A field planted to groundnut on an area of 90 x 60 m2 and spacing of about 30 x 15 cm2, calculate the plant population per hectare. 5400 plants/ha 222 222 plants/10 000ha 5400 plants/10 000ha 222 222 plants/ha

Planting population = number of plants/ area occupied = 1 plant / 0.15m2 Conversion: 1 ha = 10 000m2 = 1 plant / (0.15 / 10 000) ha = 66 667 plants per hectare this is the answer for 1.1 explain why this answer and how did they came up with such answer

Estimate the dandelion population size for a field with an area 300 m² and a mean of 2.4 dandelion plants per 1 m² quadrat.

Which piece of equipment can be used to estimate the population size of a given species in a defined area?CalculatorTransectQuadratTape measure2A student measures the number of snails in a garden by taking 10 random 1 m2 quadrat readings. If the numbers recorded are 3, 2, 1, 4, 2, 4, 5, 5, 2 and 2, what is the mean number of snails per m2 in the garden?302343A field measures 10 m by 30 m. In ten 1 m2 quadrats thrown randomly onto the field, an average of 5 flowers is counted. What is the estimated number of flowers on the whole field? 150050030001504What is a quadrat placed along a transect used to measure? The sizes of different species in a defined areaA change in species distribution along a set lineThe numbers of different species along a set lineThe estimated population of a single species in a defined area5Which of the following are abiotic factors that might affect the distribution of a species?TemperatureImmersion by waterAll of theseLight intensity

Question 14(2 marks)SavedThe grower currently uses a siphon irrigation system that has an efficiency of 65%, which according to Table 2 above is about average. Use this information and your answers to question 12 & 13 to calculate how many hectares the grower should plant. Show your answer and working out in the space below.

f 1 litre of fertiliser will treat an area of 25m2, how many litres will be neededfor a field with an area of 40 hectares