Article
Agronomy
Zujiao Shi, Donghua Liu, Miao Liu, Muhammad Bilal Hafeez, Pengfei Wen, Xiaoli Wang, Rui Wang, Xudong Zhang, Jun Li
Summary: The study found through long-term field experiments that in the winter wheat-summer maize double cropping system, proper fertilization can increase crop yield and reduce nitrate residue levels.
FIELD CROPS RESEARCH
(2021)
Article
Agronomy
Haoru Li, Xurong Mei, Vinay Nangia, Rui Guo, Yuee Liu, Weiping Hao, Jiandong Wang
Summary: The study found that urea and calcium nitrate had higher yields in the first year, while ammonium sulfate increased wheat yield in subsequent years and urea and ammonium sulfate had higher average yields for maize, with urea performing better in NUE and WUE. Urea also had lower N loss compared to other fertilizers after three cycles, making it the optimal choice for maize under drip fertigation.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Environmental Sciences
Gongning Chen, Yanhong Du, Liping Fang, Xiangqin Wang, Chuanping Liu, Huanyun Yu, Mi Feng, Xi Chen, Fangbai Li
Summary: This study investigates the effects of different forms of nitrogen fertilizer on the reduction and dissolution of arsenic-bearing iron minerals and microbial-mediated arsenic transformation processes. The results show that nitrate nitrogen fertilizer reduces the bio-availability of arsenic in soil, while ammonium nitrogen fertilizer promotes the release of arsenic into porewater. However, the combined application of nitrate and ammonium nitrogen has no significant effect on arsenic concentration in rice grain and its transformation in paddy soils. These findings provide insights into the rational use of nitrogen fertilizers to reduce the risk of arsenic contamination in rice.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agronomy
Jin Kakiuchi, Tohru Kobata
Summary: This study aimed to investigate the relationship between phosphorus uptake and phosphorus recovery in soybeans under different nitrogen application conditions. The results showed that phosphorus uptake can be represented as a function of phosphorus recovery, which is influenced by nitrogen application and the capacity for phosphorus uptake. Seed production is greatly influenced by nitrogen uptake, which is determined by fertilizer, soil, and fixed nitrogen.
Article
Environmental Sciences
Santiago Tamagno, Alison J. Eagle, Eileen L. McLellan, Chris van Kessel, Bruce A. Linquist, Jagdish Kumar Ladha, Mark E. Lundy, Cameron M. Pittelkow
Summary: Nitrate leaching from agriculture is a major cause of groundwater contamination and freshwater ecosystem degradation. Analysis of global field studies revealed that rainfall, nitrogen fertilizer rate, and crop nitrogen removal are the most important factors affecting nitrate leaching. To reduce nitrogen losses, science-based management practices should be adopted and tailored to different regions.
ENVIRONMENTAL RESEARCH LETTERS
(2022)
Article
Agronomy
Zhenxing Zhu, Dan Li, Ling Cong, Xiaochun Lu
Summary: This study systematically compared and identified microRNAs involved in both single and triple NPK nutrient deficiency responses, shedding light on the regulation mechanism of miRNAs under multiple nutrient deficiency conditions. Several novel miRNA activities were discovered through this research.
Article
Plant Sciences
Lijie Li, Qian Li, Kyle E. Davis, Caitlin Patterson, Sando Oo, Wanying Liu, Jia Liu, Guo Wang, Julia Elise Fontana, Thomas Elliott Thornburg, Isaac Seth Pratt, Fei Li, Zhiyong Zhang, Yanzhong Zhou, Xiaoping Pan, Baohong Zhang
Summary: The study revealed that nutrient deficiency, specifically nitrogen and potassium, significantly reduced plant growth and root development in peanuts through miRNA-mediated pathways. Nitrogen deficiency decreased primary root length and lateral root number, while potassium deficiency promoted primary and lateral root growth. Roots responded differently to nitrogen and potassium deficiency stresses, potentially due to the regulation of miRNAs.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Avia Saloner, Nirit Bernstein
Summary: The ratio of NH4/NO3 supply to cannabis plants has a significant impact on plant function and production. Higher NH4 levels may lead to adverse effects, while moderate levels are suitable for medical cannabis cultivation.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Sebastian Kusmierz, Monika Skowronska, Przemyslaw Tkaczyk, Wojciech Lipinski, Jacek Mielniczuk
Summary: Over the past few decades, the importance of soil organic carbon (SOC) and mineral nitrogen (N-min) in agroecosystems, particularly nitrates (NO3-), has been widely recognized due to their crucial roles in soil fertility, crop productivity, environmental quality, and/or climate change mitigation and adaptation. In this study conducted in Polish arable lands, the contents of organic carbon, ammonium, and nitrate in soils were evaluated according to different pH levels, texture, and fertilization rates. The results indicated that soil pH and texture, as well as mineral and organic fertilization, significantly influenced SOC content, while the same factors, except organic amendments, significantly affected mineral nitrogen concentration.
