摘要
This study was conducted in context to preserve tomato healthiness and to improve its yield in field.It aimed to assess some effects of non-aerated sheep manure and water jacinthe(Eichhornia crassipes)composts teas.It specifically consisted to evaluate two teas effects on tomato’s:(a)A.solani foliar disease,(b)yield and(c)mycorrhization intensity.The experiments were conducted according to completely randomized Fisher block with four repetitions.Three treatments were considered:plants receiving non-aerated sheep manure compost tea(TCFM),plants receiving non-aerated water jacinthe compost tea(TCJE),and control plants(T0)without compost tea application.The experiments were repeated twice.Teas application started at four-leaf stage of tomato plants.It was weekly and insured by manual foliar spraying and watering of the plants.To determine the preventive suppressive effects of compost teas,three days after its initial application,plants were artificially inoculated by foliar spraying with Alternaria solani sporal suspension.Data were analyzed with R software.Tukey Contrasts test at 5%threshold was used to compare means.Results showed that TCFM was the most suppressive on A.solani and also had enhanced tomato yield in field.Both teas did not have a meaningful effect on tomato mycorrhization intensity.These results showed that TCFM can serve as biopesticide and biofertilizer in tomato culture.
基金
We thank the Ministry of High Education and Scientific Research of Mali,and the Laval University of Quebec for financing this study
We also thank the Rural Polytechnic Institute(IPR/IFRA)of Mali for collaboration.
