Soil Management

Which of the following is not a Macro nutrient

• Nitrogen

• Calcium

• Sulfur

• Zinc

Which of the following is not a Micro Nutrient

• Iron

• Copper

• Selenium

• Magnesium

Swayback is a deficiency disease in sheep due to the lack of which element

• Zinc

• Iron

• Cobalt

• Copper

Which of the following steps is recommended when soil sampling

• Take one soil sample from the center of the feild

• Take at least 20 samples in a W shape

• Take a sample immediately after applying fertiliser

• Include ditches, entrances in your sample

Urea and Sulfate of ammonia are examples of fertilisers that contain large amounts of

• Potassium

• Phosphorus

• Carbon

• Nitrogen

Which of the following are functions of nitrogen in plants (2)

• Component of chlorophyll which is needed for photosynthesis

• Component of the stem of the plant

• Component of the flower of the plant

• Component of amino acids which is needed to make protein

Which of the following is a sign of nitrogen deficiency in plants

• Blue colour leaves

• Purple colour leaves

• Pale or Yellow colour leaves

• No germination of seed

At a pH of below 5 and above 7.5 means that phosphorus is not available to plants. Why is this the case?

• Phosphorus is dried up

• Phosphorus is leached away from the soil

• Phosphorus forms compounds that are insoluble in water and unavailable to plants

• The soil is too acidic and the plant cant grow

Whiptail in cauliflower is caused by a deficiency of which of the following?

• Iron

• Molybdenum

• Manganese

• Boron

Which area should you avoid when taking a soil sample (3)

• Middle of the field

• Gateways

• Drinking area

• Marshland