Abstract
Straw mulching cultivation technology can improve the soil environment of farmland, and it is applied in the dry farming area of Northwestern China. There are few studies on the effect of corn straw mulching on the soil temperature and yield of potato fields in dry land in Northwestern China. In this paper, three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up in the period of 2022 to 2023. A field plot experiment was carried out to determine the soil temperature, growth index, and yield data during the key growth period. The statistical analysis results show that JG and HM significantly increased the potato yield, by 12.27~18.30% and 13.09~18.10%, compared with CK, but there was no significant difference between JG and HM. The yield was significantly positively correlated with tuber weight per plant at the tuber expansion stage, starch accumulation stage, and harvest stage (0.47 *~0.60 **), and significantly negatively correlated with the number of tubers at the harvest stage (−0.54 *). Compared with CK, HM increased the average soil temperature over the whole growth period by 0.27~0.92 °C. In 2022, the increase in the 5 cm soil layer in the tuber expansion period was the largest, reaching 0.83 °C. In 2023, the increase in the 5 cm soil layer in the starch accumulation period was the largest, reaching 3.08 °C. JG reduced the soil temperature over the whole growth period by 0.52 °C, and the 20 cm soil layer in the tuber formation period decreased the most, reaching 1.45 °C, which aggravated the soil temperature change over the whole growth period (the amplitude was 4.13~4.53 °C). The temperature difference between day and night in different growth periods in 2022 was 2.14~5.41 °C, and the soil temperature in some growth periods in 2022 even exceeded that with HM. The results showed that JG could regulate soil temperature and optimize the relationship between tuber weight per plant, tuber number per plant, and biomass allocation during tuber formation, which are beneficial for the improvement of the potato yield in the dry farming area of Northwestern China.
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Claims 14
Claim · model-written summary
Corn straw mulching mechanized no-tillage planting significantly increased potato yield compared with no-covering flat planting.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- corn straw mulching mechanized no-tillage plantinge0
- Outcome
- potato yielde1
- Direction
- significantly increasede1
- Value
- 12.27~18.30%e1
- Comparator
- no-covering open field flat plantinge0
- Setting
- Northwestern Chinat1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
t1“Northwestern China”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e1“JG and HM significantly increased the potato yield, by 12.27~18.30% and 13.09~18.10%, compared with CK”
Claim · model-written summary
Black film ridge significantly increased potato yield compared with no-covering flat planting.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- black film ridgee0
- Outcome
- potato yielde1
- Direction
- significantly increasede1
- Value
- 13.09~18.10%e1
- Comparator
- no-covering open field flat plantinge0
- Setting
- Northwestern Chinat1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
t1“Northwestern China”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e1“JG and HM significantly increased the potato yield, by 12.27~18.30% and 13.09~18.10%, compared with CK”
Claim · model-written summary
No significant difference in potato yield was found between corn straw mulching and black film ridge.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- corn straw mulching mechanized no-tillage plantinge0
- Outcome
- potato yielde1
- Direction
- no significant differencee2
- Comparator
- black film ridgee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e1“JG and HM significantly increased the potato yield, by 12.27~18.30% and 13.09~18.10%, compared with CK”
e2“there was no significant difference between JG and HM”
Claim · model-written summary
Potato yield was significantly positively correlated with tuber weight per plant at the tuber expansion, starch accumulation and harvest stages.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- tuber expansion stagee3
- Outcome
- yielde3
- Direction
- significantly positively correlatede3
- Value
- 0.47 *~0.60 **e3
- Qualifier
- tuber weight per plante3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e3“The yield was significantly positively correlated with tuber weight per plant at the tuber expansion stage, starch accumulation stage, and harvest stage (0.47 *~0.60 **)”
Claim · model-written summary
Potato yield was significantly negatively correlated with the number of tubers at harvest.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- harvest stagee4
- Outcome
- yielde3
- Direction
- significantly negatively correlatede4
- Value
- −0.54 *e4
- Qualifier
- number of tuberse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e3“The yield was significantly positively correlated with tuber weight per plant at the tuber expansion stage, starch accumulation stage, and harvest stage (0.47 *~0.60 **)”