Article
Agronomy
Michael Cahn, Richard Smith, Forrest Melton
Summary: Vegetable growers in California's central coast are facing pressure to reduce nitrate loading in water supplies, and tools like the Soil Nitrate Quick Test and reference evapotranspiration have been shown to improve water and fertilizer management in vegetable production. To address time constraints, the CropManage online application was developed to facilitate the use of these tools. Trials have demonstrated that following CropManage recommendations can reduce fertilizer or irrigation without compromising yield.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Plant Sciences
M. M. Aci, A. Lupini, A. Mauceri, F. Sunseri, M. R. Abenavoli
Summary: The study revealed that under short-term nitrate limiting supply, the genotype RO showed higher nitrate storage and remobilization abilities compared to UC82, while under long-term limiting conditions, the two genotypes exhibited differential gene expression levels related to nitrate assimilation and allocation. These results suggest that the Nitrogen Utilization Efficiency component plays a central role in enhancing Nitrogen Use Efficiency in tomato plants.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Agriculture, Multidisciplinary
Zujiao Shi, Donghua Liu, Wenhe Luo, Muhammad Bilal Hafeez, Jun Li, Pengfei Wen, Xiaoli Wang
Summary: A suitable combined nitrogen and phosphorus fertilization strategy was established to balance crop yields and soil nitrogen supply capacity, based on the nitrate-N (NO3-N) threshold determined in a wheat-maize double cropping system. By optimizing fertilizer rates, the study successfully reduced nitrate pollution risk and maintained crop yields at a minimal reduction.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Environmental Sciences
Sang-Hyun Lee, Amjad T. Assi, Rabi H. Mohtar, Meryem Hamane, Pu Reun Yoon, Seung-Hwan Yoo
Summary: The aim of this study was to analyze various sustainability strategies for phosphate and phosphorous fertilizer production systems. The study used the Water-Energy-Food (WEF) Nexus Tool 2.0 adapted for the phosphate industry to assess different scenarios based on environmental priorities identified by the Moroccan phosphate industry. The tool provides sustainability indices for resource allocation and CO2 emissions, allowing stakeholders to make informed decisions based on trade-offs involved.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Plant Sciences
Nicolas Marro, Javier Lidoy, Maria Angeles Chico, Carlos Rial, Juan Garcia, Rosa M. Varela, Francisco A. Macias, Maria J. Pozo, Martina Janouskova, Juan A. Lopez-Raez
Summary: Nitrogen (N) and phosphorus (P) are essential macronutrients for plant growth, and Strigolactones (SLs) play a key role in regulating plant responses to phosphorus deficiency and mediating the N-P signaling interplay. SLs prioritize nitrogen status over phosphorus status in plants, affecting biosynthesis and modulating the expression of key regulatory genes in phosphate and nitrate signaling pathways. This suggests that SLs are involved in more physiological processes than previously proposed.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Agronomy
Zaiga Landorfa-Svalbe, Mara Vikmane, Gederts Ievinsh
Summary: Minimizing the harmful effects of soil pollution on agriculture and food safety is a major challenge in modern agriculture. This study explored the possibility of reducing lead accumulation in maize plants grown in contaminated soil through vermicompost amendment. The results showed that vermicompost is a promising soil amendment for reducing heavy metal uptake and accumulation in crop plants.
