Performances biologiques de quatres (04) biofertilisants sur la culture de l’amarante (Amaranthus hybridus) à Tori-Bossito.
Among the vegetable crops produced in Benin, amaranth, an endogenous crop, represents an important part of vegetable production in urban and peri-urban areas. However, its production is faced with problems such as the decline in soil fertility which causes considerable yield losses to the crop. The use of chemical fertilizers remains the most commonly used method in the management of soil fertility and which are the cause of several environmental and health problems. The objective of this challenge is to contribute to the organic production of amaranth without the use of chemical inputs by testing the effect of 04 types of biofertilizer on its production. It took place on the farm of the NGO – SUR LES TRACES DU ROI GUEZO in Tori-Bossito. A complete random block (BAC) design with 3 replicates and 5 treatments was used for the experiment. The treatments that were compared are made up of two (02) factors (treatments and time) to which one (1) absolute control was associated. A dose of 20t/ha was used for each biofertilizer (poultry manure, cow dung, pig slurry, and manure from plant matter) at a single frequency of application by the microdosing technique. Trial results showed a significant difference in yield between treatments. The poultry manure and cow dung tested made it possible to improve the production of the amaranth culture significantly, i.e. respectively 15.14 and 9.89 kg on average of fresh weight compared to the control whose yield in fresh weight is 0.89 kg on average receiving no amendment while the application of pig slurry and slurry from plant matter did not result in a significant improvement in yields, respectively 4.04 and 2.09 kg on average. The continuation of studies to better appreciate the effect of the manure of the plant materials tested on the fertility of the soil is therefore necessary for a successful organic production of amaranth.
Keywords: biofertilizer, amaranth, poultry manure, cow dung, pig manure, manure from plant matter.
Proposé et réalisé par : AHOSSINMIN Déssaï et AMEDJIHOUN Anani Rhétice Camus
