Question

What is the reason for reduced in the
plant growth?

A- excessive exposure to sunlight
B- excessive exposure to wind
C- excessive exposure to water pollution
D- excessive exposure to air pollution

Answer 1

Reduced crop growth may be caused by reduction of the length of the growing period, low temperature, limited supply from the soil of water, oxygen, and nutrients to the root system, and a limited activity of the root system.

Answer 2

Answer:

Concept:

Crop growth rate depends upon its radiation-use efficiency, which is the amount of intercepted photosynthetic active radiation and the efficiency of the crop to convert intercepted photosynthetic active radiation to aboveground biomass.

Find:

What is the reason for reduced in the

plant growth?

A- excessive exposure to sunlight

B- excessive exposure to wind

C- excessive exposure to water pollution

D- excessive exposure to air pollution

Given:

What is the reason for reduced in the

plant growth?

A- excessive exposure to sunlight

B- excessive exposure to wind

C- excessive exposure to water pollution

D- excessive exposure to air pollution

Explanation:

Crop growth is less than potential when the uptake of water, oxygen, or nutrients is less than the demand of the crop. Potential crop growth is determined considering the prevailing weather conditions. Reduced crop growth may be caused by reduction of the length of the growing period, low temperature, limited supply from the soil of water, oxygen, and nutrients to the root system, and a limited activity of the root system. Soil water plays a central role in these limiting factors, and effects of soil compaction on crop growth and biological functioning should be modeled in relation to water. However, up to now no model exists that includes all aspects, such as limitations of root growth, the role of macropores, reduced availability of nutrients (e.g., loss of nitrogen by denitrification), and effects of reduced biological activity. The existing models in general underestimate the impact of compaction on crop growth.

A- excessive exposure to sunlight is not correct answer

B- excessive exposure to wind is not correct answer

C- excessive exposure to water pollution is not correct answer

D- excessive exposure to air pollution is correct answer.

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