The objective of this study was to value the effect of two organic fertilizers (dung of goat and manure of cow) on the growth parameters and yield of the three varieties of banana (musa spp) cultivated in Mulungu station.The test was conducted according to a device in split plot with three replicates. Three treatments have been valued: the dung of goat (T1), the manure of cow (T2) and a control treatment (without fertilizers) T0.The observations were about the circumference to the collar, the circumference to 1m the collar, the height of the banana trees, the number of the hands, the number of the fingers, the length of the fingers, the yield in régime. The gotten results showed that on the soil of the station of Mulungu, the banana trees dealt with 10 kg of dung of cool goat or manure of cow generated the best growths. However, the dung of goat to the same dose permit to get the best middle values of the length of the fingers 20.667cm, of outputs of 48,8 T/has is 75% during the survey.
The study has been initiated with the aims to evaluate effects of manure application on the yield of Irish potato. The experiment was conducted at (INERA) Mulungu using in a Complete Random Block with three replicates. Five treatments have been evaluated such as: application of DAP during planting, application of N+KCK three time as follow: once per week, once per two weeks and onceper three weeks together with a natural check without fertilizer.
The results showed that DAP and N+KCL applied once per week have improved the yield up to 128.5% in comparison to the check, however N+KCL applied once per two and three weeks have increased the yield from 51.7 to 62.9% compared to the natural check. The results show that farmer having Irish as one of his activities can be interested to increase the productivity.
This work had initiated to value the influence of four (4) different techniques of plantation of the sweet potato and to identify the one or those that would improve the production of tubers while increasing the yield of production of the sweet potato. The survey has been driven according to a device of the blocks subdivided some under-parcels (split-contact) to 3 repetitions. The treatments were constituted of 4 different fashions of plantation notably, on billon, on mound, on board and to dish considered like witness. Two (2) varieties of sweet potato have been used. The results show that the yield of the sweet potato has been improved more meaningfully by the technique of billonnage until 97,4% either 14,62t / Ha against 8,8t / Ha for the buttage fluently used by most farmers. These results show that the agriculturist can adopt the technique of billonnage that is a permitting to increase the output while keeping the humidity of soil during a good period.
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