Reference list

The full Harvard references behind the clips on the Soil science page, in alphabetical order. References by clip shows which clip uses which source.

  • Agehara, S. and Warncke, D.D. (2005) 'Soil moisture and temperature effects on nitrogen release from organic nitrogen sources', Soil Science Society of America Journal, 69(6), pp. 1844-1855. Link
  • AHDB (2023) Nutrient management guide (RB209). Section 2: Organic materials. Updated June 2023. Coventry: Agriculture and Horticulture Development Board. Link
  • Albrecht, W.A. (1975) The Albrecht Papers, Vol. 1: Foundation Concepts. Edited by C. Walters. Kansas City: Acres U.S.A. (Origin of the cation balancing idea, not proof of it.) Link
  • Allen, R.G., Pereira, L.S., Raes, D. and Smith, M. (1998) Crop Evapotranspiration: Guidelines for Computing Crop Water Requirements. FAO Irrigation and Drainage Paper 56. Rome: FAO. Chapter 3, Meteorological data, equation 11. Link
  • Allen, R.G., Pereira, L.S., Raes, D. and Smith, M. (1998) Crop evapotranspiration: guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56. Rome: FAO. Chapter 3, 'Meteorological data' (saturation vapour pressure and vapour pressure deficit). Link
  • Allen, R.G., Pereira, L.S., Raes, D. and Smith, M. (1998) Crop evapotranspiration: guidelines for computing crop water requirements. FAO Irrigation and Drainage Paper 56. Rome: Food and Agriculture Organization of the United Nations. Chapter 7, 'ETc: dual crop coefficient (Kc = Kcb + Ke)', and Chapter 10, 'ETc under various management practices'. Link
  • Almeida, K.V., Jordan, E., Erickson, P.S. and Brito, A.F. (2024) 'Evaluating taste preference of different sources of Ascophyllum nodosum meal in dairy heifers', JDS Communications, 5(5), pp. 421-425. Link
  • Alori, E.T., Glick, B.R. and Babalola, O.O. (2017) 'Microbial phosphorus solubilization and its potential for use in sustainable agriculture', Frontiers in Microbiology, 8, 971. Link
  • Anderson, K. (2026) 'Inside the first controlled cannabis airflow trial with Dr. Allison Justice', Cultivation Elevated, season 2, episode 50. Pipp Horticulture, 1 May 2026. Link
  • Anderson, K. (2026) 'Replacing myths with data: what cannabis growers can finally learn about airflow', Pipp Horticulture blog, 13 February 2026. (Reports the Cannabis Research Center and Coalition airflow trials led by Dr Allison Justice.) Link
  • Argo, W.R. and Biernbaum, J.A. (1996) 'The effect of lime, irrigation-water source, and water-soluble fertilizer on root-zone pH, electrical conductivity, and macronutrient management of container root media with impatiens', Journal of the American Society for Horticultural Science, 121(3), pp. 442-452. Link
  • ASHRAE (2021) 2021 ASHRAE Handbook: Fundamentals. Atlanta: ASHRAE. Chapter 1, Psychrometrics. Link
  • ASTM International (2022) ASTM D8196-22 Standard practice for determination of water activity (aw) in cannabis flower. West Conshohocken: ASTM International. Link
  • ASTM International (2022) ASTM D8197-22 Standard specification for maintaining acceptable water activity (aw) range (0.55 to 0.65) for dry cannabis flower intended for human/animal use. West Conshohocken: ASTM International. Link
  • Ayers, R.S. and Westcot, D.W. (1985) Water quality for agriculture. FAO Irrigation and Drainage Paper 29, Rev. 1. Rome: Food and Agriculture Organization of the United Nations. Table 1, Guidelines for interpretation of water quality for irrigation. Link
  • Ballance Agri-Nutrients (2026) Pure Dolomite (product page, ref 13427). Mount Maunganui: Ballance Agri-Nutrients. Link
