共 5 条
[1]
Measurement of leaf color scores and its implication to nitrogen nutrition of rice plants. Takebe M,T Yoneyama. Jpn Agric Res J . 1990
[2]
Use of a chlorophyll meter to monitor nitrogen status and schedule fertigation for corn. Blackmer T M,J S Schepers. Journal of Production Agriculture . 1994
[3]
Leaf reflectance vs leaf chlorophyll and carotenoid concentration for eight crops. Thomas J R,H W Gausman. Agronomy Journal . 1977
[4]
Light reflectance compared with other nitrogen stress measurements in corn leaves. Blackmer T M,J S Schepers,G E Varvel. Agronomy Journal . 1994
[5]
Ratio analysis of reflectance spectra (RARS): An algorithm for the remote estimation of the concentrations of chlorophyll a, chlorophyll b, and carotenoids in soybean leaves. Chappelle E,M S Kim,J E McMurtrey. Remote Sensing of Environment . 1992