This topic contains a solution. Click here to go to the answer

Author Question: Marshall owns a 5-hectare wheat cropland. In 1973, his total crop yield was 19 tons. After using N ... (Read 93 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556

Question 1

Increases in nutrient concentration above the critical range indicate that plant is absorbing nutrients above that needed for maximum yield. Which of the following terms defines this phenomenon?
◦ critical range absorption
◦ luxury consumption
◦ limiting factor consumption
◦ seeding rate

Question 2

Marshall owns a 5-hectare wheat cropland. In 1973, his total crop yield was 19 tons. After using N fertilizers for the next ten years, the total crop yield doubled. However, in spite of increasing the N fertilizer use, the total crop yield declined to 26 tons between 1983 and 2000. Which of the following would have led to the decrease in crop yield over the years?
◦ increase in nutrient use efficiency of wheat
◦ increase in fertilizer use faster than wheat yield
◦ increase in wheat yield faster than fertilizer use
◦ decrease in the quantity of applied nutrient in the soil


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Jkov05 on Sep 3, 2020

InfiniteSteez

  • Sr. Member
  • ****
  • Posts: 340
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 64% of students answer this correctly




Jkov05

  • Member
  • Posts: 556
Reply 2 on: Sep 3, 2020
Excellent


Joy Chen

  • Member
  • Posts: 354
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

For a complete list of videos, visit our video library