Which of the following elements is NOT a base cation?
Cobalt
Sodium
Calcium
Potassium
Magnesium - Answers Cobalt
Which of the following is considered a plant essential micronutrient?
Iodine
Antimony
Phosphorus
Arsenic
None of these choices - Answers None of these Choices
Which of the following is the BEST piece of advice to follow when considering a foliar fertilizer
application to creeping bent grass putting in mid-August?
Add several biostimulants to the tank
Try to make the foliar fertilizer application around 1 pm
Apply less than 0.4 lbs nutrients per 1000ft^2
Apply less than 0.2 lbs nutrients per 1000ft^2
Spontaneously formulate a 'Witch's brew with as many old, funky fungicides you can find -
Answers Apply less than 0.2 lbs nutrients per 1000ft^2
When managing creeping bent grass putting greens, which of the following soil chemicals
parameter would you want to exceed a lever of 10?
Soil pH
ECe (in mS/cm)
ESP (%)
, CEC (in meq/100 g soil)
none of the above - Answers CEC (in meq/100 g soil)
A good rule of thumb to follow when applying the soil lab lime recommendation to raise the soil
pH of the upper 6" of the profile in a mature, and acidic turf grass lawn is to:
broadcast lime over the top like fertilizer
invest in an acid injection system
mechanically cultivate the lawn prior to applying the lime
wait for your soil pH to raise itself
none of the above - Answers mechanically cultivate the lawn prior to applying the lime
Which of the following clay minerals typically posses the greatest CEC?
humus
kaolinite
quartz
smectite
calcite - Answers humus
Which of the following is NOT a possible fate of carbon-rich organic matter deposits to soil?
Osmotic conversion to unobtainium
oxidation to CO2
transform into humus
assimilation into microbial biomass
all are possible - Answers Osmotic conversion to unobtainium
An acidic soil with an ESP of 18%, a SAR value of 15, and an 4.8mS/cm is classified as: