Pedro Greenjeans is thinking about making some changes in his farm. He’s conside
ID: 298600 • Letter: P
Question
Pedro Greenjeans is thinking about making some changes in his farm. He’s considering adopting farming practices that improve soil conservation. Currently he uses conventional tillage practice, applies ammonium phosphate fertilizer to his crops, and removes all plant residues from the field after harvest. Please refer to this information as necessary to answer
Q. 70-89. 70. Pedro routinely fertilizes his crops with ammonium phosphate. Which gases may be produced from application of this fertilizer?
71. Pedro is concerned that the P in the inorganic fertilizer may have a negative effect on a pond in his property. How can P affect freshwater ecosystems?
72. Which of the following sequence of processes is likely to result in gases in Q. 70?
73. The sequence in Q. 72 can also lead to leaching losses of N in the form of:
74. The microbial process leading to the leaching loss of N in Q. 73 is:
75. The reason the form N in Q. 73 is easily leached from soil is:
76. Pedro is thinking of switching to organic fertilizers to supply N and P to his crops. The organic N and P present in the organic fertilizers are ____ to plants.
77. Once applied to soil, the organic fertilizer has to be ______to make the N and P in organic forms available to plants.
78. Which forms of N and P are produced by the process in Q. 77?
79. What biotic processes can transform the form of N in Q. 78?
80. The form of P in Q. 78 can be:
81. The form of N in Q. 78 can be:
82. Which of the following describes differences in N and P cycling in soil?
83. Pedro is thinking of a crop rotation that includes soybeans to help manage N fertility. How do soybeans contribute to N levels in soil?
84. The soybeans plants will have to be ______ in order for the N in plant biomass to become available to next year’s crop.
85. _______ could be involved in the processes in Q. 84.
86. Pedro is thinking of cutting back on tilling his fields and adopting no-till farming. He would also leave crop residues in the field. In the long run, how could this affect the soil structure in his fields?
87. Pedro’s changes will likely ______ the organic matter content of his soil. 88. Water infiltration in Pedro’s fields will likely ______ in response to his changes. 89. How could Pedro’s changes affect C sequestration in his fields?
88. Water infiltration in Pedro’s fields will likely ______ in response to his changes.
89. How could Pedro’s changes affect C sequestration in his fields?
Explanation / Answer
70) Ammonium phosphate formula is (NH4)3PO4.
When used as a fertilzer it releases ammonia and nitrogen gases.
71) P is a nutrient. When it enters into freshwater ecosystems,there will be excessive plant growth in the water which reduces water quality.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.