How does salinization occur apes?
Any of the following is a correct response: • Salinization can occur when irrigation water evaporates (or is used by plants), leaving the salts behind in the soils. (In arid regions), evaporation of (irrigation) water from the top layer of soil can draw water up from deeper in the soil column (via capillary action).
What is tilling What are some environmental impacts of tilling apes?
Tilling. Tilling or plowing is the process of turning up or mixing the soil. This process is often used when the soil is too compact for planting or nutrients like fertilizers need to be added. A major environmental problem caused by the agricultural practice of tilling is soil erosion.
What are the four types of irrigation apes?
There are various types of irrigation. These include spray irrigation, flood irrigation, furrow irrigation and drip irrigation.
How do you remediate soil salinization apes?
Avoid planting crops that require a large amount of water in areas prone to salinization. Avoid planting crops until the salt has been flushed from the soil. Plant vegetation/crops that remove salt from the soil (e.g., saltbush, barley, oats).
Which of the following is the most likely reason for the Salinification of soil?
Salinization occurs when dissolved salts in water tables rise to the soil surface and accumulate as water evaporates. Often rise in a water table is due to the replacement of deep-rooted vegetation, such as trees, with shallower rooted vegetation, such as grasses.
What causes soil salinization *?
What causes salinization? Salinization on the soil surface occurs where the following conditions occur together: • the presence of soluble salts, such as sulfates of sodium, These areas receive additional water from below the surface, which evaporates, and the salts are left behind on the soil surface.
How do farmers keep their soil in place Apes?
Mulching – Bare soil between growing plants is covered with a layer of organic matter such as straw, grasses, leaves and rice husks – anything readily available. Mulching also keeps the soil moist, reduces weeding, keeps the soil cool and adds organic matter.
Does tilling destroy soil structure?
Tillage can break up soil structure, speed the decomposition and loss of organic matter, increase the threat of erosion, destroy the habitat of helpful organisms and cause compaction. Each of these potential outcomes negatively impact soil quality.
Which irrigation method is most efficient?
Drip irrigation is the most water-efficient way to irrigate many different plantings. It is an ideal way to water in clay soils because the water is applied slowly, allowing the soil to absorb the water and avoid runoff.
What is the difference between salinization and desertification?
Salinisation greatly reduces soil quality and vegetation cover. Due to the destruction of the soil structure, saline and sodic soils are more easily eroded by water and wind. When land degradation occurs in arid, semi-arid and subhumid areas it is known as desertification.
What are two specific pest control approaches that are part of IPM?
IPM is used to reduce or eliminate the use of pesticides. Two approaches are: to spray crops with soap solutions and to use noise to repel pests.