Article
Plant Sciences
Joshua C. O. Koh, Bikram P. Banerjee, German Spangenberg, Surya Kant
Summary: This article presents an automated hyperspectral vegetation index system that can rapidly generate novel trait-specific indices for estimating plant characteristics. The system showed excellent performance in estimating chlorophyll and sugar contents in wheat and outperformed existing indices and regression methods.
Article
Chemistry, Analytical
Bikram Pratap Banerjee, German Spangenberg, Surya Kant
Summary: The phenotypic characterization of crop genotypes is important but challenging in crop management and agriculture research. Customized sensing systems with specialized hardware and software provide a powerful and low-cost solution. This study developed a Raspberry Pi-based LiDAR sensor named CBM, enabled by the internet of things, which offers a complete end-to-end pipeline. CBM shows high correlation with ground truth manual measurements and is applicable for high-throughput plant phenotyping and precision agricultural management.
Article
Agronomy
Abeya Temesgen Tefera, Bikram Pratap Banerjee, Babu Ram Pandey, Laura James, Ramesh Raj Puri, Onella Cooray, Jasmine Marsh, Mark Richards, Surya Kant, Glenn J. Fitzgerald, Garry Mark Rosewarne
Summary: The study examined the effectiveness of different vegetation indices for breeding line selection and found a strong correlation between NDVI readings from aerial and ground-based sensors. NDVI was related to pea genotype rankings and early growth biomass production, with a positive correlation to seed yield in water limiting environments. High vigour scores were associated with increased seed yield in drier environments, but lower yields in better conditions.
FIELD CROPS RESEARCH
(2022)
Article
Agronomy
Huanhuan Zhao, Keith W. Savin, Yongjun Li, Edmond J. Breen, Pankaj Maharjan, Josquin F. Tibbits, Surya Kant, Matthew J. Hayden, Hans D. Daetwyler
Summary: This study investigated the phenotypic variation and genetic architecture of important agronomic traits in safflower under different environmental conditions using genome-wide association studies. The results revealed significant variations in grain yield, days to flowering, plant height, 500 seed weight, seed oil content, and crude protein content. The study also identified several marker-trait associations for these traits, which exhibited different genetic correlations across environments.
MOLECULAR BREEDING
(2022)
Editorial Material
Plant Sciences
Nandula Raghuram, Tariq Aziz, Surya Kant, Jianbin Zhou, Susanne Schmidt
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Abdulqader Jighly, Thabo Thayalakumaran, Garry J. O'Leary, Surya Kant, Joe Panozzo, Rajat Aggarwal, David Hessel, Kerrie L. Forrest, Frank Technow, Josquin F. G. Tibbits, Radu Totir, Matthew J. Hayden, Jesse Munkvold, Hans D. Daetwyler
Summary: Crop growth models (CGM) can predict the performance of a cultivar in untested environments by sampling genotype-specific parameters. By integrating CGMs with whole genome prediction (WGP), the CGM-WGP model can predict the performance of new wheat genotypes more effectively, especially for unobserved traits and unrelated individuals. Future efforts should focus on calibrating CGM-WGP models using high-throughput phenotypic measures that are cheaper and less laborious to collect.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Neelesh Sharma, Bikram Pratap Banerjee, Matthew Hayden, Surya Kant
Summary: Advanced plant phenotyping techniques using different sensors for image acquisition and analysis are helping to deliver improved crop varieties faster.
Review
Agronomy
Vikash Kumar, Nikhil Raghuvanshi, Abhay K. Pandey, Abhishek Kumar, Emily Thoday-Kennedy, Surya Kant
Summary: Soil salinity is a major constraint for agriculture globally, impacting plant growth, soil properties, and soil microorganisms. Traditional approaches to address salinity problems are expensive and time-consuming. Halotolerant plant growth-promoting rhizobacteria (HT-PGPR) have been recognized for their beneficial effects in promoting plant growth and mitigating the negative impacts of salinity stress. HT-PGPR maintain ion homeostasis, increase nutrient availability, and produce secondary metabolites, osmoprotectants, growth hormones, and volatile organic compounds. Understanding and applying suitable HT-PGPR in agriculture can play a crucial role in reducing the adverse effects of salinity stress and improving crop productivity.
