What are yields in agriculture

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  • Crop yields refer to how much grain or other crops are produced, and by extension how efficient land is used to produce food or agricultural commodities.
  • The U.S. …
  • Crop yields and farm efficiency have increased dramatically over the past decades as technology has advanced in farm automation, crop genetics, fertilizers, and pesticides.
  • The U.S. …

How to increase crop yield?

What is the best fertilizer for crops?

  • Fish emulsion and hydrolyzed liquid fish. Processing fish or fish byproducts with heat or acid treatments creates fish emulsion.
  • Bone meal.
  • Compost.
  • Manure.
  • Rock phosphate.
  • Cottonseed meal.
  • Alfalfa meal.
  • Blood meal.

How to determine crop yield?

The trade-off between higher yields and land use

  • Crop Production Index: land needed per unit of crop production. …
  • Production, yield and land use changes over time. …
  • Yields vs. …
  • Different approaches to growing food: South Asia vs. …
  • Land sparing from improvements in cereal yields. …

How do you calculate crop yield?

“A high-yielding soybean crop can remove as much as 84 pounds of potassium on a per-acre basis. Compare that to a high-yielding corn crop, which only removes about 55 pounds per acre. In the end, soybeans are still removing a substantial amount of nutrients off that field.”

Do GMO crops increase yields?

GMO Crops do not produce higher yields. GM crops are often claimed to give higher yields than naturally bred varieties. But the data do not support this claim. At best, GM crops have performed no better than their non-GM counterparts, with GM soybeans giving consistently lower yields. –Controlled field trials comparing GM and non-GM soy …

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What does yield mean agriculture?

Crop yield is a standard measurement of the amount of agricultural production harvested—yield of a crop—per unit of land area. Crop yield is the measure most often used for cereal, grain, or legumes; and typically is measured in bushels, tons, or pounds per acre in the U.S.


What does high yield mean in agriculture?

High-yield agricultural crops are those that have been bred, genetically modified, or fertilized to increase their production yields. The health and well-being of the world’s growing population are largely dependent on the ability of the agricultural industry to raise high yielding food and fiber crops.


Why is agricultural yield important?

Crop yield is the measure of crop produced per area of land. It’s an important metric to understand because it helps us understand food security and also explains why your tomatoes can cost more one year and then less the following year.


What does it mean to yield a harvest?

It can mean to produce something, such as a crop on a farm, as in: The field yielded a large pumpkin harvest. In this example, it is used with the word ‘harvest’ being used as a noun, with ‘yield’ as a verb relating to farming and crop production.


How is yield measured?

For stocks, yield is calculated as a security’s price increase plus dividends, divided by the purchase price.


What is difference between yield and production?

The difference between yield and production is that yield refers per area harvest and, production is total harvest measured in tonnes per hectare. Crop yields are the harvested production per unit of harvested area for crop products.


How can agriculture increase yield?

What Are The Ways To Increase Crop Yield?Quality Of Seeds. Agricultural productivity depends on the quality of seeds with which farmers sow their fields. … Field Productivity Zoning. … Monitoring Crops Growth. … Accurate Weather Prediction. … Regular Scouting. … Crop Protection Methods. … Soil Testing & Its Quality.


What is the yield per acre?

The size of a farm is defined as the total of (net) cultivated area and un- cultivated area. Yield per acre has been obtained by dividing the gross value of output by the gross cultivated area.


What affects crop yield?

Yield is influenced by climate and temperature, plant and water management, and soil nutrient management factors. Good genetics plus the ability to manipulate and optimize the plant’s environment generally result in the highest yields. Climate and temperature factors are critical to achieving high yields.


What is difference between yield and harvest?

The main difference between harvest and yield is that in general conversation, harvest refers to the act of gathering crops during a particular season when they are fully grown or ready to be consumed whereas yield refers to the amount of produced goods that have been gained at any given point in time.


What is yield in irrigation?

Average yield (Ya) is defined as the average (of for instance the past 5 years for irrigated and 10 years for rainfed cropping systems) yield achieved by farmers in a given region under dominant management practices (sowing date, cultivar maturity, and plant density) and soil properties.


Will yield meaning?

intransitive verb. 1 : to give way to pressure or influence : submit to urging, persuasion, or entreaty. 2 : to give up and cease resistance or contention : submit, succumb facing an enemy who would not yield yielding to temptation. 3 : to relinquish the floor of a legislative assembly.


What is yield in crop production?

Crop yields are the harvested production per unit of harvested area for crop products. In most of the cases yield data are not recorded, but are obtained by dividing the production data by the data on area harvested.


Why is agricultural yield important?

Improving productivity on farms contributes to profitability and competiveness because it allows farmers to produce more output using fewer inputs.


What is a yield in geography?

Yield: how many crops a particular field, farm, or area of land produces.


What affects the yield in agriculture?

The four most important factors that influence crop yield are soil fertility, availability of water, climate, and diseases or pests. These factors can pose a significant risk to farms when they are not monitored and managed correctly.


