Oats (Avena) is a plant of the Poaceae family. It is one of the oldest and most popular cereal plants, introduced into cultivation in the 2nd millennium BC. Oat has long been considered a useful, medicinal, and dietary plant. The crop is valued for the vitamins, fats, and high quality starch contained in its grain. Oat plant is also known for its anti-allergic properties. That is why oat is grown for the production of various types of cereals, oat flakes, flour, oatmeal, confectionery, baby and dietary food. In fodder production, oats are used in the form of whole or crushed grain, flour and bran, mainly for raising young livestock.
The genus Avena is represented by over 76 varieties, which include cultivated and wild oats. Here are the most widely used of those.
Avena sativa (Common oat)
This is the most widely grown and used type of oats. The homeland of common oats is Mongolia and the northeastern provinces of China. This variety is popular due to the large nutrients content and its ability to grow on almost any soil type, except sandy and lime lands. It is used in pharmaceutical, cosmetology, and culinary industries as a component of dietary, sports and children’s nutrition due to its high content of protein, amino acids, and high digestion rate.
Avena byzantina (Algerian or Red oat)
This type of oats is planted mostly for fodder in countries with a warm Mediterranean climate, which makes it more resistant to drought than the common oats.
Avena nuda (Naked oat)
This is a special type of oats the grains of which lack a membranous hull. Such oats do not undergo mechanical hulling, which allows for retaining high germination rate. Such oats are more energy-rich than hulled oats. Naked oat has a significantly higher protein and fat content, as well as antiviral and antibacterial substances, such as lysine and methionine.
The biggest world oats producers are Russia, Canada, Australia, and the U.S., with Russia accounting for more than 40% of the world’s oats production. That’s even despite the overall decline in oats production by 4.6% per year from 2007 to 2017 due to a decrease in areas allocated for sowing oats.
The leading North American producer of oats is the state of North Dakota. Other leading U.S states in oats production are South Dakota, Wisconsin, and Minnesota.
Other large world’s oats producers are Brazil, China, Argentina, Chile, Ukraine, Belarus, and Kazakhstan.
Use EOSDA Crop Monitoring in Russia, Canada, Australia, the U.S, Brazil, Argentina, Ukraine, and Kazakhstan to manage your oats field.
Best climate for growing oats
Oats prefer temperate climates. Its seeds begin to germinate at a temperature of 2-3 °C. During germination and tillering, cool weather (15-18 °C) is preferable. Seedlings also tolerate short-term spring frosts of 8 – 9 °C.
Due to their rapidly developing root system, the crop suffers less from spring droughts than spring wheat and barley. But the plants tolerate high temperatures and summer air droughts worse than spring wheat and barley.
Oats are moisture-loving plants that prefer wet soils. The grains absorb 60% of water by their weight. The crop gives the best yields in wet years with precipitation in the first half of summer. Rainy weather in the second half of summer in the northern regions greatly prolongs the growing season, as a result of which the oats do not ripen before the frosts.
Best soil for growing oats
Oats are less demanding when it comes to soils than other spring crops, since its well-developed root system has a high assimilating ability. It develops to a depth of 120 cm and a width of up to 80 cm. In addition, it has the ability to extract nutrients from hardly soluble soil compounds.
Oats can grow on sandy loam, loamy, clayey and peat soils. It succeeds better than other grain crops on acidic (pH 5.0 – 6.0) soils and drained peatlands.
Here are the main growth stages of oats.
At this stage, the seeds take up water, swell, and begin to grow. This is the stage when oat seed is the most vulnerable to diseases.
1. Leaf development
At this stage of oats growth, the first leaf of the plant appears, penetrating the surface.
At this stage, additional stems called “tillers” appear, attached to the main stem below the ground. Tillering stage lasts until the plant stops producing leaves and changes to the reproductive form.
3. Stem elongation
This stage of oats growth is also known as “jointing” and refers to the nodes (joints) that appear above the ground at this stage.
This is the blooming stage of oats growth. The top of the panicle is first to bloom. Flowering proceeds down the outside of the panicle. Plant blooming may begin before the head fully emerges from the boot. The anthers are usually not visible.
At this stage, the grain has reached its full size and is fully developed. Drying occurs as water is lost. Length of this period is greatly affected by weather conditions.
This is the last of oats growth stages. The plant has reached full maturity and is ready for harvesting.
Land preparation for sowing oats is not very different from land preparation for planting spring wheat and barley and consists of several main stages.
At the first stage of preparing land for farming, the soil is cultivated with disc harrows to a depth of 6-8 cm to destroy the remaining weeds. The next harrowing is carried out deeper (10-12 cm) when weed rosettes appear.
After that, fall plowing is carried out to a depth of 20-22 cm or deeper if the field was very weedy. If the predecessor was corn, land preparation should include soil cultivation with heavy disc furrows in two directions, and then fall plowing at a depth of 27-30 cm. Potatoes and sugar beets allow for replacing winter plowing with light shallow soil cultivation.
