RELATIONSHIP OF NITRATE ACCUMULATION TO YIELD RESPONSE OF WHEAT IN SOME SASKATCHEWAN SOILS | Zendy

F. D. Cook | Zendy; F. G. Warder | Zendy; J. L. Doughty | Zendy

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RELATIONSHIP OF NITRATE ACCUMULATION TO YIELD RESPONSE OF WHEAT IN SOME SASKATCHEWAN SOILS

Author(s) -

F. D. Cook,

F. G. Warder,

J. L. Doughty

Publication year - 1957

Publication title -

canadian journal of soil science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.592

H-Index - 67

eISSN - 1918-1841

pISSN - 0008-4271

DOI - 10.4141/cjss57-013

Subject(s) - nitrate , soil water , agronomy , nitrogen , greenhouse , yield (engineering) , environmental science , correlation coefficient , chemistry , soil science , mathematics , biology , materials science , organic chemistry , metallurgy , statistics

The capacity of Saskatchewan soils to accumulate nitrate, as determined by a laboratory procedure, was investigated as a method for evaluating the response of wheat to nitrogenous fertilizers. The correlation coefficient between the field yield ratios (which are a measure of the response to nitrogen) and nitrate accumulation for 31 stubble fields was 0.846** and for 30 fallow-soils was 0.830**. Greenhouse experiments with soil samples from 31 stubble fields showed a high correlation (0.874**) between nitrate accumulation and nitrogen uptake by wheat plants during a 30-day growth period.It is considered that a significant increase from the application of nitrogenous fertilizers can be expected when the nitrate accumulation value is below 50 p.p.m. N in soil from stubble fields or 40 p.p.m. N in fallowed soils.

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