Daniel Willits Niedziela, C. E., Jr., Depa, M. A., Nelson, P. V., Willits, D. H., Peet, M. M., Dickey, D. A., & Mingis, N. C. (2018). Effects of Carbon Dioxide and Photosynthetic Photon Flux on Mineral Content in Chrysanthemum Allowing for Growth as a Covariate. HORTSCIENCE, 53(1), 73–77. https://doi.org/10.21273/hortsci12425-17 Love, C. D., Shah, S. B., Grimes, J. L., & Willits, D. W. (2014). Transpired solar collector duct for tempering air in North Carolina turkey brooder barn and swine nursery. Solar Energy, 102, 308–317. https://doi.org/10.1016/j.solener.2013.11.028 Yao, H., Shah, S., Willits, D. H., Westerman, P. W., Li, L. W., & Marshall, T. K. (2011). Ammonia emissions from broiler cake stockpiled in a naturally ventilated shed. Transactions of the ASABE, 54(5), 1893–1904. https://doi.org/10.13031/2013.39830 Li, S., Willits, D. H., Browdy, C. L., Timmons, M. B., & Losordo, T. M. (2009). Thermal modeling of greenhouse aquaculture raceway systems. AQUACULTURAL ENGINEERING, 41(1), 1–13. https://doi.org/10.1016/j.aquaeng.2009.04.002 Li, S., & Willits, D. H. (2008). An experimental evaluation of thermal stratification in a fan-ventilated greenhouse. Transactions of the ASABE, 51(4), 1443–1448. https://doi.org/10.13031/2013.25237 Li, S., & Willits, D. H. (2008). Comparing low-pressure and high-pressure fogging systems in naturally ventilated greenhouses. BIOSYSTEMS ENGINEERING, 101(1), 69–77. https://doi.org/10.1016/j.biosystemseng.2008.06.004 Li, S., & Willits, D. H. (2008). Modeling thermal stratification in fan-ventilated greenhouses. Transactions of the ASABE, 51(5), 1735–1746. https://doi.org/10.13031/2013.25307 Ponce, K. H., Peet, M. M., Harlow, C. D., Cheng, J., & Willits, D. H. (2004). Assessment of swine waste bioremediation using greenhouse tomatoes. PROTECTED CULTIVATION 2002: IN SEARCH OF STRUCTURES, SYSTEMS AND PLANT MATERIALS FOR SUSTAINABLE GREENHOUSE PRODUCTION, pp. 415–423. https://doi.org/10.17660/actahortic.2004.633.51 Willits, D. H., & Gurjer, Y. R. (2004). Heat pumps for the heating and night-cooling of greenhouse crops: A simulation study. Transactions of the ASAE, 47(2), 575–584. https://doi.org/10.13031/2013.16038 Cheng, J. J., Peet, M. M., & Willits, D. H. (2004). Swine wastewater treatment and reclamation. Progress on bioproducts processing and food safety, selected papers from the 1st International Conference of CIGR section VI on bioproducts processing and food safety, Beijing, China, 11-14 October 2004, 1. Cheng, J., Shearin, T. E., Peet, M. M., & Willits, D. H. (2004). [Review of Utilization of treated swine wastewater for greenhouse tomato production]. WATER SCIENCE AND TECHNOLOGY, 50(2), 77–82. https://doi.org/10.2166/wst.2004.0093 Cheng, J., Peet, M. M., & Willits, D. H. (2003). Ambient temperature anaerobic digester and greenhouse for swine waste treatment and bioresource recovery at Barham farm. Proceedings : North Carolina Animal Waste Management Workshop : Oct. 16-17, 2003, Sheraton Imperial Hotel, Research Triangle Park, North Carolina. Willits, D. H. (2003). Cooling fan-ventilated greenhouses: A modelling study. BIOSYSTEMS ENGINEERING, 84(3), 315–329. https://doi.org/10.1016/S1537-5110(02)00270-2 Willits, D. H. (2003). The effect of cloth temperature on the cooling efficiency of shade cloths in greenhouses. Transactions of the ASAE, 46(4), 1215–1221. https://doi.org/10.13031/2013.13959 Shearin, T. E., Cheng, J., Peet, M. M., & Willits, D. H. (2003). Utilization of nutrients in