Ring management of soils and crops in the west African semi-arid tropics: The case of the mossi farming system in Burkina Faso
Ring management of soils and crops in the west African semi-arid tropics: The case of the mossi farming system in Burkina Faso
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DOI：
10.1016/0167-8809(93)90125-9
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发表时间：
1993-12
期刊：
影响因子：
--
通讯作者：
C. Prudencio
中科院分区：
文献类型：
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作者：
C. Prudencio
不同的种植模式和种植频率通常在西非半干旱热带地区典型农户大院周围的同心环中观察到，并产生本研究中所称的环管理系统。本文介绍了在布基纳法索莫西高原的两个农业气候带观察到的环管理系统的技术和经济特点。在每个区域可以确定三个主要的土壤和作物管理环，管理和土地利用强度从内环到外环递减。从农民的角度讨论了该制度的决定因素和基本原理。结果指出，作物和品种的成熟期，牲畜对作物造成损害的概率，从化合物到田间的距离和土壤的自然肥力基础，作为农民用来减轻主要生产制约因素，如水分供应差和不可靠，土壤肥力低和劳动力瓶颈的土壤和作物管理战略的主要工具和决定因素。一些假设通常制定的土壤肥力保持在该地区也进行了测试。研究结果表明：（1）该地区的耕作制度不可避免地会开采土壤的自然肥力基础，当它们向更持久的耕作方式演变时，生产力会降低;（2）只有低级管理技术适合该地区的耕作制度，不具有普遍性，只能适用于部分典型农田。
Different cropping patterns and frequencies of cultivation are generally observed in concentric rings around the typical farmer's household compound in the West African semi-arid tropics and generate what is referred to in this study as the ring management system. The paper presents the technical and economic characteristics of the ring management system as observed in two agroclimatic zones of the Mossi Plateau in Burkina Faso. Three major soil and crop management rings can be identified in each zone, with management and land use intensity declining from the inner rings to the outer ring. The determinants and rationale of the system from the farmer's point of view are discussed. The results point out the maturity period of crops and varieties, the probability of livestock damage to crops, the distance from the compound to the field and the natural fertility base of soils as major instruments and determinants of the soil and crop management strategies used by the farmer to alleviate major production constraints such as poor and unreliable moisture availability, low soil fertility, and labour bottlenecks. Some hypotheses commonly formulated with respect to soil fertility maintenance in the region are also tested. The results suggest that common beliefs such as: (1) the farming systems in the region inevitably mine the natural fertility base of the soil and become less productive when they evolve toward more permanent cultivation practices; (2) only low management technologies are suitable for the farming systems in the region, do not have generality and can only apply to a portion of the typical farm land.