Agricultural Compendium: For Rural Development in the Tropics and Subtropics focuses on the development of rural resources in the tropics and subtropics, as well as climate, water control, and animal production. The book first offers information on climate and soil and land classification. Topics include phenomena relevant to agricultural meteorology, classification of climate, parent materials of soils, soil fertility and description, land evaluation, and systems of soil classification. The text then takes a look at geodesy, as well as aerial photography, instruments and accessories, measuring methods, and calculation of surfaces. The publication elaborates on water control and land improvement, including surface water and groundwater hydrology, drainage, irrigation, land clearing and leveling, reclamation of saline and alkali soils, and soil improvement. The text then examines agriculture, animal production, fisheries, and farm economics. The manuscript is highly recommended for agriculturists and readers interested in the development of rural resources in the tropics and subtropics.

Ilaco handbook

Like its predecessors, this third revised edition of the Agricultural Compendium is packed with a wealth of statistical and general information about almost every aspect of agriculture in the tropics and subtropics. "Anyone in tropical rural development, whether in a technical capacity or as an economist/planner making use of technical results, would both save themselves time and increase their understanding and efficiency through possession of this compendium. It is not only a reference volume but potentially a major contribution to mutual understanding and therefore communication between different disciplines." commented Soil Survey and Land Evaluation after the publication of an earlier edition. Numerous sections (e.g. Chapter 7, Part B - Fisheries) and even complete chapters (e.g. Chapter 3, Geodosy; Chapter 10, Sociology) have been rewritten for the present edition. A number of new sections have also been added (e.g. in Chapter 3, a section on remote sensing techniques). Furthermore, in view of the now common use of scientific pocket calculators and personal computers, a number of graphs have been replaced by the original formulae.

Disease in the absence of infectious pathogens. Genetic abnormalities. Adverse environment. Nutrient imbalance. Disease in the presence of infectious pathogens. Fungi. Viruses. Mycoplasmas. Insect toxins. Nematodes. Aphids. Seed potato certification.

This color diagnostic guidebook is a thorough, authoritative, and practical reference for anyone who needs to diagnose and manage disease problems in brassica crops destined for vegetable markets, seeds, oil, and condiments. Fifty-nine international disease experts contributed to the coverage of more than a dozen brassica crops: Cabbage, Cauliflower, Broccoli, Brussels Sprouts, Kohlrabi, Greens, Asian Mustard Greens, Chinese Broccoli (Chinese Kale), Chinese Cabbage, Horseradish, Radish, Turnip, Rutabaga, Oilseed Rape (Canola, Rapeseed), and Culinary or Condiment Mustards. The book covers diseases caused by fungi, bacteria, mollicutes, viruses, and nematodes, as well as noninfectious damage to brassica crops such as herbicide injury, nutrient deficiencies, postharvest disorders, genetic abnormalities, and environmental damage. Plant pathologist-reviewed color photographs provide diagnostic guidance, and current approaches to disease management are provided at the end of each section.