Abstract
Two years field experiment on strawberry plants (cv. Sweet Charlie) in Qalyubia
Governorate, Egypt was carried out to study the effect of different growing conditions
(organic and conventional) and the effect of some colors of plastic mulch such as clear,
black, and silver on the quantitative and qualitative characteristics of the strawberry
plantations using hyper spectral remotely sensed data. As the first step, spectral
reflectance pattern for the different treatments (fertilization and colors of plastic mulch)
was identified through in situ spectral measurements. It was found that silver plastic
mulch recorded higher values with all observed vegetative and fruit traits, as compared
with an organic strawberry growing systems without plastic mulch. Spectral reflectance
parameters in form of vegetation indices (VIs) were examined as yield estimators and
their correlation with leaf area index (LAI) was observed. Generated models with
accuracy assessment were explained and the optimal vegetation index to estimate yield
under each treatment was identified. Generally, it was found that fertilization has more
effect on spectral characteristics than plastic mulch. Spectral vegetation indices (VIs)
showed higher accuracy than LAI as yield estimators. (Spectral – yield) models showed
the same trend with adequate correlation coefficient (r2) exceeded (0.7) except the
treatment of black plastic mulch conventional system that showed (r2) less than (0.6)
with two yield estimators. All generated models with an accuracy of each model are
explained in the following sections.
Hassan A. Hassan, Sahar S.Taha, Mohamed A. Aboelghar, Noha A. Morsy. (2018) Comparative the impact of organic and conventional strawberry cultivation on growth and productivity using remote sensing techniques under Egypt climate conditions, Asian Journal of Agriculture and Biology, Volume 6, Issue 2.
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