anaerobically-pretreated swine wastewater for greenhouse tomato production. Animal, Agricultural and Food Processing Wastes IX : proceedings of the Ninth International Symposium, 12-15 October, 2003, Raleigh, North Carolina. https://doi.org/10.13031/2013.15240 Cheng, J., Shearin, T. E., Peet, M. M., & Willits, D. H. (2003). Utilization of treated swine wastewater for greenhouse tomato production. Wastewater reclamation and reuse IV : selected proceedings of the 4th International Symposium on Wastewater Reclamation and Reuse, held at Mexico City, 12-14 November 2003, 4. Harlow, C., Peet, M. M., Ponce, A. K., Cheng, J., Willits, D. H., & Casteel, M. (2003). Utilizing a greenhouse tomato crop to recover bio-resources from swine waste. Proceedings of the ASHS centennial conference (Providence, Rhode Island). Willits, D. H., Marbis, J. M., Cheng, J., Peet, M. M., & Shearin, T. (2003). Waste heat utilization in a greenhouse used for the removal of nutrients from a swine waste stream. ASAE annual International Meeting 2003, Las Vegas : The Riviera Hotel, July 27-30, 2003, 034043. Ponce, K. H., Peet, M. M., Cheng, J., Harlow, C., & Willits, D. H. (2002). Preliminary assessment of swine waste bioremediation using greenhouse tomatoes. XXVIth International Horticultural Congress & Exhibition (IHC 2002) : horticulture : art & science for life : Metro Toronto Convention Centre, August 11-17, 2002. Peet, M. M., Ponce, K., Willits, D. H., & Cheng, J. (2001). Bioremediation of swine waste using greenhouse tomatoes: a systems approach. 98th Conference of the American Society for Horticultural Science. Cheng, J., Peet, M. M., Willits, D. H., & Pace, J. (2001). Integrated farming for sustainable agriculture. Proceedings of the International Conference for Agricultural Science and Technology (Beijing, China). Willits, D. H., & Peet, M. M. (2001). Measurement of chlorophyll fluorescence as a heat stress indicator in tomato: Laboratory and greenhouse comparisons. JOURNAL OF THE AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE, 126(2), 188–194. https://doi.org/10.21273/jashs.126.2.188 Willits, D. H. (2001). The effect of cloth characteristics on the cooling performance of external shade cloths for greenhouses. JOURNAL OF AGRICULTURAL ENGINEERING RESEARCH, 79(3), 331–340. https://doi.org/10.1006/jaer.2001.0702 Cheng, J., Pace, J., Peet, M. M., Willits, D. H., & Shearin, T. (2001). Using a greenhouse tomato crop to recover the nutrients from swine wastewater. Proceedings of the International Symposium Addressing Animal Production and Environmental Issues. Willits, D. H. (2000). Constraints and limitations in greenhouse cooling: Challenges for the next decade. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE AND BRITISH-ISRAELI WORKSHOP ON GREENHOUSE TECHNIQUES TOWARDS THE 3RD MILLENNIUM, pp. 57–66. https://doi.org/10.17660/actahortic.2000.534.5 Willits, D. H., & Peet, M. (2000). Intermittent application of water to an externally mounted, greenhouse shade cloth to modify cooling performance. Transactions of the ASAE, 43(5), 1247–1252. https://doi.org/10.13031/2013.3018 Willits, D. H., & Bailey, D. A. (2000). The effect of night temperature on chrysanthemum flowering: heat-tolerant versus heat-sensitive cultivars. SCIENTIA HORTICULTURAE, 83(3-4), 325–330. https://doi.org/10.1016/s0304-4238(99)00091-6 Willits, D. H., & Peet, M. M. (1999). USING CHLOROPHYLL FLUORESCENCE TO MODEL LEAF PHOTOSYNTHESIS IN GREENHOUSE PEPPER AND TOMATO. Acta