Download or read book Revue Agronomique Canadien written by and published by . This book was released on 1921 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Agriculture written by and published by . This book was released on 1927 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comptes Rendus de L Association Internationale de la Science Du Sol written by International Society of Soil Science and published by . This book was released on 1927 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions written by and published by . This book was released on 1966 with total page 1344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Basic Technics in Ecological Farming Techniques de Base en Agriculture Biologique Grunds tzliche Verfahren der kologischen Landwirtschaft Le Maintien de la Fertilit des Sols The Maintenance of Soil Fertility Die Erhaltung der Bodenfruchtbarkeit written by Stuart Hill and published by Birkhäuser. This book was released on 2013-12-14 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Crop Protection written by P. Graffin and published by CRC Press. This book was released on 2020-09-24 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the constraints on biological control ranging from the difficulty of convincing growers that they should infest their crops artificially to the effect of cultural techniques.
Download or read book Rapports Biologie du sol written by and published by . This book was released on 1956 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by Québec (Province). Department of Agriculture and published by . This book was released on 1917 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Utilization of Secondary and Trace Elements in Agriculture written by UN Economic Commission for Europe and published by Springer Science & Business Media. This book was released on 1987-06-30 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a Symposium held in Geneva, January 12-16, 1987
Download or read book Bulletin de l Institut Pasteur written by Institut Pasteur (Paris, France) and published by . This book was released on 1917 with total page 834 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Catalogue of Scientific Literature written by and published by . This book was released on 1911 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alleviating Soil Fertility Constraints to Increased Crop Production in West Africa written by A. Uzo Mokwunye and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical Africa escaped from the glaciers that covered the temperate parts of the world during the Ice Age. The legacy is that most of the parent materials of the soils of tropical Africa are old, highly weathered and devoid of bases and phosphate-bearing minerals. Traditional farming systems which were relatively stable and sustainable relied on long fallow periods after one to two years of cropping to maintain the productive capacity of the soils. In recent times and especially in densely populated areas, a sizeable class of 'landless' farmers have begun to cultivate marginal lands or to invade the 'forest reserves' thereby exacerbating the problems of land and environ mental degradation. of soil fertility that will facilitate the production of adequate quantities of the principle Maintaining a level staples has become a major challenge to agricultural scientists in tropical Africa. To increase the nutrient supplying power of soils requires the inputs of fertilizers. These can be organic or inorganic. The efficiency with which these externally supplied inputs can increase agricultural production and reduce soil and environmental deterioration is dependent on the ability of scientists to determine the right types and quantities of the products to apply to each soil, crop and cropping system as well as the ability of farmers to acquire requisite farm manage ment skills.
Download or read book Cover Crops in West Africa written by International Development Research Centre (Canada) and published by IDRC. This book was released on 1998 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover Crops in West Africa Contributing to Sustainable Agriculture
Download or read book Bulletin written by Institut national genevois and published by . This book was released on 1889 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book RECHERCHES SUR L INFLUENCE QUE LE PRIX DES GRAINS written by JOHANN HEINRICH VON THUNEN and published by . This book was released on 1851 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of Agricultural Intelligence and Plant Diseases of the International Institute of Agriculture written by and published by . This book was released on 1911 with total page 1680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
