TURF 435 EXAM 1 QUESTIONS AND ANSWERS
Every plant essential nutrient is required for a plant to successfully complete its life
cycle - Answer -True
The law of minimum implies surplus of one essential nutrient reduces the need for other
essential nutrients, under optimum conditions - Answer -False
Silicon (Si) is an essential nutrient that maximizes turf grass photosynthetic efficiency -
Answer -False
facilitated diffusion of nutrients into the symplasts requires plant energy - Answer -False
All plant essential nutrients are mobile within turf grass plants - Answer -False
Most plant available nutrient forms are incapable of entering cells via membrane fusion -
Answer -True
A soil with a pHw of 7 contains 100 times more active acidity than a soil with pHw of 5 -
Answer -False
Turfgrass benefits from bioogcical transport of nitrogen by mycorrhizal fungi - Answer -
False
A soil with a ESP exceeding 15% is classified as saline - Answer -False
All other things equal, low CEC soils require more frequent fertilization than high CEC
soils - Answer -True
According to the US salinity lab, all calcareous soils are classified as sodic, if the sum of
their SAR and %ESP either equals or exceeds 27 - Answer -False
Applying bio stimulants that contain soluble sugar elevates the carbohydrate statusif
intensivley managed turfgrass - Answer -False
One of the most important treatments of saline soil is a massive leaching event using a
high quality irrigation water (water with low salt content) - Answer -True
The net electrical charge of soil is positive, similar to that of cations - Answer -False
When planning to neutralize all the exchangable acidity in a soil, a soil with pH 5 will
always require a greater lime application (per area) than a soil with a pH of 6.2 -
Answer -False
Every plant essential nutrient is required for a plant to successfully complete its life
cycle - Answer -True
The law of minimum implies surplus of one essential nutrient reduces the need for other
essential nutrients, under optimum conditions - Answer -False
Silicon (Si) is an essential nutrient that maximizes turf grass photosynthetic efficiency -
Answer -False
facilitated diffusion of nutrients into the symplasts requires plant energy - Answer -False
All plant essential nutrients are mobile within turf grass plants - Answer -False
Most plant available nutrient forms are incapable of entering cells via membrane fusion -
Answer -True
A soil with a pHw of 7 contains 100 times more active acidity than a soil with pHw of 5 -
Answer -False
Turfgrass benefits from bioogcical transport of nitrogen by mycorrhizal fungi - Answer -
False
A soil with a ESP exceeding 15% is classified as saline - Answer -False
All other things equal, low CEC soils require more frequent fertilization than high CEC
soils - Answer -True
According to the US salinity lab, all calcareous soils are classified as sodic, if the sum of
their SAR and %ESP either equals or exceeds 27 - Answer -False
Applying bio stimulants that contain soluble sugar elevates the carbohydrate statusif
intensivley managed turfgrass - Answer -False
One of the most important treatments of saline soil is a massive leaching event using a
high quality irrigation water (water with low salt content) - Answer -True
The net electrical charge of soil is positive, similar to that of cations - Answer -False
When planning to neutralize all the exchangable acidity in a soil, a soil with pH 5 will
always require a greater lime application (per area) than a soil with a pH of 6.2 -
Answer -False
