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183. Newman, Julie P. (Ed.). 2014. Container Nursery Production and Business Manual. University of California, Division of Agricultural and natural Resources: Davis, California. Publication 3540.
184. Nordstedt, Nathan and Michelle Jones. 2020. Prime Your Plants for Success with Biostimulants. Greenhouse Grower, August.
185. Oldham, Larry. 2014. Inorganic Fertilizers for Crop Production. Mississippi State University, Mississippi State University Extension Service. Publication POD-09-14.
186. Owen, W. Garrett and Roberto G. Lopez. 2015. Evaluating Container Substrates and Their Components. Purdue University, Purdue University Extension: West Lafayette, Indiana. Publication HO-255-W.
187. Paparozzi, Ellent, and George E. Myer. 2012. The Return of Capillary Mats. Greenhouse Grower, August.
188. Parbst, Kurt. 2008. Measuring for Curtains. Greenhouse Management, January.
189. Parbst, Kurt. 2010. Using Shading for Greenhouse Temperature Control. Greenhouse Management, April.
190. Pennisi, Bodie V. and Paul A. Thomas. 2015. Essential pH Management in Greenhouse Crops. The University of Georgia, The University of Georgia Cooperative Extension: Atlanta, Georgia. Bulletin 1256.
191. Pickens, Jeremy M., Jason Danaher, and Daniel Wells. 2016. Greenhouse Crops and Cropping Systems for Commercial Aquaponics. Southern Regional Aquaculture Center: Stoneville, Mississippi. Publication No. 5009.
192. Porter, Mike. 2002. Transplanting Efficiency. Greenhouse Product News, March.
193. Poudel, Megha and Bruce Dunn. 2023. Greenhouse Carbon Dioxide Supplementation. Oklahoma State University, Oklahoma Cooperative Extension Service: Stillwater, Oklahoma. Publication HLA-6723.
194. Prenger, Jessica J. 2011. Greenhouse Condensation Control: Understanding and Using Vapor Pressure Deficit (VPD). Ohio State University, Ohio State University Extension: Columbus, Ohio. Publication AEX–804.
195. Pringnitz, Brent A. 2001. Selecting the Correct Nozzle to Reduce Spray Drift. Iowa State University, Iowa State University Extension: Ames, Iowa. Publication IPM 68.
196. Quinn, James, David Trinklein, and Raymond A. Cloyd. 2009. Integrated Pest Management in Greenhouses and Herbaceous Nurseries. University of Missouri, University of Missouri Extension: Columbia, Missouri. Publication IPM1026.
197. Rader, Heidi. 2016. Greenhouses for Home Gardeners in Alaska. University of Alaska, University of Alaska Cooperative Extension Service: Fairbanks, Alaska. Publication HGA-00337.
198. Radjevic, Jasmina. 2007. What’s Happening with Structures? Greenhouse Product News, April.
199. Rechcigl, Nancy. 2014-15. Protecting Your Crops with Sound Disease Management. In: GrowerTalks- Insecticide & Fungicide Guide. Chris Beytes, (Ed.). West Chicago, Illinois: Ball Publishing.
200. Relf, Diane and Elizabeth Ball. 2009. Propagation by Cuttings, Layering and Division. Virginia Polytechnic Institute and State University, Virginia Cooperative Extension: Blacksburg, Virginia. Publication 426-002.
201. Resh, Howard M. 2013. Hydroponic Food Production, 7th Edition. Boca Raton, Florida: CRC Press.
202. Robbins, James A. and Michael R. Evans. 2011. Growing Media for Container Production in a Greenhouse or Nursery. Part I – Components and Mixes. University of Arkansas, University of Arkansas Cooperative Extension Service: Fayetteville, Arkansas. Publication FSA6097.
203. Robbins, James A. and Michael R. Evans. 2011. Growing Media for Container Production in a Greenhouse or Nursery. Part II – Physical and Chemical Properties. University of Arkansas, University of Arkansas Cooperative Extension Service: Fayetteville, Arkansas. Publication FSA6098.
204. Robbins, James A. 2012. Irrigation Water for Greenhouses and Nurseries. University of Arkansas, University of Arkansas Cooperative Extension Service: Little Rock, Arkansas. Publication FSA6061.
205. Roll, Diana. 2004. Greenhouse Pest Control: Study Guide for Commercial Applicators. Ohio Department of Agriculture: Reynoldsburg, Ohio.
