共 10 条
[1]
Use of a chlorophyll meter to evaluate the ni tr ogen status of dryland winter wheat. Follett R H and Follett R F. Communications in Soil Science and Plant Analysis . 1992
[2]
Chlorophyll meter readings in co rn as affected by plant spacing. Blackmer T M,Schepers J S and Vigil M F. Communications in Soil Science and Plant Analysis . 1993
[3]
Comparison of corn leaf nit rogen concentration and chlorophyll meter readings. Schepers J S,Francis D D,Vigil M and Below F E. Commum. Soil Sci. Plan t Anal . 1992
[4]
Using a chlorophyll meter to estimate specifi c leaf nitrogen of tropical maize during vegetative growth. Chapman S C and Barreto H J. Agronomy Journal . 1997
[5]
Use of a Chlorophyll meter to monitor nitro ge n status and schedule fertigation for corn. Blackmer T M and Schepers J S. Journal of Production Agriculture . 1994
[6]
Determination of wheat nitr ogen status with a hand-held chlorophyll meter: Influence of management practic es. Reeves D W,Mask P L,Wood C W and Delaney D P. Journal of Plant Nutrition . 1993
[7]
Determination of cotton ni trogen status with a hand-held chlorophyll meter. Wood C W,Tracy P W,Reeves D W and Edmisten K L. Journal of Plant Nutrition . 1992
[8]
Correlation of leaf chlorophyll readings and stem nitrate concentrations in peppermint. Westcott M P and Wraith J M. Communications in Soil Science and Plant Analysis . 1995
[9]
Using a chlorophyll meter to pred ict ni trogen fertilizer needs of winter wheat. Fox R H,Piekielek W P,Macneal K M. Communications in Soil Science and Plant Analysis . 1994
[10]
Chlorophyll meter to predict nitrogen topdress re quirment for semidwart rice. Turner F T and Jund M F. Agronomy Journal . 1991