In spring, harrowing and trailing are carried out to preserve moisture at the depth of seeding.
It’s better to start planting oats as early as possible and finish as soon as possible. A delay of sowing may sharply reduce yields. Early sowing is especially important in the arid conditions of the southeast with low rainfall and frequent droughts.
When to plant oats in spring
When deciding on the dates for oats planting in spring, rely on the weather. As soon as the snow has melted from the fields, it is the best time to start planting. Sowing in soil with a lot of moisture will help the seeds swell and germinate faster. Therefore, it is possible to sow at a temperature of -0 + 2 °C, and even if the frosts hit later, the crops will survive.
Use EOSDA Crop Monitoring to help you decide on the best time to start oats planting.
Before planting, it’s critical to prepare the grains. The preparation of oat grains for sowing involves the separation of seeds into the first and second grains, which differ significantly from each other in shape and size. The first grains develop into plants with good tillering and high yields. Plants growing from second grains are less productive.
Before sowing oats, its seeds have to be treated with 40% formalin 5 days before sowing. Seed treatment is carried out in dry and semi-dry methods. This contributes to the preservation of grains in spring without reducing germination. It is performed 30-60 days before sowing.
It should be noted that only seeds with a moisture content of less than 14% are subject to pre-treatment. If the moisture content is more than 17%, the seeds should be treated in a semi-dry method 2 – 3 days before sowing.
Oats are sown with row spacing of 15 cm. The seeding rate for oats is approximately 20-25 g of seeds for each square meter. On heavy soils, oats seeds planting depth is 3 cm, on cultivated soils – 2 cm, on light and dry soils – 4 – 6 cm.
On heavy soils (before emergence), light harrowing can be carried out to break up the soil crust and kill germinating weeds. The second harrowing can be carried out during the tillering period to reduce the number of weeds.
Identify productivity zones in EOSDA Crop Monitoring to distribute oats seeds across the field rationally.
The massive root system of the plant allows efficient use of soil fertility and nutrients left from the predecessor. Grain quality and yields directly depend on the timely application of organic fertilizers for the predecessor. For the formation of 1 ton of grain oats need 29-31% of nitrogen, 10-12% of phosphorus, and 32-37% of potassium. Phosphorus and potassium fertilizers are applied before the main treatment of the soil, and nitrogen fertilizers are applied before pre-sowing cultivation (50-60%). The rest of oats fertilizers are applied at the stage of plant tillering.
Oats fertilizers requirements include not only mineral but also organic fertilizers. The application of P – 40-60 kg / ha, K – 25-30 kg / ha, N – 20-30 kg / ha allows for getting a yield of 40 centners of grain per hectare.
Keep in mind that when growing oats for use in baby food production, it is crucial not to overapply pesticides and fertilizers.
Identify your oats field’s productivity zones in EOSDA Crop Monitoring to distribute fertilizers rationally.
Seedlings of this cereal do not require much care and are very easy to grow. In terms of oats water requirements, it is usually grown as a rain-fed crop. But if there is no rain, organize the supply of water to the plants and maintain the necessary soil moisture, otherwise the required volume of green mass will not grow.
Despite all this, oats is a water-loving crop and is more demanding in terms of soil moisture than barley and should be watered more often. Oats watering is carried out at the stages of plant’s tillering, booting, and at the beginning of grain filling with average rates of 450 – 550 m3 / ha. The watering of oats is necessary when the soil moisture is below 70-75%. If the weather is hot and dry, oats should be watered every 3 days.
Here are the most common pests affecting oats and oats pest control measures to protect the crop from them:
This oats pest sucks juices from the plant’s leaves and stems. Damaged leaves lose color, turn yellow, and die off. The weight of the grain is also reduced.
- Stubble plowing and fall plowing
- Early sowing
- Selection of early maturing varieties
Cereal leaf beetle
These beetles eat out the elongated holes in leaves. The larvae leave the epidermis untouched on the underside.
- Stubble plowing to a depth of 10-12 cm and early fall plowing
- Spring harrowing and presowing cultivation
The larva of this oats insect moves down the stem, feeding on its insides, causing the stem to break off eventually.
- Deep fall plowing
- Early sowing
- Early harvesting
This oats insect damages the seedlings of a plant. The larvae feed on embryonic tissues inside the lower part of a young stem until the growth of the stem stops. The signs of damage are wilting and yellowing of the central leaf. If the main stem is damaged, the plant dies or the yield is reduced by about half compared to a healthy plant.
- Optimal sowing dates
- Stubble plowing and fall plowing
The formed young beetles of this pest eat out holes in the caryopsis and come out, then repeating the development cycle.
- Preparation of storages before receiving and placing grain there
- Cleaning and disinfestation by wet or aerosol treatment
- Comprehensive examination of all objects on contamination
- Grain preparation: drying grain to a state of dry or medium dryness, destruction of broken grains
- Maximum decrease in grain temperature
- Grain spraying with contact insecticides
Use EOSDA Crop Monitoring to assess the health of your crops remotely.
