Frequent question: How does climate change affect maize production?

Climate change may affect the production of maize (corn) and wheat as early as 2030 under a high greenhouse gas emissions scenario, according to a new NASA study published in the journal, Nature Food. Maize crop yields are projected to decline 24%, while wheat could potentially see growth of about 17%.

How does climate affect maize production?

Maize yields may decline due to climatic-induced changes in temperature and rainfall. … During the growing season, temperatures in the far future could increase from the reference temperature of 24 °C by up to 3 to 5 °C for RCP 4.5 and RCP 8.5 respectively.

How does climate change affect grain production?

Climate change may actually benefit some plants by lengthening growing seasons and increasing carbon dioxide. Yet other effects of a warmer world, such as more pests, droughts, and flooding, will be less benign. Under the HadGEM2 model, corn farmers will see crops decline by nearly 16 percent. …

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What affects maize production?

Temperature, precipitation and soil moisture, as well as frequency of heat waves and droughts, are significantly important to maize production.

How does climate change affect agricultural production?

Negative impacts of global warming include reduced crop quantity and quality due to the reduced growth period following high levels of temperature rise; reduced sugar content, bad coloration, and reduced storage stability in fruits; increase of weeds, blights, and harmful insects in agricultural crops; reduced land …

Which climate is suitable for maize?

It is a crop of semi-arid climate and is used both as food and fodder. A temperature of 21°C- 27°C and 50-100cm rainfall is suitable for its cultivation. Alternate spells of rains and sunny weather are ideal for maize.

What are the causes of low maize production?

Input and management differences likely to be major contributors to the low grain yield of late planted maize were: 1) delayed application of basal fertilizer (by around six days, three leaves later) at a reduced rate (around 20 kg ha N, 15 kg ha P only); 2) topdress N fertilizer was applied at just 60% of the rate …

How does climate change affect agriculture in Nigeria?

Nigeria is still practicing rain fed agriculture which renders her vulnerable to the adverse effects of climate change. Extreme climatic events such as flooding, extreme heat, and drought has led to soil degradation which results in low crop yields.

How does climate change affect agriculture in India?

Impact of climate change on Indian agriculture was studied under National Innovations in Climate Resilient Agriculture (NICRA). Rainfed rice yields in India are projected to reduce marginally (<2.5%) in 2050 and 2080 and irrigated rice yields by 7% in 2050 and 10% in 2080 scenarios.

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What is the relationship between agriculture and climate change?

Agriculture affects climate through emissions of greenhouse gases (GHGs) such as carbon dioxide, methane and nitrous oxide. These emissions come directly from use of fossil fuels, tillage practices, fertilized agricultural soils and livestock manure in large proportion.

How does air pollution influence the production of maize?

Previous studies have shown that air pollution has an effect on maize production and can also influence yield. … The research also indicated that new technology and techniques make it possible for farmers to maximize maize yield and still, year by year, increase the maize production on their farms.

What are the factors affecting the supply of maize in Nigeria?

Based on the estimated demand and supply model, the factors that affected maize demand include retail price of maize, retail price of sorghum, and per capita income. Maize demand was found to be inelastic with estimated short and long-run elasticities of 0.15 and 0.28 respectively.

What is maize production?

Maize (Zea mays L.) is the most important grain crop in South Africa and is produced throughout the country under diverse environments. … Half of the production consists of white maize, for human food consumption. Maize needs 450 to 600 mm of water per season, which is mainly acquired from the soil moisture reserves.

How does climate change affect food production?

Changes in temperature, moisture, carbon dioxide, insect pests, plant diseases, and weeds associated with global warming are projected to reduce food production in North America. The extent of alterations in crop yields will depend on each crop and its particular environmental requirements.

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How does climate change affect plants?

Climate change causes warmer summer temperatures and inconsistent precipitation patterns. These environmental alterations affect the flowering periods of plants globally. As the global temperature increases, plants will flower earlier in the season. … As precipitation decreases, flowers may bloom later in the season.