206. Roper, Teryl R. 2005. Plant Growth Regulator Use in Apples. University of Wisconsin, University of Wisconsin-Extension, Cooperative Extension: Madison Wisconsin. Publication A3524.
207. Runkle, Erik S. 2006. Know Your Application Techniques. Greenhouse Product News, August.
208. Runkle, Erik S. 2007. PGR Drench Guidelines. Greenhouse Product News, April.
209. Runkle, Erik S. 2007. Light Quality Defined. Greenhouse Product News, June.
210. Runkle, Erik S. 2008. The ABCs of PGRs. Greenhouse Product News, November.
211. Runkle, Erik S. 2008. Calculating ADT. Greenhouse Product News, December.
212. Runkle, Erik S. 2008. Do You Know What Your DLI Is? Greenhouse Product News, December.
213. Runkle, Erik S. 2009. Brushing Plants for Height Control. Greenhouse Product News, February.
214. Runkle, Erik S. 2010. Height Control for Vegetable Transplants. Greenhouse Product News, February.
215. Runkle, Erik S. 2010. Maximizing PGR Spray Applications. Greenhouse Product News, April.
216. Runkle, Erik S. 2010. Spray…Versus Sprench…Versus Drench. Greenhouse Product News, July.
217. Runkle, Erik S. 2011. Implications of Base Temperature. Greenhouse Product News, January.
218. Runkle, Erik S. 2011. Grower 101: Measuring Greenhouse Temperature. Greenhouse Product News, March.
219. Runkle, Erik S. 2012. Which Light Sensor Should I Use?. Greenhouse Product News, September.
220. Runkle, Erik S. 2013. Plug/Liner Dip Guidelines. Greenhouse Product News, February.
221. Runkle, Erik S. 2013. PGR Application Considerations. Greenhouse Product News, May.
222. Runkle, Erik S. 2013. Turning On/Off Supplemental Lighting. Greenhouse Product News, October.
223. Runkle, Erik S. 2014. Effective Use of PGRs. Greenhouse Product News, July.
224. Runkle, Erik S. 2014. Non-Chemical Height Control Techniques. Greenhouse Product News, August.
225. Runkle, Erik S. 2014. Managing Temperature During Propagation. Greenhouse Product News, December.
226. Runkle, Erik S. 2015. Light Wavebands & Their Effects on Plants. Greenhouse Product News, March.
227. Runkle, Erik S. 2015. Trending: PGR Sprenches. Greenhouse Product News, April.
228. Runkle, Erik S and Paul Karlovich. 2015. Keys to Successful Seedling Production. Greenhouse Product News, November.
229. Runkle, Erik S. 2015. Photoperiodic vs. Photosynthetic Lighting. Greenhouse Product News, November.
230. Runkle, Erik S. 2015. Environment and PGR Interactions. Greenhouse Product News, December.
231. Runkle, Erik S. 2016. A Closer Look at Far-Red Radiation. Greenhouse Product News, May.
232. Runkle, Erik S. and Matthew Blanchard. 2018. Temperature Integration. Greenhouse Product News, February.
233. Runkle, Erik S. 2020. Early Scaling-Up Challenges with LED Lighting. Greenhouse Product News, December.
234. Runkle, Erik S. 2021. “Hidden” Benefits of Supplemental Lighting. Greenhouse Product News, April.
235. Runkle, Erik S. 2021. LEDs: More than µmol×J–1. Greenhouse Product News, July.
236. Runkle, Erik S. 2021. Increasing the Daily Light Integral. Greenhouse Product News, August.
237. Runkle, Erik S. 2021. Light Spectrum for Different Applications. Greenhouse Product News, September.
238. Runkle, Erik S. 2021. Water Vapor-Pressure Deficit. Greenhouse Product News, December.
239. Runkle, Erik S. 2022. A Closer Look at LED Efficacy. Greenhouse Product News, January.
240. Runkle, Erik S. 2022. Blue Light as a PGR. Greenhouse Product News, February.
241. Runkle, Erik S. 2022. The Shade-Avoidance Response. Greenhouse Product News, May.
242. Runkle, Erik S. 2022. Air, Leaf and Root-Zone Temperature. Greenhouse Product News, July.
243. Runkle, Erik S. 2022. Pros and Cons of Cool Nights. Greenhouse Product News, September.
244. Runkle, Erik S. 2022. Far-red Light in Greenhouse and Indoor Farming. Greenhouse Product News, October.
245. Runkle, Erik S. 2022. Getting Started With Supplemental Greenhouse LED Lighting. Greenhouse Product News, November/December.
