The three main factors are the exchange rate, supply and demand fundamentals and trade. Using the 2017/2018 marketing season as the form of measure, we can see that price movements were mainly reacting to these three factors.
What factors could influence supply of maize?
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 are the factors that influence crop production?
The four most important factors that influence crop yield are soil fertility, availability of water, climate, and diseases or pests.
Why is maize production important in South Africa?
Maize is the most important grain crop in South Africa, being both the major feed grain and the staple food for the majority of the South African population. … This is because maize also serves as a raw material for manufactured products such as paper, paint, textiles, medicine and food.
What is needed for maize production?
The most suitable soil for maize is one with a good effective depth, favourable morphological properties, good internal drainage, an optimal moisture regime, sufficient and balanced quantities of plant nutrients and chemical properties that are favourable specifically for maize production.
How does rain and floods affect the production of maize in South Africa?
Excessive rainfall in some areas resulted in localized ponding and flooding of corn. … The oxygen supply in the soil is depleted after about 48 hours in a flooded soil. Without oxygen, the plant cannot perform critical life sustaining functions; e.g. nutrient and water uptake is impaired, root growth is inhibited, etc.
What determines the price of maize?
The main factor above all others which determines the price of maize in each season is supply and demand. Roughly 75% of maize produced in a season is consumed by our own local market. … In poorer drought years when there are lower yields the price will increase with demand.
What are the 3 factors affecting crop production?
These factors are grouped in three basic categories known as technological (agricultural practices, managerial decision, etc.), biological (diseases, insects, pests, weeds) and environmental (climatic condition, soil fertility, topography, water quality, etc.).
What are the biotic factors that affect agricultural production?
Biotic constraints to agricultural production are broadly identified as weeds (plants), pests (animals), and diseases (fungi and bacteria), and their related biological interactions (namely, competition, herbivory, and predation and parasitism), which cause reductions in physical yields or yield quality.
What factors influence yield?
Factors Influencing Yield
- Planting Date. More or less nodes. Total leaf areas (Stronger canopy) Nodulation development. …
- Soil Preparation. Compaction (Depth and width or root footprint) pH (Nutrient availability, Rhizobia bacteria population)
- Bean Selection. High-yielding product. Row width (Narrow or bushy bean)
How can maize production be increased?
Spacing, planting density and rotation with other crops help increase maize yield by minimizing disease, pest and weed incidence. Weed control is essential to ensure a good, competitive start and pest and disease control will minimize damage to root and productive leaf area.
What are the possible solutions to improving maize production in SA?
Avoiding planting in low-lying areas and on south-facing slopes while average temperatures remain low; Avoiding planting into sandy soils, as they are prone to sudden fluctuations in average temperature and moisture content; Avoiding using certain pre-emergent herbicides on plantings when soil temperatures are low.
How does air pollution influence the farming project of producing maize in South Africa?
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 is the fertilizer requirements for maize?
The standard fertilizer recommendation for maize consists of 150 kg ha−1 NPK 14–23–14 and 50 kg ha−1 urea (Dugué 2010). Composite soil samples were collected at 0–20 cm depth after plowing and before fertilizer application.
Which fertilizer is suitable for maize?
Maize in particular – the most important grain in Kenya – is a heavy nitrogen (N) feeder, with up to 100 kilograms (kg) of N per hectare required to produce good yields. Maize plants require relatively little N when small, and greater amounts of N midway through the season, particularly in the month before flowering.