Soils And Crop Growth
Gbogbo ọrọ náà
Scratch the surface of a field and you find one of the most valuable resources on Earth: soil. It is far more than dirt. A handful holds mineral grains, decaying leaves, water, air and millions of living organisms, all working together to feed the plants that feed us. Get the soil right and crops thrive; get it wrong and even the best seed and fertiliser will fail.
In this lesson you will learn what soil is actually made of, why a loam soil is prized by growers, and how weather and the seasons set the pace of crop growth through photosynthesis. By the end you should be able to explain why one field yields a heavy harvest while a neighbouring one struggles, using the language an examiner expects.
Ebumnobi
- 2.1.1 Describe the composition of soils, limited to: (a) mineral particles: sand, silt and clay (b) organic content: living organisms (plants, animals, fungi and bacteria) and organic matter from decomposition (c) gases (d) water. Knowledge of percentage composition of soils is not required.
- 2.1.3 Explain why loam soils are a good medium for crop growth, limited to: (a) ideal combination of mineral particles and pore spaces (b) retains moisture (c) contains organic content and inorganic ions (d) allows excess water to drain (e) easy to cultivate.
- 2.1.4 Define weather as the day-to-day conditions of the atmosphere in a location.
- 2.1.5 State that some areas of the world experience wet seasons and dry seasons that impact crop growth.
- 2.1.6 Describe and interpret conditions suitable for the optimum rate of photosynthesis and crop growth, limited to: (a) length of growing season (b) optimum weather conditions (c) daylight hours.
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Soils And Crop Growth. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which group of particles is the smallest and packs together most tightly in soil? A. Sand B. Silt C. Clay D. Gravel Answer: C
- Which of these is NOT one of the main components of a fertile soil? A. Mineral particles B. Plastic C. Water D. Air Answer: B
- Why is a loam soil considered the best medium for crop growth? A. It is made only of clay B. It drains so fast that it never holds water C. It balances water retention, drainage, air spaces and nutrients D. It contains no organic matter Answer: C
- Weather is best defined as: A. The average atmospheric conditions over many years B. The day-to-day conditions of the atmosphere in a location C. The amount of soil in a field D. The number of daylight hours in a year Answer: B
- Which change would be expected to increase the rate of photosynthesis and crop growth? A. Shorter growing season B. Fewer daylight hours C. More daylight hours within the optimum temperature range D. Permanent waterlogging of the soil Answer: C
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
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Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Soils And Crop Growth? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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