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Estimating fertilizer requirements : a quantitative approach

Estimating fertilizer requirements : a quantitative approach
Paper図書
J.D. ColwellCAB Internationalc1994
Other Libraries in Japan
  • Author HeadingColwell, J. D.

Computations for studies of soil fertility and fertilizer requirements

Computations for studies of soil fertility and fertilizer requirements
Paper図書
by J.D. ColwellCommonwealth Agricultural Bureaux1978
Other Libraries in Japan
  • Author HeadingColwell, J. D. Commonwealth Agricultural Bur...

Computations for studies of soil fertility and fertilizer requirements

Computations for studies of soil fertility and fertilizer requirements
Paper図書
by J.D. ColwellCommonwealth Agricultural Bureaux1978
Other Libraries in Japan
  • Author HeadingColwell, J. D. Commonwealth Agricultural Bur...

Objectives and procedures

Objectives and procedures
Paper図書
J.D. ColwellCSIRO Division of Soils in collaboration with state departments of agriculture and the fertilizer industryc1977
Other Libraries in Japan
  • Author HeadingColwell, J. D.

National soil fertility project

National soil fertility project
Paper図書
J. D. ColwellCSIRO Division of Soils in collaboration with state departments of agriculture and the fertilizer industry
Other Libraries in Japan
  • Author HeadingColwell, J. D.

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