Horticulturae, 12(507), 311–317. https://doi.org/10.17660/actahortic.1999.507.36 Jacobson, B. M., & Willits, D. H. (1998). Developing relationships between environmental variables and stem elongation in chrysanthemum. Transactions of the ASAE, 41(3), 825–832. https://doi.org/10.13031/2013.17221 Strojny, Z., Nelson, P. V., & Willits, D. H. (1998). Pot soil air composition in conditions of high soil moisture and its influence on chrysanthemum growth. SCIENTIA HORTICULTURAE, 73(2-3), 125–136. https://doi.org/10.1016/S0304-4238(97)00156-8 Willits, D. H., & Peet, M. M. (1998). The effect of night temperature on greenhouse grown tomato yields in warm climates. AGRICULTURAL AND FOREST METEOROLOGY, 92(3), 191–202. https://doi.org/10.1016/S0168-1923(98)00089-6 Peet, M. M., Willits, D. H., & Gardner, R. (1997). Response of ovule development and post-pollen production processes in male-sterile tomatoes to chronic, sub-acute high temperature stress. JOURNAL OF EXPERIMENTAL BOTANY, 48(306), 101–111. https://doi.org/10.1093/jxb/48.1.101 Willits, D. H., & Peet, M. M. (1994). Misting external shade cloths. Part I: Relief from the heat? North Carolina Flower Growers' Bulletin, 39(2), 1. Willits, D. H. (1994). Misting external shade cloths. Part II: Does it matter what kind of cloth? North Carolina Flower Growers' Bulletin, 39(6), 1. Willits, D. H., & Bailey, D. A. (1994). Night cooling as a means of improving warm weather chrysanthemum production: The effect of night temperature on growth and flower development in mums. Paper (American Society of Agricultural Engineers), (944072), 12. Willits, D. H. (1993). Greenhouse cooling. North Carolina Flower Growers' Bulletin, 38(2), 15. Willits, D. H., & Peet, M. M. (1993). The effect of evaporative cooling on the efficiency of external greenhouse shade cloths. Paper (American Society of Agricultural Engineers), (93-4042), 13. Willits, D. H., Nelson, P. V., Peet, M. M., Depa, M. A., & Kuehny, J. S. (1992). Modeling Nutrient Uptake in Chrysanthemum as a Function of Growth Rate. Journal of the American Society for Horticultural Science, 117(5), 769–774. https://doi.org/10.21273/jashs.117.5.769 Willits, D. H., & Peet, M. M. (1992). Nighttime cooling using heat pumps in warm-weather greenhouse tomato production. Paper (American Society of Agricultural Engineers), (92-4005), 11. Willits, D. H., Ahmad, I., & Peet, M. M. (1991). A model for greenhouse cooling. Paper (American Society of Agricultural Engineers), (91-4041), 24. Willits, D. H. (1991). Greenhouse engineering research at NCSU. North Carolina Flower Growers' Bulletin, 36(4). Willits, D. H. (1991). Greenhouse shading. North Carolina Flower Growers' Bulletin, 36(6), 8. Willits, D., Peet, M., Depa, M., Kuehny, J., & Nelson, P. (1990). Modulation of nutrient uptake in chrysanthemum by irradiance, CO2, season and developmental stage. Monograph (British Society for Plant Growth Regulation), (20), 59. Willits, D. H., & Peet, M. M. (1989). Predicting yield responses to different greenhouse CO2 enrichment schemes: cucumbers and tomatoes. Agricultural and Forest Meteorology, 44(3-4), 275–293. https://doi.org/10.1016/0168-1923(89)90022-1 Willits, D. H., Karnoski, T. K., & McClure, W. F. (1980). A microprocessor-based control system for greenhouse research: Part I. Hardware. Transactions of the ASAE, 23(3), 688. https://doi.org/10.13031/2013.34648 Willits, D. H. (1975). Heating greenhouses with solar energy. North Carolina Flower Growers' Bulletin, 19(5), 1.