Establecimiento de postes de Chacah (Bursera simaruba, L. Sarg.) como cerco vivo

摘要

TheeffectofthesoilandthestakediameterwasevaluatedintheestablishmentofBurserasimaruba(Chacah).TheresearchwasdevelopedinthecattleraisingzoneoftheeastofYucatán,inatropicalclimateAw1,withrainfallandannualmeantemperatureof1200mmand26oC,respectively.Theresearchbeganinthedryseason(May),withtheharvestofthepostsof2.20moflength;nbsp;theseweregroupedinthreediametersnbsp;4-6cm(thin),nbsp;7-10cm(medium),and11-15cm(thick)andwereplantedatnbsp;15-20cmofdepthintwotypesofsoilCambisol(Chacluum)andRendzina(Chichluum).Sixmonthsafterplanting,datawererecordedofthenumberandlengthofthebranches(cm),drymatter(g)ofthefoliageandthesurvivalnbsp;(%).Thenumbersofrootsweremeasured,nbsp;thelength(cm)andthewidth(cm).Thedesignwascompletelyatrandom,nbsp;withafactorialarrangementof2x3(soilsandpostdiameter).Therewerefiverepetitionswithfivepostsineach.Theresultsindicatedthatthefactorstakediametermodifiedgraduallythebranchlengthwiththethindiameterposthavingbranchesof7.2cmnbsp;versusthemediumandthickthatwereequalwithmeanof9.1cm.Thedrymatteroffoliageperpostwasincreasedwhenthepostdiameterincreasedfromthin(67g)tomedium(132g)andthick(151g);effectofsoilwassimilarwith117gofdrymatterperpost.Thesurvivalrateswere70,94and94%,forthethin,mediumandthickposts,respectively.Thesoiltypehadnoeffectonsurvival(96%Cambisol)and87%Rendzina).nbsp;ThenumberofrootsforCambisolwas11.3roots/postandforRedzina9.5.Thethin,mediumandthickpostspresentedvaluesof7.8,8.7and14.7rootsperplant.TheCambisolsoilsupportedgreaterrootlength(19.3cm)versusRendzina(13.5cm).Forthediameteroftheroots,thecombinationofCambisolsoilwiththethinpostsupportedthebestwidthofroot(0.72cm).ItisconcludedthatispossibletoestablishChacah(Burserasimaruba)innbsp;CambisolandRendzinasoils,preferablyusingmediumandthickstakestoobtainbettersurvival..