South Kivu is heavily influenced by East African supply chains and sources of knowledge, importing inputs and beans and maize is proving essential for clearances especially in the fields of experimentation in the riparian areas of Lake Kivu where even the fish are associated with agriculture for a good yield. In the DRC, intercropping systems are of paramount importance, particularly in the mountainous Kivu region where more than 80% of bean production by small farmers comes from intercropping on small areas. This practice is dictated by socio-economic and physical considerations, the scarcity of arable land, etc.; but also, the concern for the optimal exploitation of the land. But this practice also complicates the practice of weeding while reducing the yield of each associated crop. This is how our work set itself the objective of studying the effects of the spacings of the bean associated with the maize and of the no-till components in the riparian areas of Lake Kivu, in South Kivu, it being assumed that the spacings low weeding requirements would be reduced by improving the cover of the maize rows. To do this, a trial was carried out in and the device used was the split-plot with 3 repetitions and 36 plots. The main factor was made up of bean spacings with the variants 20x10, 20x20 and 20x30 cm and the secondary factor was that of the no-till components having as their objects plowing, mulching after plowing, mulching without plowing and the no-till plot. straw serving as control. The plots had 210 corn plants over 45m2 and the sub-plots 70 corn plants over 15m2. The results obtained attested that the components of no tillage generally influenced the yield in beans and also in maize because they presented the highest yield in maize 1.93 t / ha and in beans 2, 3 t/ha for maize. Combinations including plowing and mulching have the best returns, regardless of bean spacing. The rate of return is highest when no plowing or mulching is done, otherwise when sowing directly on the substrate without disturbing it. Indeed, field work can present costs ranging from $277 to $805 per hectare for average total revenues of $905 per hectare.

Agricultural underproduction in our country is largely linked to a lack of adequate structural organization of peasant farmers of food crops. This insufficiency plunges our especially rural environments into an almost chronic undernourishment. This study deals with the cassava sector in the Groupings of Irhambi-Katana and Bugorhe, in the territory of Kabare, Province of South Kivu in DR Congo. These two Groups produce a lot of cassava grown and consumed by almost all households but which is sold at a low price and only traders and processors derive a good profit from it in our communities to the detriment of producers. The data for this study were collected using the techniques of simple and participatory observation, the questionnaire, survey, documentation, and the chi-square test. The methods used are: the statistical method, the analytical, the descriptive and the synthetic method. This work responds to the questions and research objectives formulated in advance. We used Microsoft Word and Excel to enter the texts and process the data. Our hypotheses were tested by the statistical results of Chi-square. The study identifies and analyzes the main difficulties of cassava related to production, marketing and its by-products. These difficulties handicap the socio-financial profitability of this product, which penalizes their poorly or unorganized producers. To make it profitable, it is necessary to organize their producers in a promising sector so that they are able to improve farming techniques and transform this cassava into high quality flour. The success of this strategy is possible if our development partners adheres and and that they strongly support the organization and proper functioning of promising agricultural sectors.