international symposium on soil fertility evaluation

India) International Symposium on Soil Fertility Evaluation (1971 New Delhi · Indian Society of Soil Science Indian Agricultural Research Institute

1117 sayfa · 1971

Soils / Soil fertility

International Symposium on Soil Fertility Evaluation, Delhi, 1971 · [Copies available from the Honorary Secretary, Indian Society of Soil Science]

Sayfa sayısı yok · 1972

Congresses / Soil fertility

International Symposium on Soil Fertility Evaluation Delhi 1971. · Yayınevi bilinmiyor

112 sayfa · 1971

Agriculture / Congresses / Physical geography / Research / Soil fertility