Gce Model Questions Vol1 2021 Agricultural Science Question 31

Practice objective / multiple choice question 31 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.

Gce Model Questions Vol1 2021 Agricultural Science Objective / Multiple Choice Easy Difficulty
Question 31 GCE_MODEL_QUESTIONS_VOL1 • 2021 • AGRICULTURAL_SCIENCE • objective

A farmer rotates a field with a legume crop that adds 45 kg of nitrogen per hectare to the soil. The following year the same field is planted with a cereal crop that removes 120 kg of nitrogen per hectare. What is the net nitrogen balance (in kg N ha⁻¹) after the two‑year rotation?

Answer Options

A. -105 kg N ha⁻¹
B. 75 kg N ha⁻¹
Correct Answer C. -75 kg N ha⁻¹
D. -45 kg N ha⁻¹
Correct Answer
C
Correct Option:
-75 kg N ha⁻¹

About This Question

This is Gce Model Questions Vol1 2021 Agricultural Science Question 31. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.

Difficulty level: Easy .

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