Abstract
Aims This study aimed to evaluate the impact of subsurface drip fertigation (SDF) on soil moisture content, potato growth, and tuber yield in loam soils, and compare these results with conventional surface drip fertigation (CF). The focus was on determining whether SDF could improve water use efficiency and yield quality, particularly in water-scarce regions. Methods The experiment was conducted during the 2022 spring growing season in Xunyang, Ankang, Shaanxi Province, China. A randomized complete block design (RCBD) was used with three treatments: subsurface drip fertigation (SDF), conventional surface drip fertigation ( CF ), and a no-fertilization control (NF), with four replications per treatment. Soil moisture content at a 20 cm depth was monitored, and plant growth parameters such as plant height, stem diameter, leaf color index, and chlorophyll fluorescence index were measured during the flowering and harvest stages. Tuber yield characteristics, including tuber diameter, number of tubers per plant, total yield, and marketable yield, were also assessed. Important findings The results indicated that subsurface drip fertigation significantly improved soil moisture content, with up to 45.5% higher moisture retention compared to conventional fertigation, particularly in the early stages of fertilization. This improved moisture availability led to enhanced plant growth and tuber development. Tuber diameter increased by 6.9 mm, and the number of tubers per plant increased by 18.1% under SDF. Marketable tuber yield was approximately 10% higher in the SDF treatment compared to CF. However, the study found that soil texture plays a critical role in the effectiveness of SDF, and further research is needed to explore its application in other soil types.
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Claims 6
Claim · model-written summary
Subsurface drip fertigation significantly raised soil moisture retention by up to 45.5% relative to conventional fertigation, particularly early in fertilization.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- subsurface drip fertigatione0
- Outcome
- soil moisture contente0
- Direction
- highere0
- Value
- 45.5%e0
- Qualifier
- early stages of fertilizatione0
- Comparator
- conventional fertigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“subsurface drip fertigation significantly improved soil moisture content, with up to 45.5% higher moisture retention compared to conventional fertigation, particularly in the early stages of fertilization”
Claim · model-written summary
Improved moisture availability under subsurface drip fertigation enhanced potato plant growth and tuber development.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- subsurface drip fertigation (SDF)e1
- Outcome
- plant growth and tuber developmente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“This improved moisture availability led to enhanced plant growth and tuber development”
e1“three treatments: subsurface drip fertigation (SDF)”
Claim · model-written summary
Potato tuber diameter increased by 6.9 mm under subsurface drip fertigation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- SDFe0
- Outcome
- Tuber diametere0
- Direction
- increasede0
- Value
- 6.9 mme0
- Comparator
- conventional surface drip fertigation (CF)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“Tuber diameter increased by 6.9 mm, and the number of tubers per plant increased by 18.1% under SDF”
e1“three treatments: subsurface drip fertigation (SDF)”
e2“compare these results with conventional surface drip fertigation (CF)”
Claim · model-written summary
The number of potato tubers per plant increased by 18.1% under subsurface drip fertigation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- SDFe0
- Outcome
- number of tubers per plante0
- Direction
- increasede0
- Value
- 18.1%e0
- Comparator
- conventional surface drip fertigation (CF)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“the number of tubers per plant increased by 18.1% under SDF”
e1“compare these results with conventional surface drip fertigation (CF)”
Claim · model-written summary
Marketable potato tuber yield was approximately 10% higher with SDF than with CF.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- SDF treatmente0
- Outcome
- Marketable tuber yielde0
- Direction
- highere0
- Value
- 10%e0
- Qualifier
- approximatelye0
- Comparator
- CFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“Marketable tuber yield was approximately 10% higher in the SDF treatment compared to CF”
Claim · model-written summary
The authors concluded that soil texture is critical to the effectiveness of subsurface drip fertigation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- SDFe0
- Outcome
- effectiveness of SDFe0
- Qualifier
- soil texture plays a critical rolee0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato”
e0“soil texture plays a critical role in the effectiveness of SDF”
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