Study guides, Class notes & Summaries

Certified Crop Advisor Exam Questions With 100% Correct Answers What reproductive stage is silking? - answerR1 How might weeds that emerge after the critical period affect crops? - answerProduce a significant amount of weed seed Micronutrients are ________ deficient in Iowa soils. - answerRarely Corn leaf initiation ends between what growth stages? - answerV4 - V6 The discovery of small nodules with pink to red centers on soybean roots would be a sign of: - answerProper nitrogen fixation...

International Certified Crop Adviser- Nutrient Management Terms Exam Questions With 100% Correct Answers Acid Soil - answerA soil that has a pH value less than 7.0 Aerobic - answerA condition identified by the presence of oxygen Agronomic nutrient rate - answerAmount of supplemental nutrient required by a crop for a realistic yield goal (yield potential), after all the soil, water, plant, and air credits are considered. Agronomic rates consider nutrient credits from all soil tests, legume...

Certified Crop Advisor- Soil and Water Mgt Exam Questions With 100% Correct Answers Which of the following is negatively charged? - answeranion Cations are held on the CEC by _____ charges on clay and organic matter . - answerPositive Which of the following clays contributes most to CEC if the same amount of each clay is present ? - answermontmorillonite Potassium fixation occurs when which of the following clays is present in soil ? - answerIllite If a soil has an EC of 0.6 siemens met...

International Certified Crop Adviser Exam Questions With 100% Correct Answers Soil Minerals - answerClays, carbonates, hydroxides Mineralization - answerOrganic material decomposed into nutrients in a inorganic from Immobilization - answernutrients converted into biomass become 'tied-up' and are unavailable for nutrient cycling Uptake antagonism between ions - answerTwo or more ions may compete for plant uptake by various mechanisms. One ion is said to be antagonistic with regard to the...

CCa Exam Questions With 100% Correct Answers 2024 Which of the following is NOT an essential nutrient for plants? - answerNa Which of the following plant nutrients is a cation in soils? - answerPotassium Which of the following plant nutrients is a macronutrient? - answerS Which of the following regulates stomatal openings in plants? - answerK Which of the following is a beneficial element that is important in animal nurtition? - answerSe Which of the following plant nutrient forms is mos...

Certified Crop Advisor Western Region Exam With 100% Correct Answers Size of sand and its characteristics - answer.05mm to 2.0mm, lower CEC, lower water holding capacity Size of silt - answer.002mm - .05mm Size of Clay - answerless than .002mm Define bulk density - answerthe ratio of the mass of soil to its bulk volume. expressed in g/cm3 How does bulk density differ with soil texture - answersandy soil has higher bulk density because has less overall pore space. Bulk density ranges of...

Cca International Exam Questions With 100% Correct Answers List the 17 essential nutrients and identify which are micronutrients (8) and which are macronutrients (9) - answerMacro: carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur Micro: boron, chlorine, copper, iron, manganese, molybdenum, nickel, zinc Which macronutrients are mobile in plants? Which are not? - answerMobile: nitrogen, phosphorus, potassium, magnesium Not mobile: calcium, sulfur List ...

CCA International Exam - Nutrient Management Questions With 100% Correct Answers List the 17 elements essential for plant nutrition - answerC, H, O, N, P, K, Ca, Mg, S, Cl, Zn, Fe, Mn, Cu, B, Mo, Ni List the "beneficial elements" - answerSi, Na, Co, Se List the macronutrients - answernitrogen phosphorus potassium calcium magnesium sulfur carbon hydrogen oxygen List the micronutrients - answerboron copper iron chloride manganese molybdenum zinc nickel What is the function...

Kentucky CCA Study Guide Questions and Answers 100% Solved If a tobacco field is diagnosed with manganese toxicity symptoms, the best thing a farmer can do is: - answerbe sure to correct the soil pH before planting his tobacco next year Which of the following crops would be most likely to respond to potassium applications? a) tobacco b) soybean c) corn d) alfalfa - answeralfalfa How does CEC influence plant availability of a nutrient present in the soil solution as a cation? - answerAs CE...

CCA Exam Soil and Water Management 100% Solved Benefits of Manure Application - answerAddition of OM, water holding capacity, and soil nutrients What happens to nitrogen applied through manuring? - answerIt can volatilize about 35% in a week if not incorporated Roughly how much available water in/ft is in fine sand to loam respectivly - answer1in to 2in Definition of field capacity - answeramount of moisture soil can hold against pull of gravity Definition of permanent wilting point - an...