scholarly journals Weather Differentials and Discount Rate Impact on Farmers’ Net Revenue: Modeling Results from Ghanaian Data Focusing on Different Agro-Climatic Zones

2021 ◽  
pp. 2150012
Author(s):  
Isaac Dasmani ◽  
Samuel K. N. Dadzie
Keyword(s):  
Climate Change ◽  
Soil Fertility ◽  
Discount Rate ◽  
Crop Production ◽  
Critical Issue ◽  
Management Policy ◽  
Negative Effects ◽  
Climatic Zones ◽  
Net Revenue ◽  
Using Data

In most developing countries, climate variabilities and discount rate played an integral role in the decision-making of farmers, which mostly affect their net revenue. Our study employs Ricardian models to empirically verify this hypothesis using data collected from three major agro-climatic zones in Ghana. We particularly estimated the comparative effect of climate change variability, discount rate, and soil fertility; due to trade-off effect of certain farm practices in response to climate change across major climatic zones and also the fact that discount rate becomes an extremely critical issue in formulating and evaluating conservation and management policy to address climate change. The result indicates that discount rate has a positive and significant effect on the farmers’ net revenue. Further, effect of changes in temperature on food crop production and hence net revenue is more felt in the forest and savannah zones. On the other hand, an increase in rainfall has significant negative effects on crop net revenues and whole-farm net revenue, but a positive effect on net revenue of farmers in the savannah zone. We also found a significant increase in soil fertility to increase crop net revenues.

scholarly journals A RICARDIAN ANALYSIS OF THE IMPACT OF CLIMATE CHANGE ON PERMANENT CROPS IN A MEDITERRANEAN REGION

New Medit ◽  
2019 ◽  
Vol 18 (1) ◽  
pp. 41-51 ◽  
Author(s):  
Giuseppina Migliore ◽  
Cinzia Zinnanti ◽  
Emanuele Schimmenti ◽  
Valeria Borsellino ◽  
Giorgio Schifani ◽  
...  
Keyword(s):  
Climate Change ◽  
Mediterranean Region ◽  
Olive Tree ◽  
Mediterranean Area ◽  
Future Climate Change ◽  
Impact Of Climate Change ◽  
Farm Accountancy Data Network ◽  
Net Revenue ◽  
Using Data ◽  
The Impact

This is the first study which explores the impact of climate change in Sicily, a small Mediterranean region of Southern Europe. According to research, Mediterranean area has shown large climate shifts in the last century and it has been identified as one of the most prominent “Hot-Spots” in future climate change projections. Since agriculture is an economic activity which strongly depends on climate setting and is particularly responsive to climate changes, it is important to understand how such changes may affect agricultural profitability in the Mediterranean region. The aim of the present study is to assess the expected impact of climate change on permanent crops cultivated in Sicilian region (Southern Italy). By using data from Farm Accountancy Data Network and Ensembles climatic projections for 2021-2050 period, we showed that the impact of climate change is prominent in this region. However, crops respond to climatic variations in a different manner, highlighting that unlike the strong reduction in profitability of grapevine and citrus tree, the predicted average Net Revenue of olive tree is almost the same as in the reference period (1961-1990).

scholarly journals Effect of Institutional and Farmer Based Climate Change Adaptation Measures on Crop Production in Mavuria Ward, Mbeere South Sub-county, Embu County, Kenya

2020 ◽  
pp. 171-182
Author(s):  
Samuel K. Nyaga ◽  
Geofrey K. Gathungu ◽  
Justin Nyaga ◽  
Jafford R. Njeru
Keyword(s):  
Climate Change ◽  
Soil Fertility ◽  
Climate Change Adaptation ◽  
Water Conservation ◽  
Crop Production ◽  
Pearson Correlation ◽  
Primary Data ◽  
Adaptation To Climate Change ◽  
Adaptation Measures ◽  
Adaptation Mechanisms

