Crop yield in biology refers to the amount of crop produced per unit of land area, commonly measured in kilograms/hectare or metric tons/hectare.
Crop yield is a key metric in agriculture to assess productivity and efficiency. Factors influencing crop yield include soil quality, climate conditions, and farming practices. Increasing crop yield is essential for food security and sustainable agriculture. Farmers utilize various techniques such as crop rotation, irrigation, fertilization, and pest control to optimize yields. Understanding and improving crop yield is crucial for meeting the demands of a growing global population and ensuring food production sustainability.
Simply put, crop yield is the amount of crop harvested per area of land. Typically, it is used in reference to corn, cereals, grains, or legumes, and it may be reported in kilograms/hectare or metric tons/hectare. Sometimes crop yield is referred to as ‘agricultural output’.
What is the major determinant of crop yield?
The primary factor influencing crop yield is temperature. Other key determinants of crop growth and development include radiation, water availability, nutrient levels, and the presence of pests and diseases. These factors collectively dictate the success of crop production, with temperature playing a crucial role in yield determination. (Van Ittersum and Rabbinge, 1997)
What is the formula for crop yield?
To calculate crop yield, count grains in at least 20 heads or pods, average the count, and determine grain weight using Table 1. Then, apply the formula: Yield in tons per hectare (t/ha) = (Number of plants (A) × Average grain count (B) × Grain weight (C)) / 10,000.
Additional Details:
1. Accurate yield estimation needs a representative sample.
2. Ensure consistency in grain weight determination for precise results.
What decreases crop yield?
Factors that decrease crop yield include radiation, temperature, water availability, nutrition, and pests and diseases. These elements can significantly impact crop growth and development. It is essential for farmers to address these factors effectively to maximize their crop yields and maintain a successful harvest.
How do farmers measure crop yield?
Crop yield for any particular crop can be calculated as a measure of crop production weight (in kg) per area of land harvested or area of land planted (in hectares).
What is an example of a crop yield?
Crop yield can also refer to the actual seed generation from the plant. For example, a grain of wheat yielding three new grains of wheat would have a crop yield of 1:3. Sometimes crop yield is referred to as “agricultural output.”
How much does manure increase crop yield?
Peak increases in yield of 13% were observed when manure was applied at 50 to 75% of crop N requirements. Attempting to substitute more than 75% of the crop N requirement with manure often produced reduced yields.
What are the three steps that help in improving crop yield?
In order to improve the crop yield, the following approaches are adopted:
- Crop Variety Improvement.
- Crop Production Management.
- Nutrient Management.
Does increasing photosynthesis increase crop yield?
These find- ings provide a very strong indication that a sustained increase in leaf photosynthesis leads to increased crop yield.
How to increase crop yield by using the factors that influence photosynthesis?
Orienting crops leaves relative to the path of the sunlight reduces weed pressure and increases crop photosynthesis. The impact of row orientation varies with latitude and the seasonal tilt of the earth’s rotation.
Is crop yield decreasing?
Rising temperatures and carbon dioxide concentrations may increase some crop yields, but the yields of major commodity crops (such as corn, rice, and oats) are expected to be lower than they would in a future without climate change.
What is the difference between crop yield and crop production?
The difference between yield and production is that yield refers per area harvest and, production is total harvest measured in tonnes per hectare.
Which of the following is not a major activity for improving crop yield?
Storage improvement is NOT a method to improve crop yields in India.
What is the difference between crop yield and productivity?
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 influences crop yield?
How much water we can save in the soil and our access to irrigation potential can dramatically impact crop yield. In our past, present, and future soil and water has to be our number one limiting factor and our greatest challenge to improve.
How to maximize crop yield using the factors that influence photosynthesis?
Orienting crops leaves relative to the path of the sunlight reduces weed pressure and increases crop photosynthesis. The impact of row orientation varies with latitude and the seasonal tilt of the earth’s rotation.
Do GMOs increase crop yield?
Some GMOs produce higher yields, but not all of them. Most GMOs can resist pests and diseases which may break down in due course due to development of resistance to GMOs in insect pests and disease organisms (pathogens). As such, the development of GMOs that resist pests and diseases is only a temporary solution.
Is increasing crop yields good?
Improvements in crop yields have been essential to feed a growing population while reducing the environmental impact of food production at the same time. Increasing crop yields can reduce the amount of land we use for agriculture.
In conclusion, crop yield in biology refers to the amount of a particular crop harvested per unit of land area. It is a crucial measure of agricultural productivity and plays a vital role in food security and sustainability. Understanding factors that affect crop yield, such as genetics, environment, and management practices, can help improve agricultural production efficiency and ensure a stable food supply for the growing global population. By optimizing crop yield through research and innovation, we can work towards a more resilient and productive agricultural sector that meets the demands of the future.