Changes in calcium accumulation and utilization efficiency and their impact on recycling,immobilization,and export across the oil palm cycle  

作　　者：Ismael de Jesus Matos Viégas Luma Castro de Souza Eric Victor de Oliveira Ferreira Milton Garcia Costa Glauco André dos Santos Nogueira Vitor Resende do Nascimento Candido Ferreira de Oliveira Neto 

机构地区：[1]Capanema Campus,Federal Rural University of the Amazon(UFRA),Av.Barao de Capanema,Caixa D'agua,5514-6434,Para,Brazil [2]Center of Agricultural and Environmental Sciences,Federal University of Maranhao(UFMA),Chapadinha,BR-222,km 04,SN,Boa Vista,65500000,Maranhao,Brazilc [3]Capitao Poço Campus,Federal Rural University of the Amazon(UFRA),Tv.Pau Amarelo,S/n-Vila Nova,68650-000,Capitao Poço,Para,Brazil [4]Department of Soil Science,Sao Paulo State University(Unesp),School of Agricultural and Veterinarian Sciences,Jaboticabal,Via de Acesso Prof.Paulo Donato Castelane,Castellane-S/N-Vila Industrial,14884-900,Sao Paulo,Brazil [5]Institute of Agricultural Sciences(ICA),Federal Rural University of the Amazon(UFRA),Estr.Principal da Ufra,2150,Curio-Utinga,66077-580,Belem,Para,Brazil

出　　处：《Oil Crop Science》2024年第3期143-150,共8页中国油料作物学报(英文版）

摘　　要：Effective calcium(Ca)management is crucial for optimizing oil palm cultivation and enhancing crop yield.This study aimed to gain insights into the dynamics of Ca concentration,accumulation,exportation,immobilization,and recycling in various oil palm organs relative to plant age.The experiment was conducted at the Agropalma enterprise site in the northeastern region of Para State,Brazil,evaluating seven plant age treatments:2,3,4,5,6,7,and 8 years old.Employing a completely randomized design with four replications.The results demonstrated an age-related increase in Ca concentration in petioles,rachis,arrows,male inflorescences,peduncles,and fruits.Furthermore,Ca accumulation exhibited an upward trend in all organs with progressing plant age.Notably,the study revealed an enhanced Ca use efficiency across all plant organs in correlation with the age of oil palm cultivation.These findings underscore the dynamic nutritional demands of oil palm,influencing Ca immobilization,cycling,and export throughout its developmental stages.

关 键 词：Elaeis guineensis Jacq Ca cycling Ca export Ca immobilization Ca use efficiency Plant nutrition AMAZON 

分 类 号：S565.9[农业科学—作物学]