.c37.
- Jones, J. B., Jr., B. Wolf, and H. A. Mills. 1991. Plant analysis handbook. Athens, GA: Micro-Macro Publishing.
- Kholif, A. E., G. A. Gouda, T. A. Morsy, A. Z. M. Salem, S. Lopez, and A. M. Kholif. 2015. Moringa oleifera leaf meal as a protein source in lactating goat’s diets: feed intake, digestibility, ruminal fermentations, milk yield and composition, and its fatty acids profile. Small Ruminant Research 129:129–37. doi: 10.1016/j.smallrumres.2015.05.007.
- Lockett, C. T., C. C. Calvert, and L. E. Grivetti. 2000. Energy and micronutrient composition of dietary and medicinal wild plants consumed during drought. Study of rural Fulani, Northeastern Nigeria. Internaional Journal of Food Sciences and Nutrition 51:195–208.
- Mallarino, A. P., and S. L. Higashi. 2009. Assessment of potassium supply for corn by analysis of plant parts. Soil Science Society of America Journal 73 (6):2177–83. doi: 10.2136/sssaj2008.0370.
- McLean, E. O. 1982. Soil pH and lime requirement. In Methods of soil analysis. Part 2. Chemical and microbilogical properties, eds. A. L. Page, D. D. Evans, J. L. White, L. E. Ensminger, and F. E. Clark, 199–224. Agronomy Monographs 9. Madison, WI: ASA and SSSA. doi: 10.2134/agronmonogr9.2.2edc12.
- Mendieta-Araica, B., E. Sporndly, N. R. Sanchez, R. Salmeron-Miranda, and M. Halling. 2013. Biomass production and chemical composition of Moringa oleifera under different planting densities and levels of nitrogen fertilization. Agroforestry Systems 87 (1):81–92. doi: 10.1007/s10457-012-9525-5.
- Mills, H. A., and J. B. Jones. 1996. Plant analysis handbook II, 2nd ed. Athens, GA: Micro-Macro Publishing.
- Nouman, W., M. T. Siddiqui, S. M. A. Basra, H. Farooq, M. Zubair, and T. Gull. 2013. Biomass production and nutritional quality of Moringa oleifera as a field crop. Turkish Journal of Agriculture and Forestry 37:410–9.
- Olsen, R. R., and L. E. Sommers. 1982. Phosphorus. In Methods of soil analysis, Part 2, ed. A. L. Page, R. H. Miller, and A. G. Norman, End ed., 403–30. Agronomy No. 9. Madison, WI: ASA.
- Ramachandran, C., K. V. Peter, and P. K. Gopalakrishnan. 1980. Drumstick (Moringa oleifera): a multipurpose Indian vegetable. Economic Botany 34 (3):276–83. doi: 10.1007/BF02858648.
- Randall, G. W., S. D. Evans, and T. K. Iragavarapu. 1997. Long-term P and K applications: II. Effect on corn and soybean yields and plant P and K concentrations. Journal of Production Agriculture 10 (4):572–80. doi: 10.2134/jpa1997.0572.
- Sana, A. R S., and S. Faizi. 2015. Hypotensive activity of Moringa oleifera Lam (Moringaceae) root extracts and its volatile constituents. Tropical Journal of Pharmaceutical Research 14:823–30. doi: 10.4314/tjpr.v14i5.12.
- Sanchez, N. R., S. Ledin, and I. Ledin. 2006. Biomass production and chemical composition of Moringa oleifera under different management regimes in Nicaragua. Agroforestry Systems 66:231–42. doi: 10.1007/s10457-005-8847-y.
- Schlegel, A. J., and J. L. Havlin. 2017. Corn yield and grain nutrient uptake from 50 years of nitrogen and phosphorus fertilization. Agronomy Journal 109 (1):335–42. doi: 10.2134/agronj2016.05.0294.
- Ulrich, A., and F. J. Hills. 1967. Principles and practices of plant analysis. In Soil testing and plant analysis, Part II, eds. C. W. Hardy, A. R. Halvorson, J. B. Jones, R. D. Munson, R. D. Rouse, T. W. Scott, and B. Wolf, 11–24. SSSA Special Publication Series No. 2. Madison, WI: Soil Sci Society of America.
- Usherwood, N. R., and W. I. Segars. 2001. Nitrogen interactions with phosphorus and potassium for optimum crop yield, nitrogen use effectiveness, and environmental stewardship. The Scientific World Journal 1 (S2):57–60. doi: 10.1100/tsw.2001.97.