Developing a Crop Water Production Function for Alfalfa under Deficit Irrigation: A Case Study in Eastern Colorado

Sitterson, Jan M.; Andales, Allan A.; Mooney, Daniel F.; Capurro, M. C.; Brummer, Joe E.

doi:10.3390/agriculture13040831

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…For example, many of the macro-level issues related to water quantity and quality are consistent with previous research [40,41]. These observations are somewhat related to the additional issue observed related to irrigation rights [42]. However, there were items related to technology, generally, as well as the very specific challenge of slow Internet service in rural areas, which was somewhat unexpected.…”

Section: Study Implications For Research and Practicesupporting

confidence: 87%

Critical Issues Facing the Agriculture, Forestry, and Natural Resources Industries in the State of Georgia

Lamm,

Pike,

Griffeth

et al. 2023

Agriculture

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Throughout the United States, the agricultural, forestry, and natural resource industries are facing a multitude of challenges. While each industry is facing unique challenges on a national level, these challenges vary in scope and topic, and they are not necessarily generalizable to smaller geographic regions. Based on the socio-economic importance of agriculture in the state, along with five distinct geographic regions ranging from coastal to mountainous, this study compiled a comprehensive list of critical issues facing the agricultural, forestry, and natural resource industries in the state of Georgia. The study used the Delphi methodology with an expert panel composed of agricultural, forestry, and natural resource opinion leaders. Using a three-round consensus-building process, a total of 40 critical issues were identified with eight items receiving 100% agreement amongst the panelists. The final list of items were then analyzed using the constant comparative method to identify themes within the retained items. Six themes emerged based on the analysis, including (alphabetically) economic considerations, operations and infrastructure, policy, public perceptions, regulations, and workforce. The proposed themes, and subsumed critical issues, represent a heuristic framework within which to facilitate dialogue amongst agricultural, forestry, and natural-resource-related industries, as well as inform future research and praxis oriented efforts.

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Section: Study Implications For Research and Practicesupporting

confidence: 87%

Critical Issues Facing the Agriculture, Forestry, and Natural Resources Industries in the State of Georgia

Lamm,

Pike,

Griffeth

et al. 2023

Agriculture

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“…Alfalfa (Medicago sativa L.) is a forage crop that is excellent at producing great quantities of fresh matter with high nutritional content to produce milk and meat; however, this species is a semi-perennial crop requiring irrigation throughout the year. Alfalfa is a plant with the greatest water demand for growing and development, which makes it a crop species with low efficiency in water use [7,16].…”

Section: Introductionmentioning

confidence: 99%

Growth, Productivity, Yield Components and Seasonality of Different Genotypes of Forage Clover Lotus corniculatus L. under Varied Soil Moisture Contents

Xolocotzi-Acoltzi,

Pedroza-Sandoval,

García-De los Santos

et al. 2024

Plants

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This study aimed to evaluate the response to water deficit of different ecotypes and a variety of Lotus corniculatus on growth, productivity, and yield components, through seasonal times. A randomized block experimental design in a 2 × 5 factorial arrangement with three replicates was used. The first variation factor was soil moisture contents: field capacity (FC) was 26.5% ± 1.5, and water deficit (WD) was 85% of FC (22.5% ± 1.5); the second variation factor was the ecotypes identified with the codes 255301, 255305, 202700 and 226792 and of the variety Estanzuela Ganador. The best responses in plant cover and weight of accumulated fresh biomass were obtained in the ecotype 202700 under WD, with values of 1649.0 cm2 and 583.7 g plant−1, and 1661.2 cm2 and 740.1 g plant−1 in ecotype 255305 under FC. The leaf clover was the main component of yield during the summer and autumn seasons. Ecotype 226792 was tolerant to low temperatures during the winter season with better leaf development. Ecotype 202700 is the best option for forage clover production when water is limited, and ecotype 255305 when water is not resource-limited, but these preliminary conclusions need to be confirmed in field studies.

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Evaluation of the Long-Term Water Balance in Selected Crop Rotations with Alfalfa in a Soil-Heterogeneous Lowland Region of the Czech Republic

Placatová,

Papaj,

Fučík

et al. 2024

Agronomy

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The Czech Republic has diverse soil conditions, which cause notable differences in crop water balance (WB). To assess the long-term crop WB and crop water stress (CWS) intensity in rainfed conditions, four conventional eight- and ten-year crop rotations (CRs) with perennial forage (alfalfa), cereals, oilseeds, root crops and legumes were proposed for a heterogeneous lowland soil region (six texture classes) in eastern Bohemia. Two of the CRs were selected irrespective of the WB (eight-year, C-8; ten-year, C-10), and the other two were designated according to soil water resources and crop water requirements (CWRs) as water-saving (W-S) and water-demanding (W-D) for this region. All CRs had a negative WB on average (i.e., CWRs exceeded the available water resources), with varying degrees of CWS (categories 1 (low) to 4 (high)). The W-S CR reduced the WB deficit relative to the other CRs by omitting maize, sunflower and sugar beet and including sorghum, and expanded the proportion of the area not affected by CWS (categories 1–2) to 33% for predominantly loamy soils. In contrast, categories 1–2 in the C-8, C-10 and W-D CRs represented only 15%, 14% and 7% of the area, respectively. Other areas were significantly affected by CWS (categories 3–4) and showed a high risk of yield reduction. These results may help in implementing sustainable farming systems that consider environmental perspectives related to agricultural water use in Central Europe.

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Developing a Crop Water Production Function for Alfalfa under Deficit Irrigation: A Case Study in Eastern Colorado

Cited by 3 publications

References 31 publications

Critical Issues Facing the Agriculture, Forestry, and Natural Resources Industries in the State of Georgia

Critical Issues Facing the Agriculture, Forestry, and Natural Resources Industries in the State of Georgia

Growth, Productivity, Yield Components and Seasonality of Different Genotypes of Forage Clover Lotus corniculatus L. under Varied Soil Moisture Contents

Evaluation of the Long-Term Water Balance in Selected Crop Rotations with Alfalfa in a Soil-Heterogeneous Lowland Region of the Czech Republic

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