SSSAJ Journal of Natural Resources and Life Sciences Education
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Fig. 2 Fourier-transform infrared spectra of the calcium humate fraction from the (a) dryland rice, (b) rice–soybean, (c) double-cropped prilled urea, and (d) triple-cropped optimal N fertilizer soils





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HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome