|
Titre :
|
Management system for sustainable crop production under reduced drainage conditions
|
|
Auteurs :
|
H. Manguerra ;
L. Garcia ;
AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS SAINT JOSEPH USA ;
Annual international meeting, Phoenix, USA, 15 July 1996 (1996)
|
|
Type de document :
|
article/chapitre/communication
|
|
Editeur :
|
St Joseph, USA : ASAE, 1996
|
|
Format :
|
13 p.
|
|
Note générale :
|
Paper n° 962017
|
|
Langues:
|
= Anglais
|
|
Catégories :
|
DRAINAGE
|
|
Mots-clés:
|
VALLEE DE SAN JOAQUIM
;
CALIFORNIE
;
SALINITE DU SOL
;
DRAINAGE SOUTERRAIN
;
IRRIGATION
;
PRATIQUE AGRICOLE
|
|
Résumé :
|
A new management system that introduces the concepts of drainage and no-drainage cycles is presented and applied to a hypothetical farm representative of the field conditions in the San Joaquim Valley of California over eight growing seasons. Its objective is to reduce subsurface drainage while maintaining an acceptable salt balance in the crop rootzone and aquifer. The no-drainage cycle is an extended period that may span over several growing seasons with no drainage releases allowed from tile drains. The drainage cycle is a short period during the off season in which drains are opened to relieve excessive water table and salinity buildups and restore the suitability of the soil for growing crops.
|
