Question Summary to Accompany "soil Fertility And Permanent Agriculture,"
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To quickly assess the difficulty of the text, read a short excerpt:
Discuss the variation due to soils and crops in the agri- cultural value of a ton of manure.
127. Discuss the Pennsylvania experiments with reference to the maintenance of soil nitrogen.
12 QUESTION SUMMARY 128. In permanent agriculture should the apparent increase from the return of plant food needed to maintain initial produc- tivity have any place in the computed profits ?
CHAPTER XXI 129. Discuss (i) the common effects of a good rotation in comparison with no rotation or with a poor rotatio...n previously practiced ; and (2) the probable relation of crop yields during the second or third rotation period in comparison with the first and with the subsequent periods.
130. Describe the Ohio experiments with various fertilizers at Wooster and Strongsville.
131. Summarize the results of the Ohio experiments with special reference to the need and effect of nitrogen, phosphorus, and potassium.
132. State the return per dollar invested in phosphorus when applied in addition to nitrogen and potassium in the five-year rotation at Wooster and Strongsville, and suggest a practical method of utilizing this knowledge.
What to read after Question Summary to Accompany "soil Fertility And Permanent Agriculture,"?
You can find similar books in the "Read Also" column, or choose other free books by Hopkins Cyril George to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Discuss the variation due to soils and crops in the agri- cultural value of a ton of manure.
127. Discuss the Pennsylvania experiments with reference to the maintenance of soil nitrogen.
12 QUESTION SUMMARY 128. In permanent agriculture should the apparent increase from the return of plant food needed to maintain initial produc- tivity have any place in the computed profits ?
CHAPTER XXI 129. Discuss (i) the common effects of a good rotation in comparison with no rotation or with a poor rotatio...n previously practiced ; and (2) the probable relation of crop yields during the second or third rotation period in comparison with the first and with the subsequent periods.
130. Describe the Ohio experiments with various fertilizers at Wooster and Strongsville.
131. Summarize the results of the Ohio experiments with special reference to the need and effect of nitrogen, phosphorus, and potassium.
132. State the return per dollar invested in phosphorus when applied in addition to nitrogen and potassium in the five-year rotation at Wooster and Strongsville, and suggest a practical method of utilizing this knowledge.
What to read after Question Summary to Accompany "soil Fertility And Permanent Agriculture,"?
You can find similar books in the "Read Also" column, or choose other free books by Hopkins Cyril George to read onlineMoreLess
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