6. Biblography

Cregg, B. 2003. Soil moisture measurements in nurseries and landscapes. Crop Advisory Team Alert, Vol. 18, No. 12. Michigan State University Extension, East Lansing, MI.
Evans, R., D. Cassel, R. Sneed. 1996. Measuring soil water for irrigation scheduling: monitoring methods and devices. Publication Number: AG 452­2. North Carolina Cooperative Extension Service. Raleigh, NC.
Ling, P. 2005. A review of soil moisture sensors. Vol. 12, Issue 3. Ohio Floriculture Online. The Ohio State University Extension. Columbus, OH.
Scherer, T., B. Seelig, D. Franzen. 1996. Soil, water and plant characteristics important to irrigation. EB­66. North Dakota State University Extension Service. Fargo, ND.
Werner, H. 2002. Measuring soil moisture for irrigation water management. FS876. South Dakota State University Cooperative Extension Service. Brookings, SD.
Brian Clark, H. (2013.).
Water plants in the morning. Retrieved from http://www.thedailygreen.com/going­green/tips/water­plants­morning
Clemson , U. (2013.). Why plants need water. Retrieved from http://www.clemson.edu/extension/horticulture/nursery/irrigation/why_plants_need_water. html
COLSTON, B. (2013). Watering plants. Retrieved from http://tlc.howstuffworks.com/home/how­to­water­plants.htm
Jim , L. (2011, July 29). Water regularly to keep your plants alive. Retrieved from http://ozarksgardening.blogspot.sg/2011/07/water­regularly­to­keep­your­plants.html Mairi, B. ( 2012, June 12). 8 best indoor self­watering planters for the (black­thumbed) design lover. Retrieved from http://www.treehugger.com/lawn­garden/8­best­indoor­self­watering­planters­design­love r.html 

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