TY - JOUR
T1 - Rice production in Madagascar
T2 - Regression analysis with particular reference to pest control
AU - Baumgärtner, J.
AU - Regev, U.
AU - Rahalivavololona, N.
AU - Graf, B.
AU - Zahner, Ph
AU - Delucchi, V.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - A multiple regression model was used to explain the variability in yield of transplanted rice in Madagascar, and to estimate the effects of various production factors, including mechanical and chemical pest control. The production function indicates that regional differences are important, as is quality of irrigation, and also indicates optimum planting densities at appropriate dates of transplanting. Weed control measures and insecticides contribute positively to yield only when applied in fields with high yield potential but negatively elsewhere. The estimates of the production function point out directions towards optimal rice production strategies, but have limitations when used for tactical threshold decisions in pest control. The validity of the model holds only for the current technology, it does not consider long-term effects, and it requires the a priori estimation of the yield potential.
AB - A multiple regression model was used to explain the variability in yield of transplanted rice in Madagascar, and to estimate the effects of various production factors, including mechanical and chemical pest control. The production function indicates that regional differences are important, as is quality of irrigation, and also indicates optimum planting densities at appropriate dates of transplanting. Weed control measures and insecticides contribute positively to yield only when applied in fields with high yield potential but negatively elsewhere. The estimates of the production function point out directions towards optimal rice production strategies, but have limitations when used for tactical threshold decisions in pest control. The validity of the model holds only for the current technology, it does not consider long-term effects, and it requires the a priori estimation of the yield potential.
UR - http://www.scopus.com/inward/record.url?scp=0025628248&partnerID=8YFLogxK
U2 - 10.1016/0167-8809(90)90181-C
DO - 10.1016/0167-8809(90)90181-C
M3 - Article
AN - SCOPUS:0025628248
SN - 0167-8809
VL - 30
SP - 37
EP - 47
JO - Agriculture, Ecosystems and Environment
JF - Agriculture, Ecosystems and Environment
IS - 1-2
ER -
