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首页> 外文期刊>Acta Horticulturae >The potential for the sequential production of vegetables in the field with the 'Earth Box' system.
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The potential for the sequential production of vegetables in the field with the 'Earth Box' system.

机译：使用“ Earth Box”系统在田间连续生产蔬菜的潜力。

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摘要

Three vegetable crops, bell peppers, Capsicum annuum (cv. Capistrano); cabbage, Brassica oleracea var. capitata (cv. Tastie) and cucumber, Cucumis sativus (cv. Dasher II); were grown in Bradenton, Florida, USA, during the fall, winter and spring (September 1996-June 1997) in sequence in the Earth Box and compared with yields of the same three vegetable crops grown on the same land using the full-bed polyethylene mulch system with micro-irrigation. Soil in the micro-irrigated plots was the Eau Gallie fine sand. The Earth Box, made of recycled plastic, is a 244 cm long, 33 cm high and 40.6 cm wide closed production system. The bottom (9 cm deep) compartment contains the water reservoir and is separated from the 24-cm deep soil compartment above it by a perforated plate. There is no leaching of fertilizer or water, from the box to the environment. The boxes were filled with three growth media: 100% soil; 100% prepared medium mix of peat, sawdust and pine bark; and 50% fine sand: 50% prepared medium.Dry fertilizers were banded prior to planting in a narrow, 5 cm groove for the crops (N:P:K at kg/ha equivalent) as follows: bell pepper: 292:35:243; cabbage: 228:0:98; and cucumber: 119:0:82. The top and south side of the boxes were covered with a 0.032 mm thick white on black polyethylene film. Best yields in the boxes were recorded from the 50% medium treatment. Marketable yields of cucumbers, with 118 mm irrigation and bell peppers with 288 mm irrigation in the 50% medium treatment were similar toyields in the micro-irrigated plots with 320 mm and 344 mm irrigation, respectively for cucumbers and bell peppers. Cabbage yields were lower in the boxes than in the micro-irrigated plots. Very high residual concentrations of total soluble salts were measured in the growth media in the boxes after each cropping. Little or no differences were found in leaf elemental concentrations among the treatments.
机译：三种蔬菜，甜椒，辣椒（Capistrano）;卷心菜，甘蓝变种。 capitata（c .. Tastie）和黄瓜，Cucumis sativus（c .. Dasher II）;分别在秋季，冬季和春季（1996年9月至1997年6月）在美国佛罗里达州布雷登顿种植，并与使用全床聚乙烯在同一土地上种植的相同三种蔬菜作物的产量进行比较微灌膜系统。微灌区的土壤是Eau Gallie细砂。由再生塑料制成的Earth Box是244厘米长，33厘米高和40.6厘米宽的封闭式生产系统。底部（9厘米深）隔室包含储水槽，并通过多孔板将其与上方的24厘米深土壤隔室隔开。从盒子到环境，没有肥料或水的浸出。盒子里装满了三种生长介质：100％土壤; 100％准备的泥炭，木屑和松树皮中等混合料; 50％的细沙：50％的准备培养基。在播种之前，先在作物的5厘米窄槽中捆扎干肥料（N：P：K，按千克/公顷当量计算）：甜椒：292：35： 243;卷心菜：228：0：98;和黄瓜：119：0：82。盒子的顶部和南侧覆盖有0.032毫米厚的黑色聚乙烯薄膜白色。盒子中的最佳产量是从50％培养基处理中记录的。在50％的中等处理条件下，以118 mm灌溉的黄瓜和以288 mm灌溉的青椒的可销售产量与分别以320 mm和344 mm灌溉的微灌溉地块的黄瓜和青椒的产量相似。盒子里的白菜产量低于微灌区。每次播种后，在盒子的生长培养基中测得的总可溶性盐的残留浓度非常高。在处理之间，叶片元素浓度几乎没有差异。

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