What is difference between yield and production?

Answer. A crop harvest is also referred to as crop yield which is a measurement of how much is produced per area. Crop produce is the amount of crops that are yielded as a whole.


What is the highest yielding crop?

The highest yielding crops are sugar cane, sugar beet, and tomatoes. Sugar cane accounts for about 80% of the world’s sugar production, while sugar beet the remaining 20%.


How is agricultural yield calculated?

The total yield is calculated from the weight multiplied by the total acreage in production. Farmer estimation: Farmers are asked for their estimation of the total crop harvested. This value is divided by how much land they planted in order to estimate yield.


What is the biofertilizer used in rice?

A type of fertilizer based on cyanobacteria (blue-green algae) was developed and has been applied extensively in rice cropland in Asia since the 1940s ( Irisarri et al., 2001). This biofertilizer still plays an important role in improving rice yield and maintaining soil quality in the long term.


What is microbial fertilizer?

The prototype of microbial fertilizer (MF) was the use of soil microorganisms to enhance agricultural yield due to the benefits of bacteria in the soil. In ancient times, the farmers in Rome found that rice production increased as long as legume plants had been planted in the rice-cropland, which was a result of the enrichment of bacteria ( Zhuang, 2003 ). In the early 1900s, some US and German farmers put the soils that had been planted with legume or alfalfa plants into some newly reclaimed croplands to enhance agricultural production ( Crews and Peoples, 2004 ). In 1838, J. B. Boussingault, a France agricultural chemist, found that N could be fixed by legume plants. He then built the first agricultural field experimental station in 1843 and analyzed relevant parameters ( Manlay et al., 2007 ). Under the conditions of sand culturing legume plants between 1886 and 1888, H. Hellriegal, a German agriculturist, demonstrated that the N in the air could be fixed as long as Rhizobium formed ( Fogarty, 1992 ). A Dutch researcher, M.W. Beijerinck successfully isolated Rhizobium in 1888, representing a breakthrough in terms of microbial fertilizers (Rodelas et al., 1999 ).


What is crop yield?

The definition for ‘ crop yield ‘ given by the FAO is ‘Harvested production per unit of harvested area for crop products. In most of the cases yield data are not recorded but obtained by dividing the production data by the data on area harvested. Data on yields of permanent crops are not as reliable as those for temporary crops either because most of the area information may correspond to planted area, as for grapes, or because of the scarcity and unreliability of the area figures reported by the countries, as for example for cocoa and coffee.’ 4


What is the trade-off between land use for agriculture and yields?

This trade-off between land use for agriculture and yields is very clearly exemplified in a comparison between cereal production in Asia and Sub-Saharan Africa. Expansion of cereal production has followed very different paths in Sub-Saharan Africa and Asia.#N#Land use for cereal production in South Asia has increased by less than 20 percent since 1961, meanwhile cereal yields have more than tripled – which meant that much more food could be produced in South Asia without an equivalent extension of the agricultural land. This is in strong contrast to Sub-Saharan Africa where the area of land used for cereal production has more than doubled since 1961 and yields have only increased by 80 percent.#N#Click to open interactive version


How much has the average cereal yield increased since 1961?

Most of our improvements in cereal production have arisen from improvements in yield. The average cereal yield has increased by 175 percent since 1961.


Which countries have seen a much larger increase in cereal yields relative to area used for production?

Most European, American (both North and Latin American), Asian and Pacific countries have seen a much larger increase in cereal yields relative to area used for production. For many, changes in the arable land have been minimal (or have declined). This is an important contrast to Africa where results are more mixed.


Why are permanent crops not as reliable as temporary crops?

Data on yields of permanent crops are not as reliable as those for temporary crops either because most of the area information may correspond to planted area, as for grapes, or because of the scarcity and unreliability of the area figures reported by the countries, as for example for cocoa and coffee.’ 4.


What is the effect of increased crop yields on agriculture?

Increased crop yields also means fewer hands are needed on farm, freeing them for industry and commerce. This, in turn, led to the formation and growth of cities, which then translated into an increased demand for foodstuffs or other agricultural products.


What is the unit of measurement of crop yield?

Measurement. The units by which the yield of a crop is usually measured today are kilograms per hectare or bushels per acre . Long-term cereal yields in the United Kingdom were some 500 kg/ha in Medieval times, jumping to 2000 kg/ha in the Industrial Revolution, and jumping again to 8000 kg/ha in the Green Revolution.


How does technological advancement affect crop yield?

Each technological advance increasing the crop yield also reduces the society’s ecological footprint . Yields are related to agricultural productivity, but are not synonymous. Agricultural productivity is measured in money produced per unit of land, but yields are measured in the weight of the crop produced per unit of land.


What is the measurement of the amount of a crop grown, or product such as wool, meat or milk produced,

Crop yield. In agriculture, the yield is a measurement of the amount of a crop grown, or product such as wool, meat or milk produced, per unit area of land. The seed ratio is another way of calculating yields .