246. Runkle, Erik S. 2023. Several Consequences of Growing Too Cool. Greenhouse Product News, January.
247. Runkle, Erik S. 2023. Advancements in Horticultural Lighting. Greenhouse Product News, March.
248. Runkle, Erik S. 2023. Lighting Plants Indoors, Without Sunlight. Greenhouse Product News, May.
249. Runkle, Erik S. 2023. Problems with Foot-candles, Lux and Lumens. Greenhouse Product News, September.
250. Runkle, Erik S. 2024. LED Lighting: A 2024 Update. Greenhouse Product News, February.
251. Sanford, Scott. 2011. Reducing Greenhouse Energy Consumption—An Overview. University of Wisconsin, University of Wisconsin Cooperative Extension: Madison, Wisconsin. Publication A3907-01.
252. Sanford, Scott. 2011. Greenhouse Unit Heaters: Types, Placement, and Efficiency. University of Wisconsin, University of Wisconsin Cooperative Extension: Madison, Wisconsin. Publication A3907-02.
253. Sanford, Scott. 2011. Using Curtains to Reduce Greenhouse Heating and Cooling Costs. University of Wisconsin, University of Wisconsin Cooperative Extension: Madison, Wisconsin. Publication A3907-03.
254. Sanford, Scott. 2011. Reducing Greenhouse Energy Consumption — An Overview. University of Wisconsin, University of Wisconsin Cooperative Extension: Madison, Wisconsin. Publication A3907-01.
255. Sargent, S.A. and S.C. Stapleton. 2008. Harvest and Handling Considerations – Florida Greenhouse Vegetable Production Handbook, Volume 1. University of Florida, Florida Cooperative Extension Service: Gainesville, Florida. Publication HS771.
256. Schimelpfenig, Gretchen. 2022. The Story Behind Greenhouse Curtains. Greenhouse Grower, June.
257. Schnelle, Michael A. and John M. Dole. 2010. Greenhouse Structures and Coverings. Oklahoma State University, Oklahoma Cooperative Extension: Stillwater, Oklahoma. Publication HLA-6700.
258. Schnelle, Michael A. and John M. Dole. 2010. Locating the Greenhouse. Oklahoma State University, Oklahoma Cooperative Extension: Stillwater, Oklahoma. Publication HLA-6701.
259. Schnelle, Michael A. and John M. Dole. 2010. Greenhouse Floors and Benches. Oklahoma State University, Oklahoma Cooperative Extension: Stillwater, Oklahoma. Publication HLA-6703.
260. Schnelle, Michael A., Janet C. Cole, and John M. Dole. 2012. Mist Propagation Systems and Humidity Chambers for the Nursery and Greenhouse. Oklahoma State University, Oklahoma State University Cooperative Extension: Stillwater, Oklahoma. Publication HLA-6708.
261. Schnelle, Michael A. (Ed.). 2013. Water Quality Handbook for Nurseries. Oklahoma State University, Oklahoma Cooperative Extension Service: Stillwater, Oklahoma. Circular E-951.
262. Schnelle, Michael A and Eric Rebek. 2013. IPM–Scouting and Monitoring for Pests in Commercial Greenhouses. Oklahoma State University, Oklahoma Cooperative Extension Service: Stillwater, Oklahoma. Publication HLA-6711.
263. Schnelle, Rebecca, Christopher Cerveny, and Jim Barrett. 2005. Factors Affecting PGR Liner Dips. Greenhouse Product News, July.
264. Schuch, Ursula K. and Jack J. Kelly. 2006. Capillary Mats for Irrigating Plants in the Retail Nursery and Saving Water. Southwest Horticulture, 23(5).
265. Schuch, Ursula K., Jack J. Kelly, and Trent Teegerstrom. 2008. Capillary Mats for Maintenance of Plants in the Retail Nursery. HortTechnology, 18.
266. Schulz, Martin. 2008. Boom Systems: A Solution for Efficient Irrigation. Greenhouse Product News, March.
267. Schwankl, Larry, Blaine Hanson, and Terry Prichard. 2008. Maintaining Microirrigation Systems. University of California, Agriculture and Natural Resources: Oakland, California. Publication 21637.
268. Schwartz, Howard F. 2000. Sclerotinia Disease, White Mold, or Watery Soft Rot. University of Illinois, University of Illinois Extension: Urbana, Illinois. RPD No. 1008.
269. Sheffield, Ron E., Christopher G. Henry, David Bankston, and William A. Hadden. 2013. Measuring Irrigation Flow. Louisiana State University, Louisiana Cooperative Extension Service: Baton Rouge, Louisiana. Publication 3241-L.