e4“significantly negatively correlated with the number of tubers at the harvest stage (−0.54 *)”
Claim · model-written summary
Black film ridge increased the average soil temperature over the whole growth period compared with no-covering flat planting.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- HMe5
- Outcome
- average soil temperature over the whole growth periode5
- Direction
- increasede5
- Value
- 0.27~0.92 °Ce5
- Comparator
- CKe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e5“Compared with CK, HM increased the average soil temperature over the whole growth period by 0.27~0.92 °C”
Claim · model-written summary
In 2022 the increase in soil temperature at 5 cm was largest in the tuber expansion period, at 0.83 °C.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- tuber expansion periode6
- Treatment
- black film ridgee0
- Outcome
- 5 cm soil layere6
- Direction
- the largeste6
- Value
- 0.83 °Ce6
- Qualifier
- In 2022e6
- Comparator
- no-covering open field flat plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e6“In 2022, the increase in the 5 cm soil layer in the tuber expansion period was the largest, reaching 0.83 °C”
Claim · model-written summary
In 2023 the increase in soil temperature at 5 cm was largest in the starch accumulation period, at 3.08 °C.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- starch accumulation periode7
- Treatment
- black film ridgee0
- Outcome
- 5 cm soil layere7
- Direction
- the largeste7
- Value
- 3.08 °Ce7
- Qualifier
- In 2023e7
- Comparator
- no-covering open field flat plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e7“In 2023, the increase in the 5 cm soil layer in the starch accumulation period was the largest, reaching 3.08 °C”
Claim · model-written summary
Corn straw mulching mechanized no-tillage planting reduced soil temperature over the whole growth period by 0.52 °C.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- corn straw mulching mechanized no-tillage plantinge0
- Outcome
- soil temperature over the whole growth periode1
- Direction
- reducede1
- Value
- 0.52 °Ce1
- Comparator
- no-covering open field flat plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e1“JG reduced the soil temperature over the whole growth period by 0.52 °C”
Claim · model-written summary
The 20 cm soil layer in the tuber formation period decreased most, by 1.45 °C.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- tuber formation periode1
- Treatment
- corn straw mulching mechanized no-tillage plantinge0
- Outcome
- 20 cm soil layere1
- Direction
- decreased the moste1
- Value
- 1.45 °Ce1
- Comparator
- no-covering open field flat plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e1“the 20 cm soil layer in the tuber formation period decreased the most, reaching 1.45 °C”
Claim · model-written summary
Corn straw mulching mechanized no-tillage planting aggravated the soil temperature change over the whole growth period.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- corn straw mulching mechanized no-tillage plantinge0
- Outcome
- soil temperature change over the whole growth periode1
- Direction
- aggravatede1
- Value
- 4.13~4.53 °Ce1
- Comparator
- no-covering open field flat plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e0“three treatments, black film ridge (HM), corn straw mulching mechanized no-tillage planting (JG) and no-covering open field flat planting (CK), were set up”
e1“which aggravated the soil temperature change over the whole growth period (the amplitude was 4.13~4.53 °C)”
Claim · model-written summary
The day-night temperature difference in 2022 ranged from 2.14 to 5.41 °C across growth periods.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- temperature difference between day and nighte1
- Value
- 2.14~5.41 °Ce1
- Qualifier
- in different growth periodse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e1“The temperature difference between day and night in different growth periods in 2022 was 2.14~5.41 °C”
Claim · model-written summary
In some growth periods in 2022 soil temperature under corn straw mulching even exceeded that under black film ridge.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- soil temperaturee1
- Direction
- exceedede1
- Comparator
- HMe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e1“the soil temperature in some growth periods in 2022 even exceeded that with HM”
Claim · model-written summary
Corn straw mulching mechanized no-tillage is suggested to regulate soil temperature and optimise biomass allocation during tuber formation.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- JGe1
- Outcome
- biomass allocation during tuber formatione1
- Qualifier
- regulate soil temperaturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Potato Yield”
e1“JG could regulate soil temperature and optimize the relationship between tuber weight per plant, tuber number per plant, and biomass allocation during tuber formation”
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