Article
Multidisciplinary Sciences
Emily Thoday-Kennedy, Adam M. Dimech, Sameer Joshi, Hans D. Daetwyler, David Hudson, German Spangenberg, Matthew Hayden, Surya Kant
Summary: This article describes a dataset of high-resolution visible-spectrum images of safflower plants, including diverse genotypes subjected to salt treatment. The dataset provides detailed image analysis parameters and manually collected biomass and leaf ion content data, which can be used for training image-based trait identification pipelines.
Article
Plant Sciences
Abdulqader Jighly, Anna Weeks, Brendan Christy, Garry J. O'Leary, Surya Kant, Rajat Aggarwal, David Hessel, Kerrie L. Forrest, Frank Technow, Josquin F. G. Tibbits, Radu Totir, German C. Spangenberg, Matthew J. Hayden, Jesse Munkvold, Hans D. Daetwyler
Summary: Integrating crop growth models with genomic prediction allows for more accurate simulation of genotype-specific parameters. The CGM-WGP model combines environmental information with genomic relatedness information to model genotype-specific parameters. It produces more heritable parameters with biologically realistic correlation structures compared to traditional CGM models. Additionally, CGM-WGP can achieve accurate predictions with smaller and less diverse reference data. The model also enables the selection of genotype-specific parameters, which are theoretically more independent and can be used to optimize flowering periods.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Review
Plant Sciences
Oluwaseun Olayemi Aluko, Surya Kant, Oluwafemi Michael Adedire, Chuanzong Li, Guang Yuan, Haobao Liu, Qian Wang
Summary: Nitrate (NO3-) transporters play a crucial role in plant nitrogen uptake, transport, assimilation, and remobilization, which impact nitrogen use efficiency (NUE). However, the influence of plant nutrients and environmental cues on NO3- transporter expression and activities has received less attention. This review critically examines the roles of NO3- transporters in N uptake, transport, and distribution, discusses their impact on crop productivity and NUE, especially when coexpressed with other transcription factors, and explores their functional roles in helping plants adapt to adverse environmental conditions. It also considers the potential impacts of NO3- transporters on the uptake and utilization efficiency of other plant nutrients, and suggests strategic approaches to improving NUE in plants.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Raj K. Pasam, Surya Kant, Emily Thoday-Kennedy, M. Adam Dimech, Sameer Joshi, Gabriel Keeble-Gagnere, Kerrie Forrest, Josquin Tibbits, Matthew Hayden
Summary: Soil salinity stress leads to significant yield losses in plants. To sustain yields in saline soils, it is important to identify crop varieties tolerant to salinity through genotyping and phenotyping. This study used digital phenotyping to investigate the growth response of a diverse collection of wheat accessions to salinity stress. The results showed that digital plant traits can be used to select salinity-tolerant accessions. A genome-wide association study identified novel genes and QTL for salinity tolerance. This study provides insights into the genetic basis of salinity tolerance and identifies potential candidate genes for future crop breeding.
Article
Agronomy
Emily Thoday-Kennedy, Bikram Banerjee, Joe Panozzo, Pankaj Maharjan, David Hudson, German Spangenberg, Matthew Hayden, Surya Kant
Summary: In this study, field trials were conducted to assess crop traits and potential uses of safflower. Unmanned aerial vehicle (UAV) multispectral data were used to estimate vegetation indices and model crop yield. The results showed that crop traits and performance were influenced by environmental conditions, particularly rainfall. UAV-multispectral derived data proved to be useful for phenotyping safflower and estimating key agronomical traits.
Editorial Material
Plant Sciences
Mirza Shoaib, Neelesh Sharma, Lars Kotthoff, Marius Lindauer, Surya Kant
TRENDS IN PLANT SCIENCE
(2023)
Article
Agronomy
Munmi Gogoi, Vikash Kumar, Shahin Ara Begum, Neelesh Sharma, Surya Kant
Summary: Rice is a crucial crop for global food security, but its production is threatened by various diseases. Early detection and treatment of rice diseases are essential to minimize yield losses. This study proposes a 3-stage CNN architecture with transfer learning and incorporates deep learning techniques to enhance rice disease detection.
