Which of the following is the most likely cause for future water shortages a global Warmingb increased Agriculturec water Pollutiond Erosione urbanization?
Water pollution is answer.
How do conservation tillage practices lead to agricultural sustainability?
How do conservation tillage practices lead to agricultural sustainability? a. Conservation tillage practices reduce the amount of water required to grow crops. Conservation tillage practices naturally protect crops from insect damage, reducing the need for pesticides.
How do conservation tillage practices lead to agricultural sustainability a conservation tillage practices reduce the amount of water required to grow crops B conservation tillage practices help reduce soil erosion and maintain soil nutrient levels C conservation tillage practices?
The correct answer is B. Conservation tillage practices help the soil erosion and also maintains soil nutrient levels. Conservation tillage is termed as the tillage system which helps to conserve energy, soil, water through retention of crop residue and reduction of tillage intensity.
What are 4 benefits to the use of conservation tillage?
Environmental benefits include improved water quality; reduced nutrient losses; increased water availability; improved air quality; and improved soil quality, meaning increased organic matter and improved soil structure, porosity and tilth.
What are 2 benefits of conservation tillage?
Conservation tillage has two basic advantages for the grower: conservation of soil, water, and soil organic matter; and reduction of costly inputs while maintaining or improv- ing crop yields and profits.
What is the importance of tillage?
Tillage can result in the degradation of soil, water, and air quality. Of all farm management practices, tillage may have the greatest impact on the environment. A wide variety of tillage equipment, practices and systems are available to farmers, providing opportunities to enhance environmental performance.
What is the advantages and disadvantages of tillage?
Tillage: Advantages and Disadvantages
| Table 1. Advantages and Disadvantages of Selected Tillage Systems | ||
|---|---|---|
| Disk | Less erosion with more residue. Well adapted for well-drained soils. Good incorporation. | Little erosion control with more operations. High soil moisture loss. Destroys soil structure. Compacts wet soil. |
What is a disadvantage of conservation tillage methods?
The disadvantages of the system include dependency on herbicides for weed management, requires a no-till planter or planter modification, planting may be delayed due to wet, cool soil temperatures, and problems with different insect, disease, and weed species.
Is tillage good or bad?
However, tillage has all along been contributing negatively to soil quality. Since tillage fractures the soil, it disrupts soil structure, accelerating surface runoff and soil erosion. Splashed particles clog soil pores, effectively sealing off the soil’s surface, resulting in poor water infiltration.
What are the disadvantages of conservation?
Conservation helps to ensure we not only save species from destruction. but help preserve the environment we ourselves live in. The cons are that we have limited resources. Also it can be hard to choose where to focus our efforts.
What is conservation tillage and its advantages?
The benefits of conservation tillage are reducing soil erosion, conserving soil moisture, avoiding fluctuations of soil temperature in the arable soil depth, and reducing the costs of soil preparation. However, conservation tillage may compact surface soil horizons and may lead to poor root growth.
What are the effects of tillage?
The judicious use of tillage practices overcomes edaphic constraints, whereas inopportune tillage may cause a variety of undesirable outcomes, for example, soil structure destruction, accelerated erosion, loss of organic matter and fertility, and disruption in cycles of water, organic carbon, and plant nutrient [10].
What are the benefits of minimum tillage?
Improved soil fertility – the activities of minimum soil disturbances, improved organic matter and enhanced soil matter improved soil fertility. This results in better crops for improved productions. Better profits- all the costs saved in the farm operations lower cost of production leading to increased profits.
How does conservation tillage affect the environment?
As its name implies, conservation tillage conserves soil by reducing erosion. In the Midwest, erosion by water is the primary concern, whereas western regions of the country are more susceptible to wind erosion. Soil erosion removes the productive layer of topsoil, reducing crop yields and land value.
How can we prevent tillage erosion?
Reduced tillage practices are frequently recommended as a way to reduce soil erosion, increase soil productivity, and reduce production costs. Reduced tillage practices are also suggested as a way to save some of the energy used in field operations.
What are the environmental benefits of conserving soils?
Improved Environment: Reduced erosion. Increased water infiltration and storage. Improved air and water quality. Provides food and shelter for wildlife.
What are 3 methods of soil conservation?
List out three methods of soil conservation
- Following methods are normally adopted for conserving soil:
- Afforestation: One of the best ways to conserve soil is to increase the area under forests.
- Checking Overgrazing:
- Constructing Dams:
- Changing Agricultural Practices:
- (i) Crop Rotation:
- (ii) Strip Cropping:
- (iii) Use of Early Maturing Varieties:
Why it is important to conserve the soil?
Soil conservation is key to environmental sustainability: It helps protect natural resources and watersheds, restores habitats for plants and wildlife, improves water quality, and makes soil healthier. Soil conservation also creates economic opportunity.
What are effects of soil conservation?
Effects include land degradation, soil erosion and sterility, and a loss of biodiversity, with huge economic costs for nations where deserts are growing.
Why should we prevent soil erosion?
Soil erosion affects soil health and productivity by removing the highly fertile topsoil and exposing the remaining soil. It decreases agricultural productivity, degrades ecosystem functions and amplifies hydrogeological risk, such as landslides or floods.
What are the factors that affect soil erosion?
The rate and magnitude of soil erosion by water is controlled by the following factors:
- Rainfall and Runoff.
- Soil Erodibility.
- Slope Gradient and Length.
- Cropping and Vegetation.
- Tillage Practices.
- Sheet Erosion.
- Rill Erosion.
- Gully Erosion.
What are the impacts of soil erosion?
The soil erosion mechanisms have an effect on how much water the soil can hold, how rapidly water flows over the soil, and its movement below surface. Soil erosion adversely hinders the growth of plants, agricultural yields, quality of water, and recreation.
What are the major causes of soil erosion?
The Main Causes And Impacts Of Soil Erosion
- Deforestation for Agriculture Is One of the Top Causes of Soil Erosion.
- Soil Erosion is Also Caused by Overgrazing, Which Causes Floods too.
- Agrochemicals Cause Soil Erosion and Degradation.
- Construction and Recreational Activities.
What are the five causes of erosion?
The agents of soil erosion are the same as of other types of erosion: water, ice, wind, and gravity. Soil erosion is more likely where the ground has been disturbed by agriculture, grazing animals, logging, mining, construction, and recreational activities.
How does water cause erosion?
The sediment removed by erosion can bury plants and roads; accumulate in streams, rivers, and reservoirs; and degrade water quality. What causes water erosion? Erosion is caused by the impact of raindrops on bare soil and by the power of running water on the soil surface.
What are the 3 types of soil erosion?
There are three main types of soil erosion….Soil Erosion Types
- Mass Movement. Soil loss and movement due to the effects of gravity, including; landslips, slumps and slides.
- Water Erosion.
- Wind Erosion.