Improving vineyard water use efficiency and yield with variable rate irrigation in California

L. Sanchez, B. Sams, M. M. Alsina, Nigel Hinds, L. J. Klein, N. Dokoozlian
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引用次数: 29

Abstract

A variable rate drip irrigation (VRDI) system was implemented in early 2013 in a 4.05-ha area inside a drip-irrigated Cabernet Sauvignon vineyard measuring 12.5 total ha. The VRDI area was split into 140 15×15-meter irrigation zones which were watered independently during three seasons with weekly schedules based on estimated actual ET. Irrigation was scheduled with the objective of decreasing spatial variability while maintaining high yields. Compared to an adjacent, 4.05-ha, conventionally drip irrigated section of the vineyard (CDI); VRDI increased yield and water use efficiency in all three years and decreased spatial dependency and structure in 2013 and 2015.
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提高加州葡萄园用水效率和产量的可变率灌溉
可变速率滴灌(VRDI)系统于2013年初在一个12.5公顷的赤霞珠(Cabernet Sauvignon)滴灌葡萄园内的4.05公顷面积上实施。VRDI区域被划分为140个15×15-meter灌区,这些灌区在三个季节独立浇水,根据估算的实际ET每周进行灌溉。灌溉计划的目标是在保持高产的同时减少空间变异性。与相邻的4.05公顷传统滴灌葡萄园(CDI)相比;在2013年和2015年,VRDI提高了产量和水分利用效率,降低了空间依赖性和结构。
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Proceedings of the British Society of Animal Science Proceedings of the XIIIth International Symposium on Ruminant Physiology (ISRP 2019) Proceedings of the British Society of Animal Science Proceedings of the Seventeenth Biennial Conference of the Australasian Pig Science Association (APSA) Proceedings of the 9th Workshop on Modelling Nutrient Digestion and Utilization in Farm Animals (MODNUT)
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