Abstract
In FATIMA project, a pilot site in Czechia was established to demonstrate how precision agriculture may serve for optimizing crop yields as well as for protection of water quality, since the pilot is located in Czech largest drinking water reservoir catchment. The pilot site Dehtáře is situated in the south-west Bohemo-Moravian Highland. The site contains tile drainage and is of very heterogeneous soil conditions; from shallow, light and stony Haplic Cambisols to heavy Haplic Gleysols, with profoundly different water regimes. For the field trial (spring barley in 2016), crop yield potential was determined from crop statuses as captured by satellite images) eight years back, assessed by Enhanced Vegetation Index. Based on this, as well as on a detailed soil survey and repeated soil sampling, variable fertilizer application zones (70 – 120%) were delineated and mineral fertilizers distributed accordingly with GPS operated spreader three times from late April to late May. The rest of the site was fertilized uniformly. Soil water regime (soil moisture, soil water potential) was monitored continuously on eight spots and real-time broadcasted by wireless sensor network to WEB GIS interface via SensLog solution, adopted from FOODIE project. In the same spots, soil water was sampled by gravitational soil lysimeters. Precise harvest showed a general agreement with the delineated application zones and yield potential, however, some ambiguities were revealed, most probably due to changeable soil water regime, as documented by the sensors, as well as due to variable soil chemical properties (low soil pH). Nevertheless, precisely applied fertilizer doses in the application zones brought about 10% higher crop yields with simultaneous better N crop efficiency. Soil water quality samples confirmed that heterogeneous doses of fertilizer in correctly delineated zones is a promising approach for improvement of groundwater quality especially in shallow soils with low water and nutrient retention ability
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 3
Claim · model-written summary
Harvest results generally agreed with mapped application zones and yield potential, with ambiguities.
- Taxon
- spring barley
.jpg?width=60)
Hordeum vulgaree1 - Outcome
- general agreemente0
- Setting
- application zonese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Precise harvest showed a general agreement with the delineated application zones and yield potential, however, some ambiguities were revealed”
e1“spring barley in 2016”
Claim · model-written summary
Precisely applied fertilizer doses yielded about 10% more crop.
- Taxon
- spring barleyHordeum vulgaree2
- Treatment
- precisely applied fertilizer dosese0
- Outcome
- crop yieldse0
- Direction
- highere0
- Value
- about 10%e0
- Comparator
- fertilized uniformlye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“precisely applied fertilizer doses in the application zones brought about 10% higher crop yields”
e1“The rest of the site was fertilized uniformly”
e2“spring barley in 2016”
Claim · model-written summary
Precisely applied fertilizer improved crop nitrogen efficiency.
- Taxon
- spring barleyHordeum vulgaree2
- Treatment
- precisely applied fertilizer dosese0
- Outcome
- N crop efficiencye0
- Direction
- bettere0
- Comparator
- fertilized uniformlye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“precisely applied fertilizer doses in the application zones brought about 10% higher crop yields with simultaneous better N crop efficiency”
e1“The rest of the site was fertilized uniformly”
e2“spring barley in 2016”
The same questions in other papers
fertilization · yield · Hordeum vulgare (barley)Positive and negative results
472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative
- no effect
- negative
- negative
546 papers more in this group
See all 550 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.