World Journal of
Pharmaceutical and Life Sciences

EFFECTS OF LIQUID MANURE FROM "Lantana camara", COMFREY "Symphytum officinale", AND FARM, ON THE PRODUCTIVITY OF CARROT "Dacus carotta" Var. Nantes IN THE REGION OF VATOVAVY FITOVINANY IN MADAGASCAR

*Randriamampianina Noelison, Ravoniarison Nivohanintsoa E., Rakotoarimanana Vonjison

ABSTRACT

This study aims to improve the productivity of carrot "Dacus carota" in “Vatovavy Fitovinany” region, in the southeastern part of Madagascar. Liquid manure from: "Lantana camara", comfrey "Symphytum officinale", farm, Lantana mixed with comfrey and Lantana mixed with farm, were used as fertilizer. They were watered at the foot of each carrot plant, at a rate of 0.5 liters repeated 3 times a week, on an experimental surface of 5 random blocks, each of which consists of 6 elementary plots of 3 m x 2.60 m. Mixed liquid manure from Lantana, comfrey and farm was more favorable for the growth in length of the leaves on the average of 48 cm. The highest average leaf weights were obtained with liquid manure from Lantana, comfrey and farm unmixed at the respective weight of 212 g, 211 g, 246 g compared to 46 g for the control. The different types of manure have significant effects on the average root weight. The carrot roots obtained after fertilization with comfrey manure have the highest average weight of 311 g compared to the control which is 48 g. Carrot root yield is almost six times higher when the crop was treated with these different manures. The best yield of 14.34 t / ha was obtained in plots fertilized with comfrey liquid manure, while for non-treated control plants, the yield was only 2.22t / ha.

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