Affectivity Of Rhizobium Leguminosarum Vicieae Against Different Nitrogen Levels In Pea (Pisum Sativum)-Maize (Zea Mays) Cropping Sequence
INDIAN JOURNAL OF AGRICULTURAL SCIENCES（2008）
关键词
dinitrogen fixation, effectiveness, inoculation, nitrogen economy, residual effect, succeeding cereal crop
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