Neco Model Questions Vol1 2021 Agricultural Science Question 2
Practice practical question 2 from the 2021 Neco Model Questions Vol1 Agricultural Science examination. This question covers Soil moisture, Field capacity, Wilting point, Gravimetric method .
A soil sample from a cultivated field is being analysed for its moisture characteristics using the gravimetric method. The following data were obtained: - Oven‑dry weight of the soil (W_d) = 250 g - Weight of the soil after saturation and drainage (W_fc) = 420 g (field capacity condition) - Weight of the soil after drying to the permanent wilting point using a pressure plate apparatus (W_wp) = 360 g Using these data, answer the following: a) Determine the gravimetric water content at field capacity (θ_fc) and at the wilting point (θ_wp) expressed as a percentage of dry weight. b) Calculate the Available Water Holding Capacity (AWC) of the soil in % (θ_fc – θ_wp). c) Discuss two possible sources of error in this experimental procedure and suggest one improvement for each.
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This is Neco Model Questions Vol1 2021 Agricultural Science Question 2. It is one of the practical questions from the 2021 Neco Model Questions Vol1 Agricultural Science examination.
The question covers Soil moisture, Field capacity, Wilting point, Gravimetric method .
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