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Recovery of Differentially Placed NO3‐N in a Silt Loam Soil by Five Crops 1
Author(s) -
Dancer W.S.,
Peterson L.A.
Publication year - 1969
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1969.00021962006100060019x
Subject(s) - phaseolus , loam , agronomy , subsoil , plough , soil water , biology , environmental science , ecology
Placement of NO 3 ‐N at soils depths of 8, 23, 38, 53, and 69 cm was accomplished by an injection method with minimum disturbance to plant roots and to the soil profile. Utilization of the differentially placed NO 3 ‐N by five crops for two cropping seasons indicated that these crops varied in their ability to recover the NO 3 ‐N. Lima beans ( Phaseolus lunatus L. ) and green beans ( Phaseolus vulgaris L. ) obtained most of their N from the plow layer; while corn ( Zea mays L. ), tobacco ( Nicotiana tabacum L. ), and red beets ( Beta vulgaris L. ) recovered NO 3 ‐N equally well from either the plow layer or the subsoil.