7 pages, This study was carried out to determine the fish farming practices, development and constraints among fish farmers in Ibi Local Government Area (LGA), Taraba State, Nigeria. A sampling frame was drawn from the list of 740 fish farmers registered with the Department of Fisheries and Forestry, Ibi LGA, Taraba State. A multistage stratified design was used for selecting the respondents for the study. The first stage involved stratification of the Local Government into Districts (Sarkin Kudu, Dampar and Ibi). The second stage was selection based on the prevalence of fish farmers in the districts. The third stage involved random selection of 90, 69 and 63 (30%) fish farmers from each district to obtain a sample size of 222 respondents. Data from the study were collected through structured questionnaire and scheduled interview administered to the respondents. Data were analyzed using descriptive (frequency distribution and percentages) and inferential (non parametric test at coefficient of 0.116 and p-value of < 0.05) statistics. Results show that concrete tanks were mostly used by fish farmers (35.0%) and sourced fingerlings for stocking through personal hatchery (34.9%), practiced poly culture (58.90%) and monoculture techniques (56.50%). The culture system was predominantly intensive (90.0%), Clarias spp were cultured (68.9%) and fed on imported floating feed (72.0%). The major constraints to fish production are inadequate infrastructure, high cost of inputs, poor quality of fish seed and poor extension services on fish farming. The study recommends that the Government should grant import duty waiver on fish farming inputs and monitor the implementation so that the policy can benefit intending and existing fish farmers. Efforts should be intensified on different areas of fish farming development.
31pgs, This article aims at investigating the impact of financial supports from agricultural policy on farm-size dynamics. Since not all farms may behave alike, a non-stationary mixed-Markov chain modelling (M-MCM) approach is applied to capture unobserved heterogeneity in the movements of farms across economic size (ES) classes. A multinomial logit specification is used for transition probabilities and the parameters are estimated by the maximum likelihood method and the Expectation-Maximisation (EM) algorithm. An empirical application to an unbalanced panel from 2000 to 2018 shows that French farming consists of ‘almost stayers’, with a high probability of remaining in the same ES class over time, and ‘likely movers’, which present a higher probability of a change in size. The results also show that the impact of subsidies and other economic factors depends greatly on the type that a farm belongs to. These findings confirm that individual characteristics of farmers may be relevant for policy efficiency and more attention should thus be paid to unobserved farm heterogeneity in both policy design and the assessment of their impacts on farm-size dynamics.
4pgs, AppHarvest has expanded its controlled-environment agriculture from producing only tomatoes to include greens, berries, and cucumbers. Does a deep drop in revenue point to problems or just growing pains?
9pgs, Soil loss due to crop harvest contributes to land degradation, and knowledge of this challenge can guide the choice of crops for sustainable agriculture. Nigeria is the largest producer of cassava (Manihot esculenta Crantz) and the third largest producer of peanut (Arachis hypogaea Linn) in the world. Due to limited information on soil loss during peanut and cassava harvests worldwide, and cost of nutrient loss, a two-year field experiment was conducted to compare soil loss due to harvesting of peanut and cassava and to estimate cost of nutrient loss due to crop harvest under traditional agriculture. Peanut pod yields of 2.39 and 2.08 t ha–1harvest–1 removed 0.62 and 0.58 t ha–1 harvest–1 during peanut harvest, respectively, for years 1 and 2. Similarly, cassava yields of 22.71 and 21.40 t ha–1 harvest–1 removed 1.11 and 0.91 t ha–1harvest–1 during cassava harvest, respectively, for years 1 and 2. Crop yields strongly correlated with soil loss due to peanut harvest (R2= 0.36; p < 0.001) and soil loss due to cassava harvest (R2 = 0.23; p < 0.01). Significantly higher soil loss due to cassava harvest compared to peanut harvest can be ascribed to higher cassava yield. Also, soil nutrient loss due to crop harvest was significantly (p < 0.001) higher for cassava compared with peanut by 27.6% phosphorus (P) and 73.7% potassium (K) for the first year and 39.2% P and 79.1% K for the second year. Fertilizer equivalent cost of P and K losses due to cassava harvest for the two years was higher than that of peanut by US$29 ha–1. The study indicated that the intensity of nutrient loss by harvesting is largely dependent on the crop type, and harvesting of cassava can deplete soil nutrients faster than that of peanut under traditional agriculture. Sequential planting of cassava (deep rooted crop) followed by peanut (shallow rooted crop) as a crop rotation management practice is recommended to mitigate soil loss due to continuous harvesting of cassava, and harvesting with thorough shaking technique is also suggested to reduce nutrient loss potential of crop harvesting.
15 pages, In the past few decades, climate-smart agriculture (CSA) has been promoted to improve food security and raise incomes as a strategy for sustainable agricultural development. The adoption rates among smallholder farmers, particularly in Africa, remain low and have varied in different contexts. This study investigated the market participation spillover effects from the adoption of CSA practices in central Malawi using the control function approach to address any endogeneity in the relationship. The hypothesis that the extent of the use of CSA practices in the past 10 years can lead to production surpluses that enable smallholder farmers to participate in markets and thereby increase in agricultural incomes was tested. Using survey data from 470 households in two districts of rural Malawi, a clear positive association between the number of CSA practices used and the extent of market participation was found. The findings suggest, among others, the need to intensify efforts to promote CSA adoption specifically over a longer period for benefits of the technologies to materialise. The adoption of CSA practices over time enhances crop market participation, an important aspect required for production sustainability as well as for transforming agriculture towards greater market orientation among smallholder farmers.
23 pages, This study aimed to uncover the values that underlie farmers’ strategic choices for business development. In particular, we uncovered farmers’ values related to business development through farm diversification and compared these with values regarding business development through non-diversified farm activities.