270. Shock, C. 2006. Drip Irrigation: An Introduction. Oregon State University, Extension Service. EM 8782-E.
271. Shrestha, Arjina and Bruce Dunn. 2016. Hydroponics. Oklahoma State University, Oklahoma State Cooperative Extension Service: Stillwater, Oklahoma. Publication HLA-6442.
272. Shuai, Xiufu and Gladis Zinati. 2005. Management of Iron in Irrigation Water. Rutgers University, New Jersey Agricultural Experiment Station: New Brunswick, New Jersey. Fact Sheet FS516.
273. Simonne, Eric, Robert Hochmuth, Jacque Breman, William Lamont, Danielle Treadwell, and Aparna Gazula. 2008. Drip-irrigation Systems for Small Conventional Vegetable Farms and Organic Vegetable Farms. University of Florida, The Institute of Food and Agricultural Sciences: Gainesville, Florida. Publication HS1144.
274. Smart, Victorian, Danielle Miska, and Katie Simpson-Johnson. 2021. Geothermal Greenhouses: Exploring the Potential. ATTRA Publication. National Center for Appropriate Technology, Butte, Montana. Publication IP617.
275. Smith, Tina. 2009. Managing Weeds in the Greenhouse. Greenhouse Management, December.
276. Smith, Tina and Paul Lopes. (Eds.). 2010. Massachusetts Greenhouse Industry Best Management Practices Guide. University of Massachusetts, University of Massachusetts Extension: Amherst, Massachusetts.
277. Sonneveld, Cees and Wim Voogt. 2009. Plant Nutrition of Greenhouse Crops. Bleiswijk, Netherlands: Springer.
278. Stack, Lois Berg, James Dill, Leanne Pundt, Rosa Raudales, Cheryl Smith, and Tina Smith. 2017. The New England Greenhouse Floriculture Guide: A Management Guide for Insects, Diseases, Weeds, and Growth Regulators. Burlington, Vermont: New England Floriculture, Inc.
279. Storlie, Craig A. 1997. Treating Drip Irrigation Systems with Chlorine. Rutgers, Rutgers Cooperative Research & Extension: New Brunswick, New Jersey. FS795.
280. Svenson, Sven E. 2002. Choosing an Open Roof Greenhouse. Greenhouse Product News, June.
281. Taghvaeian, Saleh. 2014. Drip Irrigation Systems. Oklahoma State University, Oklahoma Cooperative Extension Service: Stillwater, Oklahoma. Publication BAE-1511.
282. Tatum, David, Jimmy Bonner, and Mengmeng Gu. 2010. Energy Conservation for Greenhouse Growers. Mississippi State University, Mississippi State University Extension Service: Oktibbeha County, Mississippi. Publication POD 02-10.
283. Thomas, Cathy (Ed.). 2005. Greenhouse IPM with an Emphasis on Biocontrols. Penn State University, Pennsylvania Integrated Pest Management Program: University Park, Pennsylvania. Publication CAT AGRS-96.
284. Thomas, Paul A., Forrest E. Stegelin, Rose Mary Seymour, and Bodie V. Pennisi. 2005. Water Source Use and Expansion Assessment. The University of Georgia, The University of Georgia Cooperative Extension: Atlanta, Georgia. Bulletin 1274.
285. Thomas, Paul A., Forrest E. Stegelin, Rose Mary Seymour, and Bodie V. Pennisi. 2005. Water Quality Assessment. The University of Georgia, The University of Georgia Cooperative Extension: Atlanta, Georgia. Bulletin 1277.
286. Thomas, Paul A., Rose Mary Seymour, Forrest E. Stegelin, and Bodie V. Pennisi. 2012. Water Management Assessment. The University of Georgia, The University of Georgia Cooperative Extension: Atlanta, Georgia. Bulletin 1276.
287. Thomas, Paul A., Rose Mary Seymour, Forrest E. Stegelin, and Bodie V. Pennisi. 2012. Irrigation and Technology Assessment. The University of Georgia, The University of Georgia Cooperative Extension: Atlanta, Georgia. Bulletin 1275.
288. Thomas, Paul A., Rose Mary Seymour, Forrest E. Stegelin, and Bodie V. Pennisi. 2012. Water Recycling and Water Reuse Assessment. The University of Georgia, The University of Georgia Cooperative Extension: Atlanta, Georgia. Bulletin 1278.