Africa is under pressure from climate stresses and is highly vulnerable to the impacts of climate change. In Kenya, agriculture is the backbone of the economy making it an important contributor to food security of rural households. Currently crop productivity is being affected by continued climate variations and decline in soil fertility. Adaptation to climate change requires to be given high and urgent priority for sustainable crop production. A study was conducted in Mavuria ward, Mbeere South Sub-County, Embu County to evaluate the effects of climate change adaptation on crop production. The study used both descriptive and experimental research designs. The primary data on adaptation measures was collected from farmers and institutions using questionnaires. In the data analysis, descriptive statistics were used to organize the climate data and that of the respondents into frequencies. Further, a Pearson correlation test was done to determine the relationship between farmer and institutional based mechanisms on adaptation to climate change at α=0.05. The main adaptation mechanisms identified were soil fertility improvement, soil and water conservation, early planting, pest and disease control, provision of certified seeds, and awareness creation. In view of these findings, the study recommends continuous implementation of these measures that can help strengthen farmers and institutional adaptation mechanisms towards climate change for improved crop production.

scholarly journals Optimization of rainwater harvesting system design for smallholder irrigation farmers in Kenya: a review

2021 ◽  
Author(s):  
Kevin O. Odhiambo ◽  
Basil T. Iro Ong'or ◽  
Edwin K. Kanda
Keyword(s):  
Climate Change ◽  
Adverse Effects ◽  
Crop Production ◽  
Rainwater Harvesting ◽  
Smallholder Farmers ◽  
Poor Performance ◽  
Design Parameters ◽  
Negative Effects ◽  
Supplemental Irrigation ◽  
Global Food Security

Abstract The adverse effects of climate change on agriculture have been felt across the globe. Smallholder farmers in sub-Sahara Africa are particularly more vulnerable to the effects of climate change leading to loss of income and livelihood thus affecting the global food security. Rainwater Harvesting (RWH) is emerging as a viable option to mitigate the negative effects of climate change by supporting rain-fed agriculture through supplemental irrigation. However, smallholder farmers are still grappling with a myriad of challenges hindering them from reaping the benefits of their investment in RWH systems. This review explores some of the factors behind the poor performance of RWH systems in Kenya and also seeks to suggest techniques that can be applied to optimize the design parameters for improved performance and the adoption of RWH systems. According to the review, RWH has the potential to mitigate the adverse effects of climate change among smallholder farmers. It allows for crop production beyond the growing season through supplemental irrigation. However, their impacts have been minimal due to the consistent poor performance of RWH systems. This is attributed to inefficiencies in design and construction brought about by lack of required technical skills among RWH system designers and implementers. Proper design and implementation are therefore paramount for better performance and adoption of RWH systems in the region. This will ensure that RWH systems are reliable, technically and economically feasible as well as possess a desirable water-saving efficiency.

scholarly journals Farmer Perception and Adaptation Strategies on Climate Change in Lower Eastern Kenya: A Case of Finger Millet (Eleusine coracana (L.) Gaertn) Production

2016 ◽  
Vol 8 (12) ◽  
pp. 33
Author(s):  
Madegwa Yvonne ◽  
Onwonga Richard ◽  
Shibairo Solomon ◽  
Karuku George
Keyword(s):  
Climate Change ◽  
Food Insecurity ◽  
Soil Fertility ◽  
Crop Production ◽  
Finger Millet ◽  
Production Systems ◽  
Random Number Generator ◽  
Farming Systems ◽  
Sampling Procedure ◽  
Smallholder Farming

Eastern Kenya, a semi-arid region, is characterized by low and erratic rainfall, high temperatures, and low soil fertility. Climate change has further worsened the situation leading to frequent droughts and hence increased food insecurity. Traditional crops like finger millet are possible solutions to combating changing climate due to their drought resistance nature, ability to produce high yields with little inputs and high nutritional content. It is against this backdrop that a survey was carried out in Mwala and Katangi divisions of Machakos and Kitui counties, respectively, to assess farmer’s perception on climate change, coping and adaptation mechanisms in finger millet production systems in smallholder farming systems of lower eastern Kenya. Data was collected, using semi-structured questionnaire, from 120 farmers i.e. 60 in each division. A stratified random sampling procedure, with location as a stratum was used to select respondent’s households. A computer random number generator was used to select number of households in each stratum. Maize and beans were the most popular crops grown by over 98% of the farmers in both sub-counties. Farmers also grew drought tolerant legumes; cow peas, green grams pigeon peas and cereals; sorghum and finger millet. Temperature rise was ranked highest with 88% and 98%, followed by prolonged drought with 70% and 72%, irregular rainfall at 69% and 81% and increased wind intensity at 22% and 28% at Machakos and Kitui, respectively, as aspects of climate change perceived by farmers. Farmers had taken up early planting at 88.6% and 93.7%, use of organic inputs at 89% and 92%, introduced new tillage practices, by applying ridges and furrows and tied ridges at 45% and 54%, and by adopting irrigation at 13%, and 9%, as coping strategies to climate change in Machakos and Kitui, respectively.It can be concluded that farmers in Machakos and Kitui are aware of climate change and its negative effects on crop production. In a bid to minimize crop loss and food insecurity, they have taken up various soil moisture conservation and soil fertility enhancement technologies.

