Residual Effect of Lead on Early Growth of Fluted Pumpkin ( Telfairia occidentalis Hook F) in an Ultisol

Journal of Applied Sciences and Environmental Management

Frank, Uzu¹  Robert, Orhue Ehi¹  Mathew, Ekhomun Akhere¹ 

关键词: Residual;    effect;    ultisol;    excluder;    growth;    protein;   

DOI  :  

学科分类：环境科学（综合）

来源: University of Port Harcourt * Department of Pure and Industrial Chemistry

【 摘 要 】

The greenhouse and field trials were carried out at Faculty of Agriculture, University of Benin,Benin City to find out the residual influence of Pb on some Telfairia occidentalisagronomic characters and soilchemical properties. The soils used were previously treated with 0, 50, 100, 200 mg per 5 kg soil in the greenhousewhile 0, 20, 40, 80 kgha-1 equivalent to that of greenhouse were used in the field trial. The soils were previouslyused for Telfairia occidentalis cultivation. The completely randomized and randomized complete block designswere used in greenhouse and field trials respectively. Results indicated that with the exception of N and K in thefield trial all other soil nutrient components decreased inconsistently with increased Pb concentrations in the trialscompared to pre-trial soil nutrient content. The Pb, N, P, K, Mg, Ca, Na, Fe, Mn, Zn and their uptake by the plantdecreased significantly with increase in Pb concentrations. The crude protein content of the plant also reducedsignificantly with increased Pb concentrations. The dry matter yield, plant height, stem girth and number of leaveswere depressed significantly by the Pb compared to the control.

【 授权许可】

Unknown