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Influence of Stubble Treatment and Autumn Application of Nitrogen to Stubbles on the subsequent Incidence of Take‐all and Eyespot
Author(s) -
Shipton P. J.
Publication year - 1972
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1972.tb01749.x
Subject(s) - acre , agronomy , ammonium nitrate , biology , crop , nitrogen , urea , zoology , chemistry , biochemistry , organic chemistry
SUMMARY Commercial‐scale field trials on farms in North Hampshire over four seasons (1963 to 1968) showed that nitrogen applied to wheat or barley stubble after harvest in the autumn failed to reduce the incidence of take‐all and eyespot in the succeeding wheat or barley crop, or produced only minor reductions in the spring which were not maintained up to the stage of crop maturity. There were no consistent significant differences in levels of disease between rate or form of nitrogen applied as urea/ammonium nitrate spray at 0, 12, 24 or 48 units/acre (1 unit/ac × 1·25 kg/ha), ammoniacal gas liquor spray at 48 units/acre and anhydrous ammonia injected at 40 units/acre. Burning‐off stubbles with high‐output flame cultivators did not significantly reduce the incidence of either disease.