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首页> 外文期刊>Journal of Sustainable Agriculture >Subsurface Drip Irrigation as a Weed Management Tool for Conventional and Conservation Tillage Tomato (Lycopersicon esculentum Mill.) Production in Semi-Arid Agroecosystems.
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Subsurface Drip Irrigation as a Weed Management Tool for Conventional and Conservation Tillage Tomato (Lycopersicon esculentum Mill.) Production in Semi-Arid Agroecosystems.

机译：地下滴灌作为常规和保护性耕作番茄（Lycopersicon esculentum Mill。）在半干旱农业生态系统中生产的杂草管理工具。

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Soil and water conserving cropping systems that reduce dust emissions are being developed in the San Joaquin Valley of California. Subsurface drip irrigation (SDI) and conservation tillage (CT) are some techniques being included in these systems. Weed population dynamics under these systems continue to be explored. An experiment was conducted in 2004 and 2005 near Five Points, CA, to assess weed populations in processing tomato (Lycopersicon esculentum Mill.). The experimental design was a split-split plot with the main plots as irrigation [SDI or furrow irrigation (FI)], sub-plots as tillage [standard tillage (ST) or CT] and sub-sub-plots as weed control system [weed control (WC) or no weed control (NWC)]. In both years, weed emergence in the furrows of SDI treatments were almost eliminated. Similarly, weed densities on the beds were 46-96% lower in the SDI than FI plots. Tillage did not generally affect weed densities but interacted with irrigation in 2005 when the SDICT plots had 87% fewer weeds than SDI-ST plots. Weed biomass on the bed was not affected by irrigation or tillage system but the biomass in the furrows was 90% lower in the SDI than FI plots. Total and marketable tomato fruit yields were 33 and 46% greater, respectively, in the FI than the SDI system but tillage system had no effect on tomato yield. The WC compared toNWCplots had 20% greater tomato yield. Fruit quality (soluble solids concentration or pH) was not affected by irrigation or tillage systems. A combination of SDI and CT, cultivation in the furrows, and a WC treatment on the crop beds could be an ideal weed management system for sustainable tomato production in semi-arid regions.
机译：加利福尼亚州的圣华金河谷正在开发可减少粉尘排放的水土保持作物系统。这些系统包括地下滴灌（SDI）和保护性耕作（CT）。这些系统下的杂草种群动态将继续得到探索。 2004年和2005年，在加利福尼亚州五点附近进行了一项实验，以评估加工番茄的杂草种群（Lycopersicon esculentum Mill。）。实验设计是一个分割的样地，主要样地为灌溉[SDI或沟灌（FI）]，子样地为耕作[标准耕种（ST）或CT]，子样地为杂草控制系统[杂草防治（WC）或无杂草防治（NWC）]。在这两年中，几乎消除了在SDI处理中出现的杂草。同样，SDI上的床上杂草密度比FI田低46-6％。耕作一般不会影响杂草密度，但在2005年与灌溉相互作用，当时SDICT地块的杂草比SDI-ST地块少87％。床上的杂草生物量不受灌溉或耕作系统的影响，但SDI中犁沟的生物量比FI地块低90％。在FI中，番茄的总产量和可销售的番茄果实产量分别比SDI系统高33％和46％，但耕作制度对番茄产量没有影响。与NWCplots相比，WC的番茄产量高20％。水果质量（可溶性固形物浓度或pH）不受灌溉或耕作系统的影响。 SDI和CT的结合，在犁沟中的耕作以及在作物床上进行WC处理可能是半干旱地区番茄可持续生产的理想杂草管理系统。

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