FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The type of crops grown in a paddock is changed regularly in a planned order.
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Fast-growing crops are grown and ploughed back into the soil before they seed.
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Part of a crop not harvested for sale can be returned to the soil
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The soil is not cultivated, but seeds are sown directly into the soil.
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Detailed explanation-1: -Any parts of a crop not harvested for sale can be returned to the soil to help rebuild the organic matter levels. This type of crop residue is sometimes called stubble. Crop residue will protect the soil surface and help water infiltrate into the soil. Stubble has been worked into the soil.
Detailed explanation-2: -Stubble provides ground cover, which protects soil from wind and water erosion by slowing wind speed at the soil surface and reducing runoff. To protect soil: stubble needs to be at least partially anchored.
Detailed explanation-3: -They include fungi along with invertebrate organisms sometimes called detritivores, which include earthworms, termites, and millipedes. Fungi are important decomposers, especially in forests. Some kinds of fungi, such as mushrooms, look like plants.
Detailed explanation-4: -Decomposition is a biological process that includes the physical breakdown and biochemical transformation of complex organic molecules of dead material into simpler organic and inorganic molecules (Juma, 1998). Decomposition of organic matter is largely a biological process that occurs naturally.
Detailed explanation-5: -Reduce or Eliminate Tillage. Tillage improves the aeration of the soil and causes a flush of microbial action that speeds up the decomposition of organic matter. Reduce Erosion. Most soil organic matter is in the topsoil. Growing cover crops can help build or maintain soil organic matter.