手法を比較

	施肥灌溉	作物負荷管理
分野	園芸学	園芸学
系統	Process / pipeline	Process / pipeline
提唱年	1980	1960
提唱者	Irrigation engineering and crop nutrition integration	Pomology research tradition
種類	irrigation-nutrition scheduling pipeline	management optimization pipeline
原典	Hochmuth, G. J. (1994). Efficiency of nutrient uptake—A review. HortTechnology, 4(1), 14–23.	Ackley, W. B., & Wattendorf, R. J. (1962). The relationship of crop load to yield, fruit quality, and return bloom in apples. Proceedings of the American Society for Horticultural Science, 80, 73–83.
別名	fertigation management, nutrient timing optimization, drip fertilization	fruit thinning, load balancing, fruit density regulation
関連	4	4
概要	Fertigation scheduling integrates irrigation and nutrient delivery to optimize plant nutrition while minimizing waste and environmental impact. By applying fertilizers through drip or sprinkler systems at precise times and rates matched to plant development stage and soil water availability, growers can improve nutrient use efficiency, reduce leaching, and boost yields. This method is now standard in commercial vegetable, orchard, and nursery production worldwide.	Crop load management uses quantitative assessment of fruit number and tree vigor to optimize yields and fruit quality through selective thinning and load balancing. This method combines visual assessment of fruitlet density, calculation of target fruit number based on tree age and vigor, physical or chemical thinning, and yield monitoring to achieve the optimal balance between productivity and fruit size and flavor.