Weltzien v (12 risultati)

Paperback. Condizione: Brand New. 175 pages. German language. 8.19x5.35x0.47 inches. In Stock.

Paperback. Condizione: New. This specially curated collection features four reviews of current and key research on supporting cereal production in sub-Saharan Africa.The first chapter reviews how research and development can support smallholder wheat farmers through improving access to resources and services. The chapter considers current obstacles faced by smallholder farmers, including biophysical limitations such as climatic issues, as well as socio-economic limitations such as land availability.The second chapter assesses the importance of increasing the adoption rate of improved maize technologies within smallholder farming households across Africa. The chapter discusses the economic and institutional barriers inhibiting adoption, as well as farmer attitudes to innovation.The third chapter describes the effect of poor soil fertility, drought and weeds on maize yields in West Africa. The chapter considers strategies for mitigating these constraints, including nutrient management using fertilizers, weed management and resistant varieties of maize.The final chapter discusses phosphorus scarcity in areas of West Africa and details the need to improve sorghum breeding to enhance the crop's tolerance to low-phosphorus soil conditions.…

Paperback. Condizione: New. This specially curated collection features four reviews of current and key research on supporting cereal production in sub-Saharan Africa.The first chapter reviews how research and development can support smallholder wheat farmers through improving access to resources and services. The chapter considers current obstacles faced by smallholder farmers, including biophysical limitations such as climatic issues, as well as socio-economic limitations such as land availability.The second chapter assesses the importance of increasing the adoption rate of improved maize technologies within smallholder farming households across Africa. The chapter discusses the economic and institutional barriers inhibiting adoption, as well as farmer attitudes to innovation.The third chapter describes the effect of poor soil fertility, drought and weeds on maize yields in West Africa. The chapter considers strategies for mitigating these constraints, including nutrient management using fertilizers, weed management and resistant varieties of maize.The final chapter discusses phosphorus scarcity in areas of West Africa and details the need to improve sorghum breeding to enhance the crop's tolerance to low-phosphorus soil conditions.…

Paperback. Condizione: New. This specially curated collection features four reviews of current and key research on supporting cereal production in sub-Saharan Africa.The first chapter reviews how research and development can support smallholder wheat farmers through improving access to resources and services. The chapter considers current obstacles faced by smallholder farmers, including biophysical limitations such as climatic issues, as well as socio-economic limitations such as land availability.The second chapter assesses the importance of increasing the adoption rate of improved maize technologies within smallholder farming households across Africa. The chapter discusses the economic and institutional barriers inhibiting adoption, as well as farmer attitudes to innovation.The third chapter describes the effect of poor soil fertility, drought and weeds on maize yields in West Africa. The chapter considers strategies for mitigating these constraints, including nutrient management using fertilizers, weed management and resistant varieties of maize.The final chapter discusses phosphorus scarcity in areas of West Africa and details the need to improve sorghum breeding to enhance the crop's tolerance to low-phosphorus soil conditions.…

Paperback. Condizione: New. This specially curated collection features four reviews of current and key research on supporting cereal production in sub-Saharan Africa.The first chapter reviews how research and development can support smallholder wheat farmers through improving access to resources and services. The chapter considers current obstacles faced by smallholder farmers, including biophysical limitations such as climatic issues, as well as socio-economic limitations such as land availability.The second chapter assesses the importance of increasing the adoption rate of improved maize technologies within smallholder farming households across Africa. The chapter discusses the economic and institutional barriers inhibiting adoption, as well as farmer attitudes to innovation.The third chapter describes the effect of poor soil fertility, drought and weeds on maize yields in West Africa. The chapter considers strategies for mitigating these constraints, including nutrient management using fertilizers, weed management and resistant varieties of maize.The final chapter discusses phosphorus scarcity in areas of West Africa and details the need to improve sorghum breeding to enhance the crop's tolerance to low-phosphorus soil conditions.…

8° Broschiert. Condizione: Befriedigend. 200 ohne Schutzumschlag deutliche Lesespuren an Einband und Rücken Eintrag im Vorsatz Einband berieben Ecken Block knickspurig 123506 Sprache: Deutsch Gewicht in Gramm: 300.

56pp Rústica Lucha contra el mildiu de la papa, en el Weser, Ems y Suiza, Rheinland-Pafalz, Insecticidas para la primera aspersión prefloral y la aplicación de fosfatos oleosos para el segundo tratamiento prefloral, Las plagas en guisantes y frijoles, etc. Ilustrado y con láminas en color Fecha desconocida.…

Sprache: Deutsch Mit zahlreichen Abbildungen. 324 Seiten. 4; Illustrierter Pappband. Schöner Zustand..

VII (1), 292 Seiten mit 344 Textabbildungen und 17 doppelblatt-großen (1 ausklappbaren) Tafeln, 4 Blätter mit Verlagshinweisen, Titeldruck in Rot und Schwarz, Rotschnitt, Orig.-Halbfranzband mit Lederecken und Marmor-Bezugspapier, Rücken-Goldprägung, 4°. Kommentar: *2.Auflage. - Druck von Bär & Hermann in Leipzig. - Jaeger: HDA 100. - Kanten minimal berieben, Besitzvermerk auf Vortitelblatt 'Stadtbauamt Cöpenick'; sonst gutes Exemplar. …

Condizione: New. Print on Demand pp. 100.

Condizione: New. Print on Demand pp. 100.

Condizione: New. PRINT ON DEMAND pp. 100.