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More than 40% of the total oil palm area in Indonesia is owned and managed by smallholders. For large plantations, guidelines are available on so-called 'best management practices', which should give superior yields at acceptable costs when followed carefully. We tested a subset of such practices in a sample of smallholder plantations, aiming to increase yields and profitability. We implemented improved practices (weeding, pruning, harvesting, and fertiliser application) in 14 smallholder plantations of 13–15 years after planting in Jambi province (Sumatra) and in West-Kalimantan province (Kalimantan) for a duration of 3 to 3.5 years. During this period, we recorded yields, measured palm leaf parameters and analysed leaf nutrient contents. Yield recording then continued for an additional two years. In the treatment plots, the yields did not increase significantly, but the size of the bunches and the size of the palm leaves increased significantly and substantially. The tissue nutrient concentrations also increased significantly, although after three years, the potassium concentrations in the rachis were still below the critical value. Because of the absence of yield increase and the additional costs for fertiliser inputs, the net profit of implementing better management practices was negative, and 'business as usual' was justified financially. Some practices, such as harvesting at 10-day intervals and the weeding of circles and paths, were received positively by those farmers who could implement them autonomously, and were applied beyond the experiment. It is challenging to find and implement intensification options that are both sustainable and profitable, that have a substantial impact on yield, and that fit in the smallholders' realities. On-farm experimentation and data collection are essential for achieving sustainable intensification in smallholder oil palm plantations. [ABSTRACT FROM AUTHOR]

Purpose: We assessed cocoa farmers' access to, demand for, and satisfaction with five innovation support services and the factors shaping them. Design/methodology/approach: We used data from 10 focus groups and a survey of 421 farmers in Central Cameroon. Data were analysed using descriptive and inferential statistics, and regression models. Findings: Results showed that farmers mostly receive training and advice whereas inputs, credit, and equipment are the most demanded services. Training and advice obtained the highest perceived quality score. Conflicts around distribution and capture by leaders were relatively frequent regarding inputs and equipment. Farmers' satisfaction with service outcomes increased with the number of services received and any services above training and advice yielded higher outcomes. Location, involvement in certification, seniority, and leadership position in farmers' organisations were significantly associated with access and demand for at least two services while satisfaction with quality was mostly influenced by prior services received and the extent to which they matched expectations. Practical implications: Farmers' demands for services are diverse, hence the importance of providing them with either service bundles or options from which they can choose. Additional efforts are needed from service providers to create an enabling environment for the implementation of the disseminated sustainable management practices. Theoretical implications: Farmers' satisfaction with services can be analysed from different perspectives. Both endogenous and exogenous factors determine access to, demand for, and satisfaction with services. Originality/value: This research is the first to assess the provision of innovation support services in the cocoa sector using an analytical framework that combines demand, access, and satisfaction with five services. [ABSTRACT FROM AUTHOR]

Smallholder farming systems are vulnerable to disruptions. The COVID-19 pandemic weakened the financial ability of the Malian government in the 2020–21 growing season to subsidize cotton farmers’ access to mineral fertilizers and the cotton company (CMDT) could not offer a good cotton price. Consequently, farmers refused to grow cotton, leading to a cotton crisis with implications on crop production and farmers’ livelihoods. We used data collected over three consecutive growing seasons in the old cotton basin of Koutiala and analysed them using two-way mixed ANOVA over selected indicators related to farm and household components. The analysis was done for farms of different resource endowment, through comparing the cotton crisis season to the two previous normal seasons. Besides the abandonment of cotton, the total cropped area and area devoted to maize reduced in 2020–21, while the area allocated to millet, sorghum and cowpea increased, especially for cotton farmers with medium and high resource endowments. In addition, the nitrogen use intensity dropped at the farm level and particularly for the cereal crops, but without negative effect on yields of maize, millet and sorghum. Food self-sufficiency and income per capita significantly increased for the medium resource farms, while income dropped for the high resource farms with large herds. The farming system was able to absorb the shock of limited access to fertilizer for one season, due to the elimination of otherwise strong labour competition between cotton and cereal crops, favourable weather conditions and farmers’ responsive coping with the cotton crisis. This study revealed the importance of disaggregated livelihood evaluations, because resource endowments have implications not only for the actual effect on livelihoods, but also for farmers’ adaptive capacity. [ABSTRACT FROM AUTHOR]

The notion of principles, and the sense that they are different from but closely linked to practices, is deeply rooted in the agronomy literature. However, these terms are currently used by different authors to mean very different things. This paper explores these various uses and meanings. We argue that an understanding of the use of apparently innocuous, everyday words like principles and practices provides a valuable insight into on-going debates, contestation and politics about the future of agriculture and food. In the case of principles, it is important to understand the forms they take, by whom they are proclaimed and for what purpose(s). We find that while most alternative agricultures define themselves through a set of principles, these do not challenge or undermine the scientific principles that underpin mainstream agronomy. Further, we argue that to articulate and proclaim principles is to seek to exercise discursive power. Specifically, proclaiming principles or defining a favoured approach to agriculture by articulating a specific set of principles, is to exert authority, bolster legitimacy and claim a place in a crowded and contested marketplace. [ABSTRACT FROM AUTHOR]

Can farmers in sub-Saharan Africa (SSA) boost crop yields and improve food availability without using more mineral fertilizer? This question has been at the center of lively debates among the civil society, policy-makers, and in academic editorials. Proponents of the "yes" answer have put forward the "input reduction" principle of agroecology, i.e. by relying on agrobiodiversity, recycling and better efficiency, agroecological practices such as the use of legumes and manure can increase crop productivity without the need for more mineral fertilizer. We reviewed decades of scientific literature on nutrient balances in SSA, biological nitrogen fixation of tropical legumes, manure production and use in smallholder farming systems, and the environmental impact of mineral fertilizer. Our analyses show that more mineral fertilizer is needed in SSA for five reasons: (i) the starting point in SSA is that agricultural production is "agroecological" by default, that is, very low mineral fertilizer use, widespread mixed crop-livestock systems and large crop diversity including legumes, but leading to poor soil fertility as a result of widespread soil nutrient mining, (ii) the nitrogen needs of crops cannot be adequately met solely through biological nitrogen fixation by legumes and recycling of animal manure, (iii) other nutrients like phosphorus and potassium need to be replaced continuously, (iv) mineral fertilizers, if used appropriately, cause little harm to the environment, and (v) reducing the use of mineral fertilizers would hamper productivity gains and contribute indirectly to agricultural expansion and to deforestation. Yet, the agroecological principles directly related to soil fertility—recycling, efficiency, diversity—remain key in improving soil health and nutrient-use efficiency, and are critical to sustaining crop productivity in the long run. We argue for a nuanced position that acknowledges the critical need for more mineral fertilizers in SSA, in combination with the use of agroecological practices and adequate policy support. [ABSTRACT FROM AUTHOR]