What is seed ratio?

The seed ratio is the ratio between the investment in seed versus the yield. For example, if three grains are harvested for each grain seeded, the resulting seed ratio is 1:3, which is considered by some agronomists as the minimum required to sustain human life. One of the three seeds must be set aside for the next planting season, the remaining two either consumed by the grower, or for livestock feed. In parts of Europe the seed ratio during the 9th century was merely 1:2.5, in the Low Countries it improved to 1:14 with the introduction of the three-field system of crop rotation around the 14th century.


What was the seed ratio in the 9th century?

In parts of Europe the seed ratio during the 9th century was merely 1:2.5, in the Low Countries it improved to 1:14 with the introduction of the three-field system of crop rotation around the 14th century.


How does innovation affect farming?

Innovations, such as the use of fertilizer, the creation of better farming tools, new methods of farming and improved crop varieties, have improved yields. The higher the yield and more intensive use of the farmland, the higher the productivity and profitability of a farm; this increases the well-being of farming families.


How did crop production increase?

Until the early years of the 20th century, most of the world’s increase in crop production came either from an increase in land under cultivation or from an increase in the amount of labour used per unit of land. That generally involved a shift to crops that would yield more per unit of land and required more labour for their cultivation.


Which crops require less labour per unit of land?

Wheat, rye, and millet require less labour per unit of land and per unit of food output than do rice, potatoes, or corn (maize), but generally the latter yield more food per unit of land. Thus, as population density increased, the latter groups of crops tended to be substituted for the former.


What is the instability of farm prices?

The instability of farm prices is accompanied by instability of farm income. While gross income from agriculture generally does not vary as much as do individual farm prices, net income may vary more than prices. In modern agriculture, costs tend to be relatively stable; the farmer is unable to compensate for a drop in prices by reducing his payments for machinery, fertilizer, or labour.


Why is the cost of farming so stable?

In modern agriculture, costs tend to be relatively stable; the farmer is unable to compensate for a drop in prices by reducing his payments for machinery, fertilizer, or labour. The incomes of farm workers are generally below those of other workers. There are two major reasons for that inequity.


How is the relationship between land, population, and farm production determined?

In traditional agriculture, where methods of production have changed little over a long period of time, production is largely determined by the quality and quantity of land available and the number of people working on the land.


How much of the world’s land is arable?

Land, output, and yields. Only a small fraction of the world’s land area—about one-tenth—may be considered arable, if arable land is defined as land planted to crops. Less than one-fourth of the world’s land area is in permanent meadows and pastures. The remainder is either in forests or is not being used for agricultural purposes.


Where is the most arable land per capita?

There are great differences in the amount of arable land per person in the various regions of the world. The greatest amount of arable land per capita is in Oceania ; the least is in China. No direct relationship exists between the amount of arable land per capita and the level of income.


How do pesticides affect crop yield?

Pesticides are used worldwide and increase crop yield on average by 30% as well as improving crop quality. Modern organic (i.e., carbon-containing) pesticides have been used widely since the late 1940s, and so there is over 50 years of experience of their behavior in the environment and their impact upon it.


What is the biologically active herbicide used for annual grass?

One such biologically active herbicide is isoproturon used for annual grass (e.g., barley and wheat) protection.


Why is the long season hybrid not an advantage?

Yields for the long season hybrid were not different from the midseason suggesting that the longer period of grainfill for the long season hybrid was not an advantage because of decreasing day length and cooler temperatures. There was a slight yield advantage to the wider spacing under water stress.


Do GM seeds increase crop yields?

26.2 The benefits and costs to the farmer. There is considerable data to suggest that GM seeds increase crop yields. However, acting against these gains, as we shall see later, prices should fall from the increase in aggregate supply and this will reduce farmers’ income.

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Overview

  • To estimate crop yield, producers usually count the amount of a given crop harvested in a sample area. Then the harvested crop is weighed, and the crop yield of the entire field is extrapolated from the sample. For example, if a wheat producer counted 30 heads per foot squared, and eac…

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Measurement


Seed ratio


Law of physiological relations

In agriculture, the yield is a measurement of the amount of a crop grown, or product such as wool, meat or milk produced, per unit area of land. The seed ratio is another way of calculating yields.
Innovations, such as the use of fertilizer, the creation of better farming tools, new methods of farming and improved crop varieties, have improved yields. The higher the yield and more intensive use of the farmland, the higher the productivity and profitability of a farm; this increases the wel…


See also

The units by which the yield of a crop is usually measured today are kilograms per hectare or bushels per acre.
Long-term cereal yields in the United Kingdom were some 500 kg/ha in Medieval times, jumping to 2000 kg/ha in the Industrial Revolution, and jumping again to 8000 kg/ha in the Green Revolution. Each technological advance increasing the crop yield also reduces the society’s ecological footp…

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