Abstract
Highlights Application of biogas slurry can significantly improve the integrated growth, yield, quality of tomatoes. Water-nitrogen coupling model was established based on multi-index evaluation system of tomatoes. The optimal application quantitative range of water and nitrogen was obtained based on the water-nitrogen coupling model. Abstract. Biogas slurry, a liquid organic fertilizer, has been widely used in agricultural production. However, the characteristics of high water content and low fertility make it always applied empirically and a scientific and reasonable application of biogas slurry is urgent needed in practical agricultural production. This study aims to explore the effects of various biogas slurry concentrations on the yield, comprehensive nutritional quality (CNQ), irrigation water use efficiency (IWUE) and partial factor productivity of nitrogen (PFPN) of tomatoes in a greenhouse. Seven treatments, including T1(BS 1:4 ; 0.8Ep), T2 (BS 1:6 ; 0.8Ep), and T3(BS 1:8 ; 0.8Ep), T4(BS 1:4 ; 0.6Ep), T5(BS 1:4 ; 1.0Ep), CK (no fertilization; 1.0Ep), CF (conventional chemical fertilization; 1.0Ep) were set up, where BS 1:4 , BS 1:6 , and BS 1:8 are the volume ratio of biogas slurry to water, 0.6, 0.8, and 1.0 were crop dish coefficients, respectively. Ep is the evaporation amount of a 20 cm standard evaporating dish. The results showed that appropriate application of biogas slurry had a positive impact on crop growth such as total dry biomass, plant height, stem diameter and finally increased the yields, in which T1 treatment was the best. The fruit yield increased with the increase of biogas slurry ratio for treatments at the same irrigation level of 0.8Ep and the maximum yield of single tomato can reach 5.174 kg. The IWUE increased with the decrease of irrigation for treatments at the same biogas slurry ratio of BS 1:4 and T4 treatment had the highest IWUE. The CNQ first increased and then decreased with the increase of biogas slurry ratio under the same irrigation level of 0.8Ep and T2 treatment obtained the highest CNQ; but the PFPN decreased with the increase of biogas slurry ratio and T3 treatment acquired the largest PFPN. Within an 80% confidence interval, when the irrigation amount was in a range of 39.233~43.134 L and the nitrogen quantities was 7.983~8.426 g, the yield, IWUE, CNQ, and PFPN can reach =80% of their maximums at the same time. Taking into account the growth, yield, fruit quality, and water and fertilizer use efficiency, T1 treatment was the best fertigation strategy for a higher production and better quality. The results can provide some help for scientific management of biogas slurry application in greenhouse. Keywords: Biogas slurry, Quality, Spatial analysis method, Tomato (Lycopersicum esculantum Mill), Yield.
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Claims 13
Claim · model-written summary
Appropriate application of biogas slurry increased total dry biomass, plant height and stem diameter of tomato.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- appropriate application of biogas slurrye1
- Outcome
- total dry biomass, plant height, stem diametere1
- Direction
- positive impacte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“appropriate application of biogas slurry had a positive impact on crop growth such as total dry biomass, plant height, stem diameter”
t0“for Tomato Growth”
Claim · model-written summary
Appropriate application of biogas slurry increased tomato yields.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- appropriate application of biogas slurrye1
- Outcome
- yieldse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“appropriate application of biogas slurry had a positive impact on crop growth such as total dry biomass, plant height, stem diameter”
e2“finally increased the yields”
t0“for Tomato Growth”
Claim · model-written summary
Treatment T1 gave the best tomato yield among the biogas slurry treatments.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- yieldse2
- Qualifier
- T1 treatment was the beste3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“in which T1 treatment was the best”
e2“finally increased the yields”
t0“for Tomato Growth”
Claim · model-written summary
Fruit yield increased with increasing biogas slurry ratio at the 0.8Ep irrigation level.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- biogas slurry ratioe1
- Outcome
- fruit yielde1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The fruit yield increased with the increase of biogas slurry ratio for treatments at the same irrigation level of 0.8Ep”
t0“for Tomato Growth”
Claim · model-written summary
The maximum single tomato yield reached 5.174 kg.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- maximum yield of single tomatoe1
- Value
- 5.174 kge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the maximum yield of single tomato can reach 5.174 kg”
t0“for Tomato Growth”
Claim · model-written summary
IWUE increased with decreasing irrigation at the same biogas slurry ratio.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- decrease of irrigatione1
- Outcome
- IWUEe1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The IWUE increased with the decrease of irrigation for treatments at the same biogas slurry ratio of BS 1:4”
t0“for Tomato Growth”
Claim · model-written summary
Treatment T4 had the highest IWUE.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- IWUEe1
- Qualifier
- T4 treatment had the highest IWUEe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“T4 treatment had the highest IWUE”
t0“for Tomato Growth”
Claim · model-written summary
CNQ first increased and then decreased with increasing biogas slurry ratio.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- biogas slurry ratioe1
- Outcome
- CNQe1
- Direction
- first increased and then decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The CNQ first increased and then decreased with the increase of biogas slurry ratio under the same irrigation level of 0.8Ep”
t0“for Tomato Growth”
Claim · model-written summary
Treatment T2 gave the highest CNQ.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- CNQe1
- Qualifier
- T2 treatment obtained the highest CNQe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“T2 treatment obtained the highest CNQ”
t0“for Tomato Growth”
Claim · model-written summary
PFPN decreased with increasing biogas slurry ratio.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- biogas slurry ratioe1
- Outcome
- PFPNe1
- Direction
- decreasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the PFPN decreased with the increase of biogas slurry ratio”
t0“for Tomato Growth”
Claim · model-written summary
Treatment T3 gave the largest PFPN.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- PFPNe1
- Qualifier
- T3 treatment acquired the largest PFPNe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“T3 treatment acquired the largest PFPN”
t0“for Tomato Growth”
Claim · model-written summary
Within an 80% confidence interval, yield, IWUE, CNQ and PFPN can all reach at least 80% of their maximums.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- the yield, IWUE, CNQ, and PFPNe1
- Value
- =80%e1
- Qualifier
- 39.233~43.134 Le2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the yield, IWUE, CNQ, and PFPN can reach =80% of their maximums at the same time”
e2“when the irrigation amount was in a range of 39.233~43.134 L and the nitrogen quantities was 7.983~8.426 g”
t0“for Tomato Growth”
Claim · model-written summary
T1 treatment is the best fertigation strategy for higher tomato production and better quality.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- best fertigation strategye1
- Qualifier
- higher production and better qualitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“T1 treatment was the best fertigation strategy for a higher production and better quality”
t0“for Tomato Growth”
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See all 978 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.