Nitrate leaching losses and the fate of 15N fertilizer in perennial intermediate wheatgrass and annual wheat — A field study

Huddell, Alexandra; Ernfors, Maria; Crews, Timothy E.; Vico, Giulia; Menge, Duncan N. L.

doi:10.1016/j.scitotenv.2022.159255

Cited by 12 publications

(4 citation statements)

References 46 publications

(55 reference statements)

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“…Through their continuous productivity, perennial crops can provide many benefits. These include (1) protecting soil from erosion (Ashworth et al., 2022), (2) reducing weed populations (Law et al., 2021; Zimbric et al., 2020), (3) preventing nutrient leaching (Culman et al., 2013; Huddell et al., 2022; Jungers et al., 2019), and (4) improving soil health by increasing soil organic matter, soil aggregate stability, and beneficial soil microbial communities (Crews & Rumsey, 2017; Culman et al., 2010; Duchene et al., 2020; Rakkar et al., 2023).…”

Section: Introductionmentioning

confidence: 99%

Forage harvest management impacts “Kernza” intermediate wheatgrass productivity across North America

Culman,

Pinto,

Pugliese

et al. 2023

Agronomy Journal

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Intermediate wheatgrass [IWG, Thinopyrum intermedium (Host) Barkworth & D.R. Dewey, trade name Kernza] is a widely adapted, cool‐season forage grass, actively bred for perennial grain production. Most of IWG's net primary productivity is directed to nonreproductive structures, so dual‐use strategies to harvest both grain and forage represent a potentially viable pathway to increase its productivity and profitability. We conducted a 3‐year trial at nine diverse environments across North America to evaluate grain and forage yields and forage nutritive value of an early IWG breeding line under contrasting forage harvest managements. These included control (no forage harvest), summer forage harvest immediately after grain harvest, and summer forage harvest with spring or fall forage harvests. Across all sites, IWG grain yields averaged 745, 296, and 221 kg ha−1 for the first, second, and third years, respectively. Grain yields were influenced more by stand age than site. Summer forage mass after grain harvest averaged 6.0, 4.5, and 5.7 Mg ha−1 respectively for the first 3 years. Forage mass was less influenced by stand age, and more by site and forage harvest frequency. Fall forage harvest increased grain yields while spring forage harvests decreased grain yields and both treatments increased total relative feed nutritive values. Collectively, our results demonstrate that harvesting forage can improve both grain yield and forage nutritive values. Farmers growing IWG as a perennial grain can benefit from dual‐use management by harvesting both grain and forage.

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Section: Introductionmentioning

confidence: 99%

Forage harvest management impacts “Kernza” intermediate wheatgrass productivity across North America

Culman,

Pinto,

Pugliese

et al. 2023

Agronomy Journal

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“…Ndff value refers to the contribution rate of 15 N absorbed by plant organs from fertilizers to the total N content in all organs and re ects the ability of plant organs to absorb and transfer fertilizer 15 N (Mariotti 1984; Zhang et al 2022b). According to the relevant studies, the absorption of 15 N by plants and the Ndff value of all organs show the trend of increasing with the increase of N application level after the addition of soil conditioners (Huddell et al 2023). According to the results of this study, the application of FTHSB to the treatment of leaves and stems provides a signi cantly stronger ability to transfer NH 4 + -N, NO 3 − -N and CO(NH 2 ) 2 -N than the treatment without FTHSB.…”

Section: Effects Caused By the Application Of Fthsb With Different Fo...mentioning

confidence: 99%

Tracing N utilization and distribution during development of grape seedlings by applying different forms of 15N labeled fertilizer with fruit tree hole storage brick

Yao,

jia,

Zhang

et al. 2024

Preprint

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Background and aims Application of soil conditioner can promote the NUE in plants by increasing N retention in soil as an effective method to reduce chemical fertilizer consumption and environmental pollution. Methods We have prepared fruit tree hole storage brick (FTHSB) suitable for perennial fruit trees using natural nanomaterials, vermiculite and montmorillonite, and organic fertilizers, then recommended a new fertilization strategy combining N fertilizer and FTHSB based on subsurface drip irrigation. Results Application of FTHSB significantly increased the amount of dry matter in each organ of grape (Vitis vinifera L.) seedlings, significantly promoted fine root growth of soil layer in the range of 15–30 cm, reduced the leaching loss of 15N to deep soil and significantly improved the use efficiency of 15N. In the treatment without FTHSB, NO3−-N is better than NH4+-N and CO(NH2)2-N in terms of plant growth index of soil layer in the range of 15–30 cm and 15N use efficiency in plants. After the application of FTHSB, CO(NH2)2-N is better than NO3−-N and NH4+-N according to the above indicators. Conclusions In general, compared with ammonium and nitrate N FTHSB had the strongest adsorption capacity for amide N, so the N content of the soil in the vicinity of the FTHSB with amide N was also the highest, which improved the dry matter of all organs, the growth of the fine roots and the efficiency of N utilization in the grape seedlings.

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“…Utilization of water that is unavailable to annual crops can reduce nutrient losses to surface water and groundwater. Research has shown that intermediate wheatgrass grown for grain can reduce NO 3 leaching to groundwater—thus protecting rural drinking water sources while generating an economic return for farmers (Huddell et al., 2023; Jungers et al., 2019; Reilly et al., 2022). Similarly, Randall and Mulla (2001) showed that subsurface field drainage volume and nitrate N losses were 30–50 times higher beneath annual crops compared with perennial crops.…”

Section: Current State Of Perennial Agricultural Landscapesmentioning

confidence: 99%

Adapting perennial grain and oilseed crops for climate resiliency

et al. 2023

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Climate change is threatening the status quo of agricultural production globally.Perennial cropping systems could be a useful strategy to adapt agriculture to a changing climate. Current and future perennial row crop systems have many and varied applications and these systems can respond differently than annuals to agricultural challenges resulting from climate change, such as shifting ranges of plant, pathogen, and animal species and more erratic weather patterns. To capitalize on attributes of Abbreviations: GHG, greenhouse gas; TLI, the intermediate wheatgrass population; UAS, unmanned aerial systems.

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Nitrate leaching losses and the fate of 15N fertilizer in perennial intermediate wheatgrass and annual wheat — A field study

Cited by 12 publications

References 46 publications

Forage harvest management impacts “Kernza” intermediate wheatgrass productivity across North America

Forage harvest management impacts “Kernza” intermediate wheatgrass productivity across North America

Tracing N utilization and distribution during development of grape seedlings by applying different forms of 15N labeled fertilizer with fruit tree hole storage brick

Adapting perennial grain and oilseed crops for climate resiliency

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