The soil nitrogen index and its calibration with crop performance to improve fertilizer efficiency on Arable soil /
Robinson, J. B. D.
The soil nitrogen index and its calibration with crop performance to improve fertilizer efficiency on Arable soil / J.B.D. Robinson. - Slough, England : Commonwealth Agricultural Bureaux, 1975. - 53 p. - Commonwealth Bureau of Soils. Special Publications; no. 1 .
0851983405
Nitrogen fertilizers.
Fertilizers.
Soil fertility.
The soil nitrogen index and its calibration with crop performance to improve fertilizer efficiency on Arable soil / J.B.D. Robinson. - Slough, England : Commonwealth Agricultural Bureaux, 1975. - 53 p. - Commonwealth Bureau of Soils. Special Publications; no. 1 .
0851983405
Nitrogen fertilizers.
Fertilizers.
Soil fertility.