CULTAN Fertilization Contributes to Lower N Leaching While Maintaining Yield DOI Creative Commons
Guénola Bernert,

Ernst Spiess,

Frank Liebisch

и другие.

Journal of Plant Nutrition and Soil Science, Год журнала: 2024, Номер unknown

Опубликована: Дек. 8, 2024

ABSTRACT Background The controlled uptake long‐term ammonium nutrition (CULTAN) fertilization technique consists of injecting a concentrated solution into the soil and aims to positively impact crop physiology N use efficiency. Aims This study assesses whether CULTAN can contribute lower leaching while maintaining yields in temperate regions with an annual precipitation around 1000 mm or higher. Methods We analyzed 12‐year lysimeter experiment two consecutive 6‐crop rotations 3‐year field winter wheat maize Switzerland. was compared conventional surface application nitrate fertilizer (ConvF). Results achieved at least similar ConvF both studies had 38% yield‐scaled lysimeters. In studies, displayed higher nitrogen recovery efficiency (NRE) ConvF, increase ranging from 8% 17% depending on type, although statistical significance only found for study. NRE were weakly correlated, indicating that other pathways are affected system. Finally, we suggest timing placement injection need be better adapted plant pedoclimatic conditions optimal nutrient yields. Conclusion areas high concentration groundwater, effective strategy complementing loss reduction measures.

Язык: Английский

Comprehensive assessment of the agronomic, environmental and economic benefits of localized fertilizer placement in China's intensive cereal production systems DOI

Solomon Yokamo,

Bin Wang, Muhammad Ishfaq

и другие.

Agricultural Systems, Год журнала: 2025, Номер 228, С. 104372 - 104372

Опубликована: Май 17, 2025

Язык: Английский

Процитировано

0
Optimizing nitrogen use efficiency and yield in wheat: insights from a comparative study of varieties under variable nitrogen inputs DOI
S. C. Tripathi,

Nitesh Kumar,

Karnam Venkatesh

и другие.

Journal of Plant Nutrition, Год журнала: 2025, Номер unknown, С. 1 - 21

Опубликована: Май 30, 2025

Язык: Английский

Процитировано

0
Effects of urea topdressing time on yield, nitrogen utilization, and quality of mechanical direct-seeding hybrid indica rice under slow-mixed fertilizer base application DOI Creative Commons
Yongjian Sun,

Mengwen Xing,

Ziting He

и другие.

Frontiers in Plant Science, Год журнала: 2024, Номер 15

Опубликована: Май 10, 2024

The use of controlled-release nitrogen (N) fertilizers has been shown to improve yield and N-use efficiency (NUE) in mechanical transplanted rice. However, the fertilizer requirements for direct-seeding rice differ from those effects on yield, NUE, quality are still unknown. Hybrid indica varieties Yixiangyou 2115 Fyou 498 were used as test materials, slow-mixed N (120 kg hm-2) a base (N1), N1+urea-N (30 once (N2), topdressing at tillering stage (N3), booting (N4) four management study their impact NUE Compared with 2115, significantly increased photosynthetic potential, population growth rate, root vigor, transport rate by 3.34-23.88%. This increase further resulted significant improvement urea-N 1.73-5.95 kg-1. showed decrease head taste value 3.34-7.67%. All treated N4 that potential 15.41-62.72%, reduce decay vigor 5.01-21.39%, promote amount stem-sheaths (leaves) 13.54-59.96%, then yields 4.45-20.98% 5.20-45.56 Moreover, processing values optimized using this model. Correlation analysis revealed achieve synergistic enhancement high-yield, high-quality, high-NUE rice, it is crucial focus increasing promoting leaf transport. Specifically, contribution most important. These findings offer an effective strategy 4R nutrient stewardship (right source, right method, timing) hybrid

Язык: Английский

Процитировано

2
Nitrogen and phosphorus interactions at a 21 nitrogen:1 phosphorus Redfield‐like ratio impact growth and seed yield in wheat (Triticum aestivum L.) DOI Creative Commons

S. S. Marques da Silva,

Lubna Faizullah, Maïté S. Guignard

и другие.

