10 Questions
What is the ideal pH range for rhizobia microbes?
5.5-8.5
How do heat, ventilation, and humidity factors affect the plant growth process?
They help in stabilizing the formation of root nodules
What is the role of molybdenum in the stabilization process?
It increases the efficiency of atmospheric N2 fixation
How does the C:N ratio inside the plant affect the efficiency of nitrogen fixation?
The higher the C:N ratio, the higher the efficiency of fixation
What effect do some viruses have on rhizobia microbes?
They decompose the microbes, reducing their numbers and the number of root nodules formed
Which of the following factors reduces the efficiency of nitrogen fixation?
The presence of mineral nitrogen in the soil
How does the presence of ammonia and nitrates affect nitrogen fixation?
Reduces the amount supplied to the nitrogen-fixing microbe
What effect does the presence of mineral nitrogen have on the number of nodes formed on the plant?
Leads to a decrease in the number of nodes formed
What happens to the percentage of ammonia and nitrates in the plant sap as a result of their presence in the soil?
Increases significantly
How does the consumption of carbohydrates in the plant affect nitrogen fixation?
Reduces efficiency in fixation
This quiz explores the factors that influence the process of atmospheric nitrogen fixation. It covers the impact of mineral nitrogen in the soil, the presence of nodules, and other influential factors.
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