289. Torres, Ariana P. and Roberto G. Lopez. 2010. Measuring Daily Light Integral in a Greenhouse. Purdue University, Department of Horticulture and Landscape Architecture: West Lafayette, Indiana. Publication HO-238-W.
290. Torres, Ariana P., Michael V. Mickelbart, and Roberto G. Lopez. 2010. Measuring pH and EC in Large Container Crops. Greenhouse Product News, July.
291. Trinklein, David. 2016. Plant Propagation. University of Missouri, University of Missouri Extension: Columbia, Missouri. Publication MG3.
292. Tyson, Richard, Robert Hochmuth, and Daniel J. Cantliffe. 2016. Hydroponic Vegetable Production in Florida. University of Florida, University of Florida/Institute of Food and Agricultural Sciences Extension Service: Gainesville, Florida. Publication HS405.
293. Uva, Wen-fei L. 2001. Comparing Investment and Return Risks for Subirrigation Systems. Greenhouse Product News, July.
294. Van Iersel, Marc W., Stephanie Burnett, and Jongyun Kim. 2010. How Much Water do Your Plants Really Need? Greenhouse Management, March.
295. Van Iersel, Marc W., Matthew Chappell, and John D. Lea-Cox. 2013. Sensors for Improved Efficiency of Irrigation in Greenhouse and Nursery Production. HortTechnology, 23.
296. Van Iersel, Marc W., Matthew Chappell, and John D. Lea-Cox. 2013. Sensors for Improved Efficiency of Irrigation in Greenhouse and Nursery Production. HortTechnology, 23(6).
297. Wainwright-Evans, Suzanne. 2014-15. Biological Control in Production. In: GrowerTalks- Insecticide & Fungicide Guide. Chris Beytes, (Ed.). West Chicago, Illinois: Ball Publishing.
298. Warnke, D.D. 2014. Test Procedures for Greenhouse Root Media. In: Soil Test Methods from the Southeastern United States. F.J. Sikora and K.P. Moore, (Eds.). Southern Cooperative Series Bulletin No. 419.
299. Watson, J.A., C. Gómez, D.E., Buffington, R.A. Bucklin, R.W. Henley, and D.B. McConnell. 2019. Greenhouse Ventilation. University of Florida, IFAS Extension: Gainesville, Florida. AE-10.
300. Wheeler, Eileen Fabian and A. J. Both. 2002. Evaluating Greenhouse Mechanical Ventilation System Performance—Part 3 of 3. Rutgers Cooperative Extension, New Jersey Agricultural Experiment Station Rutgers, The State University of Rutgers: New Brunswick, New Jersey. Publication E277.
301. White, Jean. 2013. Whiteflies in the Greenhouse. University of Kentucky, University of Kentucky Cooperative Extension Service: Lexington, Kentucky. Publication Entfact-456.
302. Wilkinson, Kim M., Thomas D. Landis, Diane L. Haase, Brian F. Daley, and R. Kasten Dumroese. (Eds.). 2014. Tropical Nursery Manual: A Guide to Starting and Operating a Nursery for Native and Traditional Plants. United States Department of Agriculture, Forest Service: Washington, D.C. Agriculture Handbook 732.
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304. Will, Elizabeth and James E. Faust. 2010. Growing Media for Greenhouse Production. The University of Tennessee, The University of Tennessee Agricultural Extension Service: Knoxville, Tennessee. Publication PB1618.
305. Wolf, Robert E. and Scott Bretthauer. 2009. Droplet Size Calibration: A New Approach to Effective Spraying. Kansas State University, Kansas State University Agricultural Experiment Station and Cooperative Extension Service: Manhattan, Kansas. Publication MF2869.
306. Worley, John. 2014. Greenhouses: Heating, Cooling and Ventilation. University of Georgia, University of Georgia Extension Services: Athens, Georgia. Bulletin 972.
307. Yates, Rick. 2016. Fungus Gnats: More Than a Nuisance. Greenhouse Produce News, April.
308. Yildiz, Ilhami. 2021. Greenhouse Engineering Integrated Energy Management. Boca Raton, Florida: CRC Press.
309. Zazueta, Fedro S., Allan G. Smajstria, and Gary A. Clark. 2008. Irrigation System Controllers. University of Florida, Florida Cooperative Extension Service: Gainesville, Florida. Circular SSAGE22.
310. Zinati, Gladis. 2005. Management of Iron in Irrigation Water. Rutgers, Rutgers Cooperative Research & Extension: New Brunswick, New Jersey. FS516.