  • Ballance Agri-Nutrients (2026) Pure Gypsum (product page, ref 13428). Mount Maunganui: Ballance Agri-Nutrients. Link
  • Ballance Agri-Nutrients (2026) Pure Sulphate of Potash (product page, ref 10543). Mount Maunganui: Ballance Agri-Nutrients. Link
  • Bardgett, R.D. and van der Putten, W.H. (2014) 'Belowground biodiversity and ecosystem functioning', Nature, 515(7528), pp. 505-511. Link
  • Barrow, N.J. and Hartemink, A.E. (2023) 'The effects of pH on nutrient availability depend on both soils and plants', Plant and Soil, 487(1), pp. 21-37. Link
  • Bary, A.I., Cogger, C.G. and Sullivan, D.M. (2016) Fertilizing with manure and other organic amendments. PNW 533. Pullman: Washington State University Extension (a Pacific Northwest Extension publication). Link
  • Beegle, D.B. and Durst, P.T. (2017) Managing Phosphorus for Crop Production. University Park, PA: Penn State Extension. Link
  • Beegle, D.B. and Lingenfelter, D.D. (2014) Soil Acidity and Aglime. University Park, PA: Penn State Extension. Page updated 17 November 2014. Link
  • Beerling, D.J., Epihov, D.Z., Kantola, I.B., Masters, M.D., Reershemius, T., Planavsky, N.J., Reinhard, C.T., Jordan, J.S., Thorne, S.J., Weber, J., Val Martin, M., Freckleton, R.P., Hartley, S.E., James, R.H., Pearce, C.R., DeLucia, E.H. and Banwart, S.A. (2024) 'Enhanced weathering in the US Corn Belt delivers carbon removal with agronomic benefits', Proceedings of the National Academy of Sciences, 121(9), e2319436121. Link
  • Besserer, A., Puech-Pagès, V., Kiefer, P., Gomez-Roldan, V., Jauneau, A., Roy, S., Portais, J.-C., Roux, C., Bécard, G. and Séjalon-Delmas, N. (2006) 'Strigolactones stimulate arbuscular mycorrhizal fungi by activating mitochondria', PLoS Biology, 4(7), e226. Link
  • Bonkowski, M. (2004) 'Protozoa and plant growth: the microbial loop in soil revisited', New Phytologist, 162(3), pp. 617-631. Link
  • Breuillin, F. et al. (2010) 'Phosphate systemically inhibits development of arbuscular mycorrhiza in Petunia hybrida and represses genes involved in mycorrhizal functioning', The Plant Journal, 64(6), pp. 1002-1017. Link
  • Brown, P.H., Bellaloui, N., Wimmer, M.A., Bassil, E.S., Ruiz, J., Hu, H., Pfeffer, H., Dannel, F. and Römheld, V. (2002) 'Boron in plant biology', Plant Biology, 4(2), pp. 205-223. Link
  • Browning, S. (2019) Using Wood Ash in the Garden. Lincoln, NE: Nebraska Extension in Lancaster County, University of Nebraska-Lincoln. 1 November 2019. Link
  • Brundrett, M.C. and Tedersoo, L. (2018) 'Evolutionary history of mycorrhizal symbioses and global host plant diversity', New Phytologist, 220(4), pp. 1108-1115. Link
  • Buirs, L., Lung, S. and Punja, Z.K. (2025) 'The epidemiology and management of Botrytis cinerea causing bud rot on greenhouse cultivated cannabis (Cannabis sativa L.)', Canadian Journal of Plant Pathology, 47(5), pp. 443-463. Link
  • Canna (n.d.) 'Interactions between nutrients', Canna Canada. Link
  • Cannatrol (no date) Cool Cure C Series: Setup and Operating Guide. Cannatrol help centre. Link
  • Caplan, D., Stemeroff, J., Dixon, M. and Zheng, Y. (2018) 'Vegetative propagation of cannabis by stem cuttings: effects of leaf number, cutting position, rooting hormone, and leaf tip removal', Canadian Journal of Plant Science, 98(5), pp. 1126-1132. Link
  • Cassity-Duffey, K., Cabrera, M., Gaskin, J., Franklin, D., Kissel, D. and Saha, U. (2020) 'Nitrogen mineralization from organic fertilizers and composts: literature survey and model verification', Soil Science Society of America Journal, 84(2), pp. 522-533. Link
