Abstract
It is important to quantify nutrient requirements and optimize fertilization to improve peanut yield and fertilizer use efficiency. In this study, a multi-site field trial was conducted from 2020 to 2021 in the North China Plain to estimate nitrogen (N), phosphorus (P), and potassium (K) uptake and requirements of peanuts, and to evaluate the effects of fertilization recommendations from the regional mean optimal rate (RMOR) on dry matter, pod yield, nutrient uptake, and fertilizer use efficiency. Results show that compared with farmer practice fertilization (FP), optimal fertilization (OPT) based on the RMOR increased peanut dry matter by 6.6% and pod yield by 10.9%. The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index. The OPT treatment increased N, P, and K uptake by 19.3%, 7.3%, and 11.0% compared with FP, respectively. However, the average of yield, nutrition uptake, and harvest indexes of N, P, and K were not significantly affected by fertilization. The peanut required 42.0 kg N, 4.6 kg P, and 15.3 kg K to produce 1000 kg of pods. The OPT treatment significantly improved the N partial factor productivity and N uptake efficiency but decreased the K partial factor productivity and K uptake efficiency. The present study demonstrates that fertilizer recommendations from RMOR improve N use efficiency, and reduce N and P fertilizer application without yield loss in regions with smallholder farmers, and the corresponding estimation of nutrient requirements helps to make peanut fertilization recommendations.
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Claims 18
Claim · model-written summary
OPT increased peanut dry matter by 6.6% relative to FP.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- optimal fertilization (OPT)e0
- Outcome
- peanut dry mattere0
- Direction
- increasede0
- Value
- 6.6%e0
- Comparator
- farmer practice fertilization (FP)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with farmer practice fertilization (FP), optimal fertilization (OPT) based on the RMOR increased peanut dry matter by 6.6% and pod yield by 10.9%”
Claim · model-written summary
OPT increased pod yield by 10.9% relative to FP.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- optimal fertilization (OPT)e0
- Outcome
- pod yielde0
- Direction
- increasede0
- Value
- 10.9%e0
- Comparator
- farmer practice fertilization (FP)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compared with farmer practice fertilization (FP), optimal fertilization (OPT) based on the RMOR increased peanut dry matter by 6.6% and pod yield by 10.9%”
Claim · model-written summary
Average N uptake rate was 214.3 kg/ha.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- uptake rates of N, P, and Ke0
- Value
- 214.3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index”
t0“Peanut”
Claim · model-written summary
Average P uptake rate was 23.3 kg/ha.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- uptake rates of N, P, and Ke0
- Value
- 23.3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index”
t0“Peanut”
Claim · model-written summary
Average K uptake rate was 78.4 kg/ha.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- uptake rates of N, P, and Ke0
- Value
- 78.4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index”
t0“Peanut”
Claim · model-written summary
N harvest index averaged 76.0%.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- N harvest indexe0
- Value
- 76.0%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index”
t0“Peanut”
Claim · model-written summary
P harvest index averaged 59.8%.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- P harvest indexe0
- Value
- 59.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index”
t0“Peanut”
Claim · model-written summary
K harvest index averaged 41.4%.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- K harvest indexe0
- Value
- 41.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average uptake rates of N, P, and K were 214.3, 23.3, and 78.4 kg/ha, respectively, with 76.0% N harvest index, 59.8% P harvest index, and 41.4% K harvest index”
t0“Peanut”
Claim · model-written summary
OPT increased N uptake by 19.3% versus FP.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- OPT treatmente0
- Outcome
- N, P, and K uptakee0
- Direction
- increasede0
- Value
- 19.3%e0
- Comparator
- FPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The OPT treatment increased N, P, and K uptake by 19.3%, 7.3%, and 11.0% compared with FP, respectively”
t0“Peanut”
Claim · model-written summary
OPT increased P uptake by 7.3% versus FP.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- OPT treatmente0
- Outcome
- N, P, and K uptakee0
- Direction
- increasede0
- Value
- 7.3%e0
- Comparator
- FPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The OPT treatment increased N, P, and K uptake by 19.3%, 7.3%, and 11.0% compared with FP, respectively”
t0“Peanut”
Claim · model-written summary
OPT increased K uptake by 11.0% versus FP.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- OPT treatmente0
- Outcome
- N, P, and K uptakee0
- Direction
- increasede0
- Value
- 11.0%e0
- Comparator
- FPe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The OPT treatment increased N, P, and K uptake by 19.3%, 7.3%, and 11.0% compared with FP, respectively”
t0“Peanut”
Claim · model-written summary
Producing 1000 kg of peanut pods required 42.0 kg N.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- Ne0
- Value
- 42.0 kg Ne0
- Qualifier
- 1000 kg of podse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut required 42.0 kg N, 4.6 kg P, and 15.3 kg K to produce 1000 kg of pods”
Claim · model-written summary
Producing 1000 kg of peanut pods required 4.6 kg P.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- Pe0
- Value
- 4.6 kg Pe0
- Qualifier
- 1000 kg of podse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut required 42.0 kg N, 4.6 kg P, and 15.3 kg K to produce 1000 kg of pods”
Claim · model-written summary
Producing 1000 kg of peanut pods required 15.3 kg K.
- Taxon
- peanutArachis hypogaeae0
- Outcome
- Ke0
- Value
- 15.3 kg Ke0
- Qualifier
- 1000 kg of podse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The peanut required 42.0 kg N, 4.6 kg P, and 15.3 kg K to produce 1000 kg of pods”
Claim · model-written summary
OPT improved N partial factor productivity and uptake efficiency.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- OPT treatmente0
- Outcome
- N partial factor productivity and N uptake efficiencye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The OPT treatment significantly improved the N partial factor productivity and N uptake efficiency but decreased the K partial factor productivity and K uptake efficiency”
t0“Peanut”
Claim · model-written summary
OPT decreased K partial factor productivity and uptake efficiency.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- OPT treatmente0
- Outcome
- K partial factor productivity and K uptake efficiencye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The OPT treatment significantly improved the N partial factor productivity and N uptake efficiency but decreased the K partial factor productivity and K uptake efficiency”
t0“Peanut”
Claim · model-written summary
Average yield, nutrient uptake and N, P and K harvest indexes were not significantly affected by fertilization.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- fertilizatione0
- Outcome
- average of yield, nutrition uptake, and harvest indexes of N, P, and Ke0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the average of yield, nutrition uptake, and harvest indexes of N, P, and K were not significantly affected by fertilization”
t0“Peanut”
Claim · model-written summary
RMOR recommendations reduced N and P fertilizer applications without yield loss.
- Taxon
- peanutArachis hypogaeat0
- Outcome
- N and P fertilizer applicatione0
- Direction
- reducee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer recommendations from RMOR improve N use efficiency, and reduce N and P fertilizer application without yield loss”
t0“Peanut”
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