Soil Types, Composition, Texture And Temperature
Bayani Gaba-gaba
Pick up a handful of soil and you are holding a mixture: mineral grains of different sizes, dark humus, water, air and a teeming population of living things. The balance of these parts decides everything that matters to a farmer, from how much water the soil holds to how easily roots push through it and how warm it is in spring. Two fields side by side can grow very different crops simply because one is sandy and the other is clay.
In this lesson you will learn to describe a soil profile, sort soils by the size of their particles into sand, silt and clay, and recognise the prized crumb structure that humus helps to build. You will compare sandy, loam and clay soils, list the constituents that make up any soil, and see why soil temperature can make or break a young seedling.
Manufura
- (a) describe soil profile in terms of topsoil, subsoil and underlying materials.
- (b) describe soil texture in terms of different sizes of soil particles, sand, silt and clay.
- (c) understand soil structure, including the importance of forming and maintaining a good crumb structure, the effects of humus and maintenance of organic matter in the soil, oxidation of organic matter and the loss of soil structure causing capping and soil pans.
- (d) describe different soil types (sandy soils, loam soils and clay soils) and their properties, including water-holding capacity and drainage.
- (e) outline soil constituents in terms of mineral matter, organic matter, air, water (free or gravitational water, capillary and hygroscopic water) and living organisms (bacteria, nematodes, fungi and earthworms).
- (f) understand the influence of soil temperature on the rate of plant growth, the danger of excessive heat to young seedlings and the danger of frost to some crops, and the methods of reducing the effect of extreme temperatures by mulching of seedbeds and shading of transplanted seedlings.
Darasin Sauti
Saurari wannan darasi a cikin manhaja
Taswirar tunani
An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.
Bude taswirar tunani a cikin manhaja
Katunan tunawa
Gwaji mai sauri kan abin da ake jarraba a wannan batu.
Yi atisayen wadannan katuna a cikin manhaja
Takardar Darasi
Cikakken Bayanin Darasi Yana Kan Manhajar Green Bridge
Sami manhajar Green Bridge CBT a wayarka ko kwamfutarka domin cikakken laburaren IGCSE: takardun jarrabawar baya, tsarin kimantawa, taswirar tunani, katunan karatu da darussan sauti.
Nazarin Darasi
Barka da kammala darasi akan Soil Types, Composition, Texture And Temperature. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which soil particle is the largest? A. Clay B. Silt C. Sand D. Humus Answer: C
- Clay particles have a size of: A. More than 2.0 mm B. 0.05 to 2.0 mm C. 0.002 to 0.05 mm D. Less than 0.002 mm Answer: D
- Which soil type generally has the best balance of drainage and water-holding for most crops? A. Pure sand B. Loam C. Pure clay D. Gravel Answer: B
- The water held in the small pores of the soil and available to plant roots is: A. Gravitational water B. Capillary water C. Hygroscopic water D. Free water Answer: B
- A hard crust formed when heavy rain seals the surface of bare soil is called: A. A soil pan B. Capping C. A crumb D. Humus Answer: B
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
The Soil
Describe how soils are formed
"Biology: The Soil" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/biology/pages/31-2-the-soil. Access for free at https://openstax.org/books/biology/pages/1-introduction
Wasu ƙungiyoyi ne suka wallafa su ƙarƙashin lasisin buɗe, kuma muna ambaton su yadda suka nema. Hanyoyin suna buɗe shafukansu.
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Soil Types, Composition, Texture And Temperature? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
Sauke Manhajar Daga Google Playstore
Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
