Seyed Hamid Ahmadi

5 Questions 24 Answers 0 Followers

Questions related from Seyed Hamid Ahmadi

Spatial and temporal discrimination of soil, Oak tree, and cereal crop in MODIS products?

Does anyone know or has experiences of how to discriminate soil, Oak tree, and residues of harvested rainfed cereals-wheat (cultivated in the open areas between Oak trees) in a mixed dryland...

26 December 2019 821 1 View

Unusual crop coefficient (Kc or Kcb) of specific field crops in arid and semi arid areas?

Dear friends, In the literature and FAO56, the single crop coefficient (Kc) or dual crop coefficient (Kcb) is reported for many field crops. However, we know that crop coefficient (Kc or Kcb) is...

05 June 2019 2,775 6 View

AquaCrop model and the ways/approaches to improve its accuracy in simulating yield and biomass under different irrigation managements?

I have been using the AquaCrop model since its introduction with version 3.1. I have recently modeled some potato cultivars subject to deficit and full irrigation in a dry and hot climate in south...

11 April 2018 3,963 5 View

Canopy cover and leaf area index relationships for potato?

Hi We have simulated the CC of potatoes using the AquaCrop model in a semi-arid region. We have also measured leaf are index (LAI) in different days during the season; but we did not measure CC in...

04 November 2017 1,463 3 View

Root growth rate of barley in the Hydrus model

I am going to model the root growth of barley with time to define the rooting depth at specific time t. I use the classical Verhulst-Pearl logistic growth function (see attached for detailed...

07 August 2017 9,528 1 View