Food and Energy Security, Год журнала: 2024, Номер 13(4)

Опубликована: Июль 1, 2024

Abstract Efficient use of nitrogen (N) and phosphorus (P) is essential to reduce fertilizer costs nutrient pollution lower the carbon footprint agriculture. This requires a better understanding N P limitations on photosynthesis biomass generation in one world's most important crops, wheat ( Triticum aestivum ). In fully factorial experiment, we find that limiting nutrient, or P, at Redfield‐like N:P ratio (21N:1P molar) produces ‘effective dose fertilizer’ for above‐ground (seed vegetative). Best‐fit structural equation models showed neither nor applied excess 21N:1P led any increase biomass. The light (qP, NPQ) dark A max , V cmax J ) reactions are also constrained by ratio. Beyond this ratio, ‘excess N’ P’ had no effects. direct effects accumulation were stronger than its indirect via photosynthesis, likely driven building nucleic acids needed cell division, maintenance RNA transcription. Modern composite fertilizers typically provided much higher content potentially resulting huge global wastage finite resource, with all concomitant farmer, consumer environment.

Язык: Английский

Процитировано

1
Evaluation of the Effectiveness of a Humic Substances-Based Product for Lettuce Growth and Nitrogen Use Efficiency under Low Nitrogen Conditions DOI Creative Commons
Santiago Atero‐Calvo, Fernando Magro,

Giacomo Masetti

и другие.

Agriculture, Год журнала: 2024, Номер 14(9), С. 1492 - 1492

Опубликована: Сен. 1, 2024

Increasing crop yield with low-N supplies has become one of the main aims current agriculture to reduce excessive use chemical fertilizers. A sustainable strategy improve productivity, N assimilation, and Use Efficiency (NUE) under limit-N growth conditions is application biostimulants, such as humic substances (HS). Here, we evaluated effectiveness an HS-based biostimulant, BLACKJAK®, in improving lettuce NUE N-deficit conditions. Thus, BLACKJAK® was applied radicularly (R) foliarly (F) at following doses: R-HS 0.40 mL/L, 0.60 F-HS 7.50 10.00 mL/L. Three levels were applied: optimal (7 mM) (3 mM 1 mM). The results showed that shoot dry weight (DW) reduced 3 (−32%) (−42%). However, R F enhanced plant all three levels, especially which increase 43% DW N, compared plants not treated HS. BLAKCJAK® also improved photosynthesis, NO3− organic accumulation, activity assimilation enzymes, concentration amino acids proteins, regardless level. In addition, HS parameters conditions, except for mL/L N. Hence, our study suggests product could be a good candidate reducing fertilizer low although further research required.

Язык: Английский

Процитировано

0
CULTAN Fertilization Contributes to Lower N Leaching While Maintaining Yield DOI Creative Commons
Guénola Bernert,

Ernst Spiess,

Frank Liebisch

и другие.

Journal of Plant Nutrition and Soil Science, Год журнала: 2024, Номер unknown

Опубликована: Дек. 8, 2024

ABSTRACT Background The controlled uptake long‐term ammonium nutrition (CULTAN) fertilization technique consists of injecting a concentrated solution into the soil and aims to positively impact crop physiology N use efficiency. Aims This study assesses whether CULTAN can contribute lower leaching while maintaining yields in temperate regions with an annual precipitation around 1000 mm or higher. Methods We analyzed 12‐year lysimeter experiment two consecutive 6‐crop rotations 3‐year field winter wheat maize Switzerland. was compared conventional surface application nitrate fertilizer (ConvF). Results achieved at least similar ConvF both studies had 38% yield‐scaled lysimeters. In studies, displayed higher nitrogen recovery efficiency (NRE) ConvF, increase ranging from 8% 17% depending on type, although statistical significance only found for study. NRE were weakly correlated, indicating that other pathways are affected system. Finally, we suggest timing placement injection need be better adapted plant pedoclimatic conditions optimal nutrient yields. Conclusion areas high concentration groundwater, effective strategy complementing loss reduction measures.

Язык: Английский

Процитировано

0