Abstract
Straw mulching farming is currently an effective dry farming technique for improving arid soil environments. Straw mulching technology can increase the infiltration capacity of soil water and improve crop yield and water use efficiency. In this study, the aim is to improve the soil water holding capacity, water retaining capacity, and comprehensive water use efficiency of crops in dry farmland. First, the response surface model is used to study and analyse the optimal parameters of straw returning and its mulching technology, and then, the crop yield, water consumption, and comprehensive water use efficiency of spring corn under different mulching conditions during 2017‐2019 are studied. The test results show that the optimized parameters obtained by the response surface model are as follows: film thickness is 0.03 mm, straw returning amount is 4500 kg/hm 2 , straw particle size is 5 mm, and straw returning depth is 25 mm. At this time, the maximum soil water storage can reach 404.50 mm. The results of the straw mulching test show that under 4500 kg/hm 2 mulching, the soil has more water storage, higher soil water content, and a simultaneous increase in water consumption, which is conducive to the efficient use of limited precipitation by crops. The field experiment for three years shows that 4500 kg/hm 2 straw (wheat) mulching in the dry farming area of southern Ningxia can better store water and protect soil moisture, promote the virtuous cycle of farmland soil water, and show outstanding performance in improving corn yield and water use efficiency, which can be popularized and implemented in spring corn production in this area.
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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 10
Claim · model-written summary
The optimized film thickness was 0.03 mm.
Not reportedTaxon
Verbatim
e0“film thickness is 0.03 mm”
t0“Farmland”
Claim · model-written summary
The optimized straw returning amount was 4500 kg/hm 2.
- Taxon
- spring corn
Zea mays subsp. mayse1 - Outcome
- straw returning amounte0
- Value
- 4500 kg/hm 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“straw returning amount is 4500 kg/hm 2”
e1“comprehensive water use efficiency of spring corn”
Claim · model-written summary
The optimized straw particle size was 5 mm.
- Taxon
- spring cornZea mays subsp. mayse1
- Outcome
- straw particle sizee0
- Value
- 5 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“straw particle size is 5 mm”
e1“comprehensive water use efficiency of spring corn”
Claim · model-written summary
The optimized straw returning depth was 25 mm.
- Taxon
- spring cornZea mays subsp. mayse1
- Outcome
- straw returning depthe0
- Value
- 25 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“straw returning depth is 25 mm”
e1“comprehensive water use efficiency of spring corn”
Claim · model-written summary
Maximum soil water storage under optimized parameters reached 404.50 mm.
Not reportedTaxon
Verbatim
e0“the maximum soil water storage can reach 404.50 mm”
e1“comprehensive water use efficiency of spring corn”
Claim · model-written summary
At 4500 kg/hm 2 mulching, soil water storage and soil water content were higher.
- Taxon
- spring cornZea mays subsp. mayse1
- Treatment
- 4500 kg/hm 2 mulchinge0
- Outcome
- water storage, higher soil water contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 4500 kg/hm 2 mulching, the soil has more water storage, higher soil water content”
e1“comprehensive water use efficiency of spring corn”
Claim · model-written summary
At 4500 kg/hm 2 mulching, water consumption increased.
- Taxon
- spring cornZea mays subsp. mayse1
- Treatment
- 4500 kg/hm 2 mulchinge0
- Outcome
- water consumptione0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 4500 kg/hm 2 mulching, the soil has more water storage, higher soil water content, and a simultaneous increase in water consumption”
e1“comprehensive water use efficiency of spring corn”
Claim · model-written summary
Wheat straw mulching improved corn yield in southern Ningxia dry farmland.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- 4500 kg/hm 2 straw (wheat) mulchinge0
- Outcome
- corn yielde0
- Direction
- improvinge0
- Setting
- southern Ningxiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4500 kg/hm 2 straw (wheat) mulching in the dry farming area of southern Ningxia can better store water and protect soil moisture, promote the virtuous cycle of farmland soil water, and show outstanding performance in improving corn yield and water use efficiency”
Claim · model-written summary
Wheat straw mulching improved corn water use efficiency in southern Ningxia.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- 4500 kg/hm 2 straw (wheat) mulchinge0
- Outcome
- water use efficiencye0
- Direction
- improvinge0
- Setting
- southern Ningxiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4500 kg/hm 2 straw (wheat) mulching in the dry farming area of southern Ningxia can better store water and protect soil moisture, promote the virtuous cycle of farmland soil water, and show outstanding performance in improving corn yield and water use efficiency”
Claim · model-written summary
The authors recommend 4500 kg/hm 2 straw mulching for spring corn production in this area.
- Taxon
- spring cornZea mays subsp. mayse1
- Treatment
- 4500 kg/hm 2 straw (wheat) mulchinge0
- Outcome
- spring corn productione1
- Setting
- southern Ningxiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4500 kg/hm 2 straw (wheat) mulching in the dry farming area of southern Ningxia”
e1“which can be popularized and implemented in spring corn production in this area”
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