  • Chaganti, V.N. and Culman, S.W. (2017) 'Historical perspective of soil balancing theory and identifying knowledge gaps: a review', Crop, Forage & Turfgrass Management, 3(1), pp. 1-7. Link
  • Chaganti, V.N., Culman, S.W., Herms, C., Sprunger, C.D., Brock, C., Leiva Soto, A. and Doohan, D. (2021) 'Base cation saturation ratios, soil health, and yield in organic field crops', Agronomy Journal, 113(5), pp. 4190-4200. Link
  • Chalker-Scott, L. (1999) 'Environmental significance of anthocyanins in plant stress responses', Photochemistry and Photobiology, 70(1), pp. 1-9. Link
  • Chandra, S., Lata, H., Khan, I.A. and ElSohly, M.A. (2008) 'Photosynthetic response of Cannabis sativa L. to variations in photosynthetic photon flux densities, temperature and CO2 conditions', Physiology and Molecular Biology of Plants, 14(4), pp. 299-306. Link
  • Chandra, S., Lata, H., Khan, I.A. and ElSohly, M.A. (2011) 'Temperature response of photosynthesis in different drug and fiber varieties of Cannabis sativa L.', Physiology and Molecular Biology of Plants, 17(3), pp. 297-303. Link
  • Chitarra, G.S., Breeuwer, P., Nout, M.J.R., van Aelst, A.C., Rombouts, F.M. and Abee, T. (2003) 'An antifungal compound produced by Bacillus subtilis YM 10-20 inhibits germination of Penicillium roqueforti conidiospores', Journal of Applied Microbiology, 94(2), pp. 159-166. Link
  • Citterio, S., Prato, N., Fumagalli, P., Aina, R., Massa, N., Santagostino, A., Sgorbati, S. and Berta, G. (2005) 'The arbuscular mycorrhizal fungus Glomus mosseae induces growth and metal accumulation changes in Cannabis sativa L.', Chemosphere, 59(1), pp. 21-29. Link
  • Clark, A. (ed.) (2007) Managing Cover Crops Profitably, 3rd edn. Sustainable Agriculture Research and Education (SARE) Handbook Series 9. College Park, MD: SARE. Link
  • Clark, K. and Beegle, D. (2025) Nutrient Management to Improve Nitrogen Efficiency and Reduce Environmental Loss. University Park, PA: Penn State Extension. Link
  • Cockson, P., Landis, H., Smith, T., Hicks, K. and Whipker, B.E. (2019) 'Characterization of Nutrient Disorders of Cannabis sativa', Applied Sciences, 9(20), 4432. Link
  • Colorado State University Extension (no date) PlantTalk Colorado 1548: Impact of Watering Lawns and Gardens with Chlorinated Water. Fort Collins: Colorado State University. Link
  • Cox, D. (1995) Water Quality: pH and Alkalinity. Amherst, MA: UMass Extension Greenhouse Crops and Floriculture Program, University of Massachusetts Amherst. Prepared August 1995; page last updated 16 June 2026. Link
  • Criscione, K.S. (2025) Lime Calibration for Soilless Media: A Tool for Greenhouse and Nursery Producers. Virginia Cooperative Extension publication SPES-718NP. Blacksburg: Virginia Tech. Link
  • Danziger, N. and Bernstein, N. (2021) 'Plant architecture manipulation increases cannabinoid standardization in "drug-type" medical cannabis', Industrial Crops and Products, 167, 113528. Link
  • Danziger, N. and Bernstein, N. (2021) 'Shape matters: plant architecture affects chemical uniformity in large-size medical cannabis plants', Plants, 10(9), 1834. Link
  • Das, P.C., Vista, A.R., Tabil, L.G. and Baik, O.-D. (2022) 'Postharvest operations of cannabis and their effect on cannabinoid content: a review', Bioengineering, 9(8), 364. Link
  • Deng, Y., Chen, K., Teng, W., Zhan, A., Tong, Y., Feng, G., Cui, Z., Zhang, F. and Chen, X. (2014) 'Is the inherent potential of maize roots efficient for soil phosphorus acquisition?', PLoS ONE, 9(3), e90287. Link
  • Di, H.J. and Cameron, K.C. (2002) 'Nitrate leaching in temperate agroecosystems: sources, factors and mitigating strategies', Nutrient Cycling in Agroecosystems, 64(3), pp. 237-256. Link
