José Celis Hidalgo, Marco Sandoval Estrada, Mario Alfodín Briones Luengo
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引用次数: 6
摘要
本研究的目的是评价不同有机废物的植物毒性。对退化花岗岩土壤(Alfisol)上生菜的萌发指数(IG)、胚根/下胚轴长度和一年生黑麦草生物量进行了测定。有机废弃物为:城市污泥(LM)、鱼养殖鲑鱼粪便(LPT)和湖网箱养殖鲑鱼粪便(LSL)。准备了五种剂量的这些材料(污泥/土壤):25、50、75、100和150吨公顷-1。还包括一个没有添加的对照。结果表明，污泥/土比在25 ~ 100 t hm -1范围内，对生菜的IG、胚根和下胚轴长度无显著影响。对于一年生黑麦草，在25 ~ 50 t hm -1剂量范围内进行有机改性的所有处理均显著增产
BIOENSAYOS DE FITOTOXICIDAD DE RESIDUOS ORGÁNICOS EN LECHUGA Y BALLICA ANUAL REALIZADOS EN UN SUELO ALFISOL DEGRADADO
The aim of this study was to evaluate the phytotoxicity of different organic wastes. The germination index (IG), radicle/hypocotyl length of lettuce and the biomass of annual ryegrass were evaluated on a degraded granitic soil (Alfisol). The organic wastes were: Municipal sludge (LM), salmon manure from pisciculture (LPT), and salmon manure from lake-cage farming (LSL). Five doses of these materials (sludge/soil) were prepared: 25, 50, 75, 100 and 150 t ha-1. A control without addition was also included. Results indicated that the IG, as well as radicle and hypocotyl length of lettuce was not significantly affected when sludge/soil ratio ranged between 25 to 100 t ha-1. Regarding annual ryegrass all treatments organically amended at dose between 25 and 50 t ha-1 produced significantly
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