共 10 条
[9]
Correlation of leaf chlorophyll readings and stem nitrate concentrations in peppermint[J] . M. P. Westcott,J. M. Wraith.Communications in Soil Science and Plant Analysis . 1995 (9-10)
[10]
Using a chlorophyll meter to predict nitrogen fertilizer needs of winter wheat[J] . R. H. Fox,W. P. Piekielek,K. M. Macneal.Communications in Soil Science and Plant Analysis . 1994 (3-4)