scholarly journals Perception of Climate Change and Impact on Land Allocation and Income: Empirical Evidence from Vietnam's Delta Region

2018 ◽  
Vol 47 (2) ◽  
pp. 311-335 ◽  
Author(s):  
Ashok K. Mishra ◽  
Valerien O. Pede ◽  
Gustavo A. Barboza
Keyword(s):  
Climate Change ◽  
Crop Production ◽  
Negative Impact ◽  
Strategic Decision ◽  
Sample Survey ◽  
Land Allocation ◽  
Negative Effects ◽  
Factors Affecting ◽  
Paddy Crop ◽  
The Impact

Using a sample survey from Vietnam's M&RRD, this study examines both the factors affecting smallholder households’ perceptions of climate change, and the impact of climatic change on smallholders’ income and land allocation decisions. Results show a significant and negative impact of perception of climate change on income of smallholder households. Smallholders with perceived climate changes reduce land allocated to paddy crop. Farmers make strategic decision to counter the negative effects of climate change by increasing the amount of rented land for paddy crop production, while at the same time decreasing the amount of owned land allocated to paddy crop.

scholarly journals MAIZE YIELD SENSITIVITY TO CLIMATE VARIABILITY IN SOUTH AFRICA: APPLICATION OF THE ARDL-ECM APPROAC

2019 ◽  
Vol 54 (4) ◽  
Author(s):  
Rangarirai Roy Shoko ◽  
Abenet Belete ◽  
Petronella Chaminuka
Keyword(s):  
Climate Change ◽  
South Africa ◽  
Crop Production ◽  
Time Series Data ◽  
Maize Yield ◽  
Series Data ◽  
Climate Variables ◽  
Negative Effects ◽  
Maize Production ◽  
Distributed Lag

Climate affects crop production decisions and outcomes in agriculture. From very short-term decisions about which crops to grow, when to plant or harvest a field, to longer-term decisions about farm investments, climate can positively or negatively affect agricultural systems. Although the general effects of climate change on agriculture are broadly understood, there are limited studies that model the relationship between specific crops and climate variables. The study uses the Autoregressive Distributed Lag (ARDL) model to analyze the sensitivity of maize yield to climate variables, fertilizer use and other non-climate variables. This paper uses annual time-series data of 47 observations spanning from 1970 to 2016. The results reveal that rainfall and temperature are important maize yield drivers in South Africa. However, if excessive, they will produce negative effects. The findings of this analysis are relevant for designing long-term interventions to mitigate the effects of climate change on maize production.

scholarly journals Effect of agricultural waste as organic fertilizer on yield and soil properties of cocoa (Theobroma cacao L.)

2021 ◽  
Vol 1 (4) ◽  
pp. 1-4
Keyword(s):  
Soil Fertility ◽  
Crop Production ◽  
Agricultural Waste ◽  
Organic Fertilizer ◽  
Chemical Properties ◽  
Inorganic Fertilizer ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Negative Effects ◽  
Cocoa Pod Husk

The use of fertilizer particularly for the inorganic fertilizers has increased annually to cope the global demand of crop production. Nevertheless, inorganic fertilizer is expensive and associate with the negative effects to the environment and the soil structure. Alternatively, agricultural waste can be composted and used as organic fertilizer. Although such fertilizer has low nutrient concentration and solubility, it releases nutrients slowly which makes them available for a longer period. Moreover, this agricultural waste such as biomass and manure from plantation and livestock farms are available in abundance. Therefore, this study was conducted to determine the effects of different types of fertilizer treatments as listed; T1 – inorganic fertilizer (control), T2 – chicken manure, T3 – cow manure, T4 – empty fruit bunch and T5 – cocoa pod husk on the production of cocoa mature tree and its soil fertility. The results have shown that organic fertilizers with its consistency application has produce comparable production with inorganic fertiliser and have no differences in the soil chemical properties between the treatments. Hence, this study has clearly demonstrated that agricultural wastes act as organic fertilizers were able to increase crop production and improved the soil fertility in cocoa cultivation.

