MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03714nab|a22004097a|4500 |
| 001 - CONTROL NUMBER |
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| control field |
68795 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250516160720.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
20251s2025|||||sz ||p|op||||00||0|eng|dd |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
2504-3129 (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
https://doi.org/10.3390/nitrogen6010007 |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Pandit, N.R. |
| 9 (RLIN) |
28805 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Nitrogen management utilizing 4R nutrient stewardship : |
| Remainder of title |
A sustainable strategy for enhancing NUE, reducing maize yield gap and increasing farm profitability |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Switzerland : |
| Name of publisher, distributor, etc. |
MDPI, |
| Date of publication, distribution, etc. |
2025. |
| 500 ## - GENERAL NOTE |
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| General note |
Peer review |
| 500 ## - GENERAL NOTE |
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| General note |
Open Access |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
The imbalanced use of fertilizers, particularly the inefficient application of nitrogen (N), has led to reduced nitrogen use efficiency (NUE), lowered crop yields and increased N losses in Nepal. This study aimed to enhance yields, NUE and farm profitability by optimizing N fertilizer rates, application timing and methods through multilocation trials and demonstrations. In 2017, 57 field trials were conducted in two mid-hill districts using a completely randomized block design. The treatments included control (CK), NPK omission (N0, P0 and K0), variable N rates (60, 120, 180 and 210 kg N ha-1) and top-dressing timings (120 kg N ha-1 applied at knee height and shoulder height, V6, V10 and V8 stages). A full dose of recommended P (60 kg ha-1) and K (40 kg ha-1) were applied at planting, while N was top-dressed in two equal splits at knee-height and shoulder-height growth stages for P and K omission treatments, as well as for treatment with variable N rates. Grain yields responded quadratically, with optimum N rates ranging from 120 to 180 kg ha-1 across the districts. N applied at 120 kg ha-1 and top-dressed at V6 and V10 increased maize yield by 20-25%, partial factor productivity of nitrogen (PFPN) by 12%, agronomic efficiency of nitrogen (AEN) by 21% and gross margin by 10% compared to conventional knee and shoulder height application. In 2018 and 2019, fertilizer BMPs, including V6 and V10 top-dressing and the urea briquette deep placement (UDP) were demonstrated on 102 farmers' fields across five mid-hill districts to compare their agronomic and economic significance over traditional farmers' practice (FP). UDP, validated in 2018 field trials, increased yields by 34% (8.8 t ha-1) and urea top-dressing at V6 and V10 increased yield by 33% (8.7 t ha-1) compared to FP (5.8 t ha-1), reducing the average yield gap by 3.0 t ha-1. Moreover, the gross margin was increased by 39% (V6 and V10) and 40% (UDP) over FP. The findings highlight the need for widespread adoption of fertilizer BMPs to close the yield gap and maximize profitability with minimal nitrogen footprint. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
Pandit, N.R. : Not in IRS staff list but CIMMYT Affiliation |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
Shiva Adhikari : Not in IRS staff list but CIMMYT Affiliation |
| 597 ## - CGIAR Initiative |
|---|
| Donor or Funder |
United States Agency for International Development (USAID) |
| -- |
Feed the Future Nepal Seed an Fertilizer Project (NSAF) |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Nitrogen |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
2912 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Maize |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1173 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Productivity |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1756 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Nitrogen-use efficiency |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
30861 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Farm income |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
9287 |
| 651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME |
|---|
| Geographic name |
Nepal |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
3932 |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Shiva Adhikari |
| 9 (RLIN) |
38802 |
| 700 0# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Shree Prasad Vista |
| 9 (RLIN) |
38803 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Choudhary, D. |
| Field link and sequence number |
001710010 |
| Miscellaneous information |
Sustainable Agrifood Systems |
| 9 (RLIN) |
8456 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
Nitrogen |
| Related parts |
v. 6, no. 1, art. 7 |
| Place, publisher, and date of publication |
Switzerland : MDPI, 2025. |
| International Standard Serial Number |
2504-3129 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS |
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| Link text |
Open Access through DSpace |
| Uniform Resource Identifier |
https://hdl.handle.net/10883/35643 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |
| Suppress in OPAC |
No |
| Source of classification or shelving scheme |
Dewey Decimal Classification |