高品質蘋果的均衡營養管理方法SQM2019
SEASONALITY OF NUTRIENTS IN LEAVES AND FRUITS OF APPLE TREES
The effect of zeolite, organic and inorganic fertilizers on soil chemical properties, growth and biomass yield of apple trees
COMPOSITION OF FOODS食物養分組成(下載后查看更清晰一些)
Effect of different calcium compounds on postharvest quality of apples
apple-maturity-chart
The commercial apple industry worldwide is in the midst of a major change in fruit production management systems. With size-controlling rootstocks tree size has been reduced and the number of trees per acre, referred to as tree density, has increased significantly. Some orchards in Europe have exceeded 5,000 trees per acre.
Jim Kamas, Monte Nesbitt& Larry Stein Extension Fruit Specialists, Texas AgriLife Extension
HARVEST DATES FOR APPLES IN CENTRAL WASHINGTON
The use of dwarfing rootstocks is the primary means utilized to affect tree size. Apples are the fruit crop that most commonly utilizes dwarfing rootstock. Size range from the very dwarfing rootstocks such as M.27 and P.16 to nearly standard size rootstocks such as MM.111 and MM.106. In pears there is not nearly the range in size controlling rootstocks the majority of which are only +/- 20% the size of seedling.