Variable rate dosing in precision viticulture: Use of electronic devices to improve application efficiency
Variable rate dosing in precision viticulture: Use of electronic devices to improve application efficiency
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DOI：
10.1016/j.cropro.2009.12.022
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发表时间：
2010-03-01
期刊：
影响因子：
2.8
通讯作者：
Escola, A.
中科院分区：
文献类型：
--
作者：
Llorens, J.;Gil, E.;Escola, A.
在3个葡萄品种的不同生育期，比较了两种不同的喷雾方式。比较了单位地面面积(1 ha(-1))等容积率的常规喷洒方法和以电子方式补偿测量到的冠层尺寸变化的可变施肥法。为了根据喷头尺寸的变化实时调整喷嘴的流量，在喷嘴一侧安装了3个超声波传感器和3个电动阀，实现了喷头流量的实时修正。该样机的目的是精确地应用所需数量的喷雾液体，避免过量使用。平均而言，变量法可节省58%的施肥量，获得类似甚至更好的叶片沉积。(C)2009爱思唯尔有限公司。保留所有权利。
Two different spray application methods were compared in three vine varieties at different crop stages. A conventional spray application with a constant volume rate per unit ground area (1 ha(-1)) was compared with a variable rate application method designed to compensate electronically for measured variations in canopy dimensions. An air-blast sprayer with individual multi-nozzle spouts was fitted with three Ultrasonic sensors and three electro valves on one side, in order to modify the emitted flow rate of the nozzles according to the variability of canopy dimensions in real time. The Purpose of this prototype was to precisely apply the required amount of spray liquid and avoid over dosing. On average, a 58% saving in application volume was achieved with the variable rate method, obtaining similar or even better leaf deposits. (C) 2009 Elsevier Ltd. All rights reserved.