Crop Yield Response to Deficit Irrigation : Report of an FAO/IAEA Co-ordinated Research Program by Using Nuclear Techniques

C. Kirda

ISBN 10: 9401059969 / ISBN 13: 9789401059961

Edité par Springer Netherlands, Springer, 2012

A propos de cet article

Druck auf Anfrage Neuware - Printed after ordering - The increasing global demand for food and other agricultural products calls for urgent measures to increase water use efficiency which is, with plant nutrient availability, one of the two main limiting factors in crop production. Although only 20% of all cultivated land in the world is under irrigation, it provides 35-40% of all crop production. Because of higher yields under irrigated agriculture, investments for irrigation are usually a top priority. However, it has become a matter of serious concern in recent years that, despite their high co~ts, the performance of many irrigation projects has fallen short of expectations as a result of inadequate water management at both farm and system levels. Crop production increase has been well below the project targets. The greatest potential for increasing food and other agricultural products is the more efficient use of naturally occurring precipitation in conjunction with improved soil fertility management. Until recently, regardless of the amounts and distribution of rainfall, irrigation practices were used almost exclusively to supplement the amount of soil water stored in the root zone to such an extent that the available soil water never allowed the crop to suffer from water stress throughout the growing season. As a result, even today farmers still tend to over-irrigate to ensure a bountiful amount of water stored.

N° de réf. du vendeur 9789401059961

Détails bibliographiques

• Titre: Crop Yield Response to Deficit Irrigation : Report of an FAO/IAEA Co-ordinated Research Program by Using Nuclear Techniques
• Éditeur: Springer Netherlands, Springer
• Date de parution: 2012
• Langue: anglais
• ISBN à 10 chiffres: 9401059969
• ISBN à 13 chiffres: 9789401059961
• Reliure: Taschenbuch
• État de l'article: Neu
• Dimensions: 240 L x 160 H x 16 P (en millimètres) 240 millimètres de largeur par 160 millimètres de hauteur par 16 millimètres de profondeur
• Poids: 446 grammes

A propos de ce titre

Synopsis

The increasing global demand for food and other agricultural products calls for urgent measures to increase water use efficiency which is, with plant nutrient availability, one of the two main limiting factors in crop production. Although only 20% of all cultivated land in the world is under irrigation, it provides 35-40% of all crop production. Because of higher yields under irrigated agriculture, investments for irrigation are usually a top priority. However, it has become a matter of serious concern in recent years that, despite their high co~ts, the performance of many irrigation projects has fallen short of expectations as a result of inadequate water management at both farm and system levels. Crop production increase has been well below the project targets. The greatest potential for increasing food and other agricultural products is the more efficient use of naturally occurring precipitation in conjunction with improved soil fertility management. Until recently, regardless of the amounts and distribution of rainfall, irrigation practices were used almost exclusively to supplement the amount of soil water stored in the root zone to such an extent that the available soil water never allowed the crop to suffer from water stress throughout the growing season. As a result, even today farmers still tend to over-irrigate to ensure a bountiful amount of water stored.