Abstract
This field experiment was conducted to study the influence of humic acid application rate on maize yield,economic benefit,and nitrogen use efficiency as well as efficiency of soil fertility.The results showed that: the maize ear length,ear diameter,barren tip length,hundred kernel weight had various remarkable changes with the increase of humic acid fertilization.The yield and input-output ratio were significantly increased in three humic acid compound fertilizer treatments compared with CK and NPK treatment.In addition,the HA+NPK treatments ameliorated physical properties of soil and promoted the transfer of nitrogen from root and stem to the grain,and the nitrogen use efficiency was increased by 11.93%～23.37% in three humic acid compound fertilizer treatments than those of NPK treatments.To achieve high corn yield and high nitrogen use efficiency,the optimal HA rate in humic acid compound fertilizer should be controlled between 20% to 25%.
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Claims 7
Claim · model-written summary
Humic acid compound fertilizer significantly increases maize yield and input-output ratio compared with CK and NPK treatment.
- Treatment
- humic acid compound fertilizere1
- Outcome
- yield and input-output ratioe1
- Direction
- increasede1
- Comparator
- CK and NPK treatmente1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e1“The yield and input-output ratio were significantly increased in three humic acid compound fertilizer treatments compared with CK and NPK treatment”
Claim · model-written summary
Humic acid compound fertilizer increases maize nitrogen use efficiency by 11.93% to 23.37% compared with NPK treatments.
- Treatment
- humic acid compound fertilizere2
- Outcome
- nitrogen use efficiencye2
- Direction
- increasede2
- Value
- 11.93%～23.37%e2
- Comparator
- NPK treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e2“nitrogen use efficiency was increased by 11.93%～23.37% in three humic acid compound fertilizer treatments than those of NPK treatments”
Claim · model-written summary
The optimal humic acid rate in humic acid compound fertilizer for maize is 20% to 25%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e3“the optimal HA rate in humic acid compound fertilizer should be controlled between 20% to 25%”
Claim · model-written summary
Humic acid fertilization changes maize ear length, ear diameter and barren tip length, with no clear direction stated.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e4“the maize ear length,ear diameter,barren tip length,hundred kernel weight had various remarkable changes with the increase of humic acid fertilization”
Claim · model-written summary
Humic acid fertilization changes maize hundred kernel weight, with no clear direction stated.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e4“the maize ear length,ear diameter,barren tip length,hundred kernel weight had various remarkable changes with the increase of humic acid fertilization”
Claim · model-written summary
HA+NPK treatments ameliorate soil physical properties.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e5“the HA+NPK treatments ameliorated physical properties of soil and promoted the transfer of nitrogen from root and stem to the grain”
Claim · model-written summary
HA+NPK treatments promote the transfer of nitrogen from root and stem to the grain in maize.
- Treatment
- HA+NPK treatmentse5
- Outcome
- transfer of nitrogen from root and stem to the graine5
- Direction
- promotede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“influence of humic acid application rate on maize yield”
e5“the HA+NPK treatments ameliorated physical properties of soil and promoted the transfer of nitrogen from root and stem to the grain”
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