State the colony shape, margin, and elevation of the nutrient agar colony exposed in : A. Nutrient agar in Soil B. Nutrient agar in Water C. Nutrient agar in Plant leaves D. Nutrient agar in Air
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- Which of the following statements is NOT as description of soil? A. Varying nutritional content. B. Phototropic microbes are found only on the top few centimeters. C. A homogenous layer of organic and inorganic material. D. The area around the plant soil usually has the highest microbial populations.An extremely acid soil generally limits the availability of many nutrients in the soil. True or FalseName the following as soil forming processes: a. Soil erosion b. Formation of humus c. Weathering of sand d. Nutrients absorbed by plant roots e. deposition of organic matter f. Leaching of water along with dissolved ions
- Cation Exchange capacity is: Group of answer choices a. The amount of cations that can be held by a given mass of soil. b. Affected by soil texture c. Affected by the amount of organic matter/Humus in a soil. d. Affected by the amount of clay in a given soil e) All of the aboveIndicate which of the following observations can be made when observing growth on nutrient agar. Check all that apply. please look at the attached imageMicronutrient deficiency is, or may be:Group of answer choices A.) pH dependent B.) affected by excess macro and secondary nutrients. C.) Is not as typical in acidic soil environments as in alkaline soil environments. D.) All of the above
- Soil pH affects availability of nutrients for root absorption. The following statements are true except* a. Low pH results in an increase in Aluminum toxicity. b. Low pH results to unavailability of major nutrient elements. c. Toxic metals are more available in acidic soil. d. Low pH results in slow activity of soil-inhabiting microorganisms.Explain why preparation of stock solutions for macronutrients, micronutrients and vitamins required in preparing a plant tissue culture medium is recommendedWhich element is responsible for causing soil salinity?At what concentration does the soil become saline?
- Camellia and azalea are plants that produce yellow leaves, which is considered an undesirable outcome, when they are grown on alkaline soil. Which of the statements below support the fact about camellia and azalea stated above? a. Loam soil is not advisable to be used in growing camellia and azalea because of its acidity. b. Camellia and azalea should not be planted in chalk soil. c. Camellia and azalea produced yellow leaves because they are planted in acidic soil. d. Camellia and azalea require chalk soil to counter the effect of the alkaline soil used.Which of the following strategies is most helpful for protecting the soil from water erosion? a Alley cropping with tilled soil b Planting crops in contour strips c Rotating crops between different fields d Using shelterbelts to separate crop fields%OM pH EC Ca2+ Mg2+ K+ Na+ Al3+ H+ % dS/m cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil 2.7% 7.6 4.5 19 13 10 3 1 4 Is this soil affected? If so, what type? - saline - sodic - not salt affected - saline-sodic