Soil & crop productivity:
Govinda Rajan, Salem Venkatappa.
Soil & crop productivity: a handbook for the use of workers in agricultural extension, vocational agriculture and farmers in India [by] S. V. Govinda Rajan [and] H. G. Gopala Rao. - New York,bAsia Pub. House [c1971] - vii, 313 p. illus., maps (part fold.) 23 cm.
Includes bibliographical references.
0210271000
Soils--India.
Soil science.
S599.6.I5 / G69 1971
Soil & crop productivity: a handbook for the use of workers in agricultural extension, vocational agriculture and farmers in India [by] S. V. Govinda Rajan [and] H. G. Gopala Rao. - New York,bAsia Pub. House [c1971] - vii, 313 p. illus., maps (part fold.) 23 cm.
Includes bibliographical references.
0210271000
Soils--India.
Soil science.
S599.6.I5 / G69 1971