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Final Report on the Activities During a Consultancy Visit to IAPAR.

W. B. Hoogmoed

出版	GTZ, 1982
URL	http://books.google.com.hk/books?id=3O3WZwEACAAJ&hl=&source=gbs_api

註釋

Agriculture, soils and climate in Parana; The chiselplows and other implements used; Experiments in dry soil in Sertaneja; The main experiment in Londrina; The main experiment in Vila Velha; Weed control by chiselplows; Some additional experiments with chiselplows; Use of the moldboard plow; Conclusions and recommendations.