What does higher crop yields mean? Key Takeaways. 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.
What is the harvest index?
Harvest index (HI) is the ratio of grain to total shoot dry matter and is as a measure of reproductive efficiency. … All these factors can increase biomass accumulation, grain number and thus grain yield potential.
What 3 things increased crop yields?
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 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%. Not surprisingly, the most lucrative cash crops from a value per acre perspective are illegal in many parts of the world.
What do u mean by crop yield?
Definition. The amount of plant crop (such as cereal, grain or legume) harvested per unit area for a given time. Supplement. In agriculture, the crop yield is a measure of the grains or dry matter quantity in a particular area.
How do you calculate harvest?
Harvest index is defined as the pounds of grain divided by the total pounds of above ground biomass (stover plus grain). As a general rule, in a normal year (i.e., without weather extremes) the harvest index will be 0.50.
Which crop has highest harvesting index?
When the harvest index was ex- pressed on an energy basis, there was improvement in all the species. However, the maximum increase was in oil-seed crops, In fact, the oil-seed crops had the highest harvest index on the basis of energy content and were followed by wheat, grain legumes, triticale and barley.
How do you calculate harvest index?
The grains were separated and weighed, and then converted into grain yield (kg/hm2). HI was calculated according to the following formula: Harvest index (%) = Grain yield / Biological yield × 100.
Why do we need to improve crop yield?
2. Why Do We Need to Improve Crop Yield? The reasons we need to increase crop production include: the world’s population continues to grow, with higher demand for food, livestock (which eat the crops produced), biofuels, fiber, food by-products, and a myriad of other crop-producing things.
What factors affect crop yield?
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.
Why have crop yields increased?
There are a number of factors which are likely to have contributed to sustained yield gains: fertilizer application, irrigation, increased soil tillage, and improved farming practices.
What is the number 1 crop in the world?
1. Corn. The rundown: Corn is the most produced grain in the world.
What crop yields the most money per acre?
Bamboo is one of the most profitable crops to grow per acre. It can bring in lots of revenue, but the catch is it takes about three (3) years for the bamboo to get “established” once planted.
What is the best cash crop?
Cash Crops for Small Farm Profit
- Bamboo. Already popular in Asia, bamboo is gaining popularity around the world for its variety of uses, such as fencing material, fabric and food. …
- Specialty Mushroom. Perfect crops for beginning farmers are specialty mushrooms, such as oyster mushrooms. …
- Lavender. …
- Garlic. …
- Christmas Trees.
What is difference between yield and production?
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 yield per hectare?
Crop yield is a measurement of the amount of agricultural production harvested per unit of land area. Crop yield is the measure most often used for cereal, grain or legumes and is normally measured in bushels or pounds per acre in the U.S. (metric ton or kilogram per hectare outside the U.S.).
How do GMOS increase crop yield?
Additionally, a series of GM crops have modified to express traits like an efficient use of soil nitrogen, which directly increases agricultural yield while reducing the use of fertilizers, and the new generation of diverse drought-tolerant, heat-tolerant and salinity-tolerant crops, which will increase the final yield …
What does yield per acre mean?
Crop yield is the term for the amount of harvested production per unit of land. In the U.S., crop yield for grain and oilseed crops is typically measured in bushels per acre. Acre– unit of land used to measure cropland in the U.S. An acre is 4,840 square yards, and there are 640 acres in one square mile.
How do you calculate crop yield?
Steps are as follows:
- Select an area that is representative of the paddock. …
- Do this 5 times to get an average of the crop (A)
- Count the number of grains in at least 20 heads or pods and average (B)
- Using Table 1 determine the grain weight for the crop concerned (C)
- Yield in t/ha = (A × B × C) / 10,000.
What is maize harvest index?
The harvest index represents the proportion of plant dry biomass allocated into grains. … In our field experiments, the average values of the harvest index at maize varied between 0.20 to 0.56, more frequently between 0.3 and 0.5.
What is queen of cereals?
Corn or maize is a cereal grain that belongs to the family ‘gramineae’ and is known as the ‘Queen of Cereals’ because of its several uses. The scientific name of corn is Zea mays.
What is the harvest index of maize?
In our field experiments, the average values of the harvest index at maize varied between 0.20 to 0.56, more frequently between 0.3 and 0.5. Harvest index registered higher values under more favourable soil and climatic conditions than under less favourable conditions.
What is rice harvest index?
Introduction
| Crop | Harvest index (kg kg − 1 ) |
|---|---|
| Rice (Oryza sativa L.) | 0.17 – 0.56 |
| Wheat (Triticum aestivum L.) | 0.31 – 0.53 |
| Barley (Hordeum vulgare L.) | 0.30 – 0.62 |
| Maize (Zea mays L.) | 0.25 – 0.58 |
What is rice harvest index?
High harvest index revealed by W1V1P0 was 0.827 and the smallest by W1V3P1. Grain yield ranging between 4.49-1.60 ton ha–1 and straw about 15.39-5.33 ton ha–1 depend upon aerobic rice cultivars and water availability. More research about aerobic rice technology need to face water problem in the future.
How is cropping intensity calculated?
It refers to raising of a number of crops from the same field during one agricultural year; it can be expressed through a formula. Cropping Intensity = Gross Cropped Area/Net Sown Area x 100.
References
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