Soil Fertility Maintenance and Food Crop Production in Semi-Arid West Africa: Is Reliance on Manure a Sustainable Strategy?

1995 ◽  
Vol 24 (1) ◽  
pp. 43-47 ◽  
Author(s):  
T.O. Williams ◽  
J.M. Powell ◽  
S. Fernández-Rivera
Keyword(s):  
West Africa ◽  
Soil Fertility ◽  
Crop Production ◽  
Crop Yields ◽  
Animal Manure ◽  
Level Of Use ◽  
Term Basis ◽  
Food Crop Production ◽  
Using Data ◽  
Arid West

Animal manure is of vital importance in maintaining soil fertility in semiarid west Africa due to the low level of use of inorganic fertilizer. Using data from Niger however, it is shown that insufficient animals are available to provide the manure needed to sustain crop yields on a long-term basis. The limitations posed by animal numbers and feed availability imply that with the increasing intensity of land use in Niger and other countries In the region, manure alone will not provide the key to attaining sustainable yield levels. External Inputs in the form of inorganic fertilizers are needed. However, the gap between present fertilizer use and the required level is wide. To ensure the availability and increased use of fertilizers at the farm level, appropriate public policies are needed to ease the constraints that have inhibited the widespread use of fertilizers in semiarid west Africa.

Influence of NPK fertilization on weed flora in maize field

2014 ◽  
Vol 63 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Éva Lehoczky ◽  
M. Kamuti ◽  
N. Mazsu ◽  
J. Tamás ◽  
D. Sáringer-Kenyeres ◽  
...  
Keyword(s):  
Plant Nutrition ◽  
Crop Production ◽  
N Availability ◽  
Weed Species ◽  
Negative Effects ◽  
Production Factors ◽  
Maize Field ◽  
Weed Flora ◽  
Npk Fertilization

Plant nutrition is one of the most important intensification factors of crop production. The utilization of nutrients, however, may be modified by a number of production factors, including weed presence. Thus, the knowledge of occurring weed species, their abundance, nutrient and water uptake is extremely important to establish an appropriate basis for the evaluation of their risks or negative effects on crops. That is why investigations were carried out in a long-term fertilization experiment on the influence of different nutrient supplies (Ø, PK, NK, NPK) on weed flora in maize field.The weed surveys recorded similar diversity on the experimental area: the species of A. artemisiifolia, S. halepense and D. stramonium were dominant, but C. album and C. hybridum were also common. These species and H. annuus were the most abundant weeds.Based on the totalized and average data of all treatments, density followed the same tendency in the experimental years. It was the highest in the PK treated and untreated plots, and significantly exceeded the values of NK fertilized areas. Presumably the better N availability promoted the development of nitrophilic weeds, while the mortality of other small species increased.Winter wheat and maize forecrops had no visible influence on the diversity and the intensity of weediness. On the contrary, there were consistent differences in the density of certain weed species in accordance to the applied nutrients. A. artemisiifolia was present in the largest number in the untreated control and PK fertilized plots. The density of S. halepense and H. annuus was also significantly higher in the control areas. The number of their individuals was smaller in those plots where N containing fertilizers were used. Contrary to them, the density of D. stramonium, C. album and C. hybridum was the highest in the NPK treatments.

Analysis of Crop Yield Prediction of Kharif & Rabi Jowar Crops Using Data Mining Techniques

2017 ◽  
Vol 7 (11) ◽  
pp. 79
Author(s):  
Sujata Mulik
Keyword(s):  
Data Mining ◽  
Crop Yield ◽  
Crop Production ◽  
Climatic Factors ◽  
Crop Productivity ◽  
Yield Prediction ◽  
Data Mining Techniques ◽  
Agriculture Sector ◽  
Using Data ◽  
Rabi Crops

Agriculture sector in India is facing rigorous problem to maximize crop productivity. More than 60 percent of the crop still depends on climatic factors like rainfall, temperature, humidity. This paper discusses the use of various Data Mining applications in agriculture sector. Data Mining is used to solve various problems in agriculture sector. It can be used it to solve yield prediction.  The problem of yield prediction is a major problem that remains to be solved based on available data. Data mining techniques are the better choices for this purpose. Different Data Mining techniques are used and evaluated in agriculture for estimating the future year's crop production. In this paper we have focused on predicting crop yield productivity of kharif & Rabi Crops. 

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