- How to tertilize apple trees – tips on apple tree feeding//https://www.gardening knowhow.com/edible/fruits/apples/apple-tree-feeding.htm
- Irrigation - Apple and Pear Australia Limited (APAL)//http://apal.org.au/industry-info/intensive-pear-production/irrigation/
- Irrigation Of Apples - Nelson Irrigation//http://www.nelsonirrigation.com/media/ accessories/Apple_PP_508.pdf
- Pear tree care: Growing and planting pears in the home garden//https://www.gardening knowhow.com/edible/fruits/pear/growing-pear-trees.htm
- Pear tree climate conditions//https://wikifarmer.com/pear-tree-climate-conditions/