Genotypic Differences of Forage Crop Tolerance to Acid Soils

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摘要 TwentyeightspeciesofforagecropswereplantedonacidsoilsderivedfromQuaternaryredclay(pH4.16)andredsandstone(pH4.55)tostudygenotypicdifferencesoftheforagecropsintolerancetoacidsoilsasaffectedbyliming,phosporusandpotassiumfertilizerapplication.Eightforagespecies,LoliumnultiflorumL.,Brachiariadecumbens,Digitariasumtisii,Melinisminutiflora,Paspalumdilatatum,Paspalumwettsteinii,SatariaviridisBeanvandShcep'sFestuca,werehighlytolerantoacidsoils,andgrewrelativelywellinthetestedsoilswithoutlimeapplication,whereasmostoftheother20testedforagespeciessuchasLoliumperenneL.,MeadowFestucaandTrifoliumpraenseL.wereintoleranttoacidsoil,showingretardedgrowthwhenthesoilpHwasbelow5.5andsignificantincreaseindrymatteryieldsbyphosphrusfertilizerapplicationatsoilpH6.0Resultsshowedthatlargedifferencesintolerancetoacidsoilsexistedamongtheforagespecies,andtoleranceofthefroagespeciestoacidsoilsmightbecloselyassociatedwiththeirtolerancetoAlandPefficiency.
机构地区 不详
出处 《土壤圈:英文版》 1998年4期
出版日期 1998年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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