  • Dontsova, K.M. and Norton, L.D. (2002) 'Clay dispersion, infiltration, and erosion as influenced by exchangeable Ca and Mg', Soil Science, 167(3), pp. 184-193. Link
  • Dupont, K., van den Berg, T.E., Zhang, J., Moene, A.F. and Vialet-Chabrand, S.R.M. (2025) 'Beyond the boundary: a new road to improve photosynthesis via wind', Journal of Experimental Botany, 76(20), pp. 5791-5813. Link
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  • English, J.T., Thomas, C.S., Marois, J.J. and Gubler, W.D. (1989) 'Microclimates of grapevine canopies associated with leaf removal and control of Botrytis bunch rot', Phytopathology, 79(4), pp. 395-401. Link
  • Environment Canterbury (no date) Rural waste prevention and management. Christchurch: Environment Canterbury Regional Council. Link
  • Environmental Protection Authority (2023) EPA advisory about clopyralid: follow the rules for clopyralid weedkiller to avoid contaminating compost. Advisory notice, November 2023. Wellington: EPA. (Copy hosted by the Bioenergy Association of New Zealand.) Link
  • Epstein, E. (1999) 'Silicon', Annual Review of Plant Physiology and Plant Molecular Biology, 50, pp. 641-664. Link
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  • Ferretti, D.F. (2023) A practical guide for using green crops in New Zealand, 1st edn (draft). Our Land and Water National Science Challenge. (A practice guide, not primary research.) Link
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  • Gale, E.S., Sullivan, D.M., Cogger, C.G., Bary, A.I., Hemphill, D.D. and Myhre, E.A. (2006) 'Estimating plant-available nitrogen release from manures, composts, and specialty products', Journal of Environmental Quality, 35(6), pp. 2321-2332. Link
  • Güçlü-Üstündağ, Ö. and Mazza, G. (2007) 'Saponins: properties, applications and processing', Critical Reviews in Food Science and Nutrition, 47(3), pp. 231-258. Link
  • Gomes, E.N., Vieira, L.M., Tomasi, J.C., Tomazzoli, M.M., Grunennvaldt, R.L., Fagundes, C.M. and Machado, R.C.B. (2018) 'Brown seaweed extract enhances rooting and roots growth on Passiflora actinia Hook stem cuttings', Ornamental Horticulture, 24(3), pp. 269-276. Link
  • Gomez-Roldan, V., Fermas, S., Brewer, P.B., Puech-Pagès, V., Dun, E.A., Pillot, J.-P., Letisse, F., Matusova, R., Danoun, S., Portais, J.-C., Bouwmeester, H., Bécard, G., Beveridge, C.A., Rameau, C. and Rochange, S.F. (2008) 'Strigolactone inhibition of shoot branching', Nature, 455, pp. 189-194. Link
  • Gosling, P., Mead, A., Proctor, M., Hammond, J.P. and Bending, G.D. (2013) 'Contrasting arbuscular mycorrhizal communities colonizing different host plants show a similar response to a soil phosphorus concentration gradient', New Phytologist, 198(2), pp. 546-556. Link
  • Grant, C.A. and Flaten, D.N. (2019) '3.0 Phosphorus behaviour in the soil', in 4R Management of Phosphorus Fertilizer in the Northern Great Plains: A Review of the Scientific Literature. Winnipeg: University of Manitoba, for Fertilizer Canada. Link
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  • Griffin, T.S. (2004 reprint) Using Wood Ash on Your Farm. Bulletin #2279. Orono, ME: University of Maine Cooperative Extension. Link
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  • Hill Laboratories (no date) Analysis Request [soil and plant analysis request form, with sampling instructions]. Hamilton: R J Hill Laboratories Limited. Link
  • Hill Laboratories (no date) Cation Exchange Capacity and Base Saturation. Technical Note, KB Item 3188, Version 7. Hamilton: Hill Laboratories. Link
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