Here are the most common oats diseases and the ways to protect the crop from them:
This disease manifests itself in the browning of the coleoptile, yellowing and deformation of leaves, rotting, browning and blackening of the primary and secondary roots. Plants stop growing, the grains turn brown and wrinkle, the stem rots and breaks eventually.
- Selection of relatively resistant varieties
- Crop rotation
- Stubble plowing and early fall plowing
- Application of phosphorus fertilizers
- Presowing seed treatment
The first signs of this disease are detected in the late stages of oats development – after heading or at the time of grain filling. The leaves are covered with small, scattered, bright orange pustules. The pustules may also appear on the leaf sheaths, stems and panicles. Eventually, they burst to release thousands of microscopic spores.
- Fungicides application
- Selection of resistant varieties
- Stubble plowing and early deep winter plowing
- Disinfection and pre-sowing seed treatment with microelements (molybdenum, zinc, copper, manganese, cobalt)
- Weed control
- Crop rotation
This disease destroys the spikelets of the plant, turning them into a black-olive spore mass. Only the axial parts of the spikelets and panicles are preserved. Sometimes only the lower part of the panicle is affected.
- Crop rotation
- Right sowing terms and methods
- Use of trace elements (boron, cobalt, molybdenum, copper, manganese)
- Seed treatment
This is a leaf spot disease, the development of which is facilitated by wet weather in the second half of plant development.
- Plowing of crop residues
- Application of mineral fertilizers and trace elements (manganese, boron, copper)
EOSDA Crop Monitoring can help assess the condition of your crops remotely via vegetation indices.
Optimal harvesting time is an important step in the fight against yield losses. To shorten oats harvesting time and reduce grain losses to a minimum, it is better to use both swathing and direct combining. The advantage of swathing is that harvesting can be started 5 – 6 days earlier, in the phase of wax ripeness, with a grain moisture content of 40 – 60%. At this time, the flow of plastic substances into the grain ends, but biochemical processes continue, leading to its physiological maturation. The best quality grain with a higher yield is obtained when harvesting oats in the middle of waxy ripeness. With swathing, the grain is drier (by 5 – 8%) and cleaner.
In the northern regions with an unstable climate, direct combining is a better option for oats harvesting. In this case, harvesting is carried out at the end of the full ripeness phase, which is characterised by the golden color of the straw and the panicle, the latter ripening faster than the straw. When harvesting lodged grain, the direction of movement of the machine must be chosen correctly. One-sided harvesting of very lodged crops increases labor and fuel costs, but reduces grain losses, which makes it economically justified.
Oats yields per acre highly depend on the varieties used. Disease-resistant oats types have improved lodging resistance and provide better yields, but require higher nutrient levels to reach full growing potential.
The reasons for low oats yields are:
- Planting in infertile soils
- Wrong crop rotation
- Wrong cultivation techniques
- Small areas for new and promising varieties
- Sowing seeds of low productivity
It is necessary not only to observe the cultivation technology, but also to plant varieties that are capable of forming consistently high yields with high quality grain in the specific soil and climatic conditions.
For 2020, an average oats yield per acre is around 150 – 200 bushels. But keep in mind that this is under the best growing conditions.
The production of oats is not as profitable as of the oil crops, but has great potential. That is thanks to the introduction of innovations, new pests and diseases resistant varieties, and improvement of cultivation technologies.
The main producers and sellers of oats in foreign markets in recent years are the countries of the European Union, Russia, and Canada, which makes them the main players that form the prices for oats on the world market. In 2020, the average price of oats per bushel is $2.6340.
Keep in mind that oats price is very dependent on the demand for it in different countries and the purpose it’s grown and purchased for.
Here are the factors that farmers need to consider when planning to increase oats yields:
When planting oats, use only those varieties that have proved to form high yields consistently, without decrease in grain quality.
To receive high oats yields, pay significant attention to the amount of applied nutrients. For instance, the use of nitrogen fertilizers increases oats yields, improves grain quality, and promotes the accumulation of protein in the grain.
To ensure high oats yields, it is crucial to put it in the right place in the crop rotation, depending on the purpose of growing. Permanent sowing of oats for 3 years highly reduces its yields, even despite the use of herbicides and mineral fertilizers.
Timely and high-quality tillage is one of the most important conditions for obtaining high and stable yields of oats. The implementation of all methods of tillage contributes to an increase in fertility, ensures the regulation of water, air, nutritional regimes, and creates conditions for the development of roots. The cultivation system depends on the type and properties of the soil, weather conditions, predecessor, weediness of the field, and the characteristics of oats variety.
Time of sowing and harvesting
The highest yields of oats are obtained when sowing it early. A 7-day delay in sowing reduces yield by 20% and increases the risk of grain frost damage. The right harvesting time and methods are also crucial to receive high oats yields. It should be decided depending on the crop maturity and particular climate conditions.
Use EOSDA Crop Monitoring to manage your oats field for receiving higher oats yields.