ArticleFrontiers in plant science2025
Regulation of alfalfa growth, water and nitrogen utilization and distribution in arid region of Northwest China by optimizing irrigation method.
Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Effects of Combined Application of Organic and Chemical Fertilizers on Nutrient Accumulation and Utilization Efficiency of Alfalfa.Plants (Basel, Switzerland) · 2026Article
- Evapotranspiration, single and dual-crop coefficients, and water, radiation and nutrient use efficiency indicators in irrigated protein-rich plant species in semi-arid conditions.Journal of the science of food and agriculture · 2026Article
- Alternate partial root zone subsurface drip irrigation increases alfalfa water production function by increasing hay yield, rather than actual crop evapotranspiration.Frontiers in plant science · 2026Article
- Soil environment, physiological metabolism and ornamental traits of Zinnia response to water and nitrogen combination in a cold and arid environment.Frontiers in plant science · 2026Article
- Optimizing irrigation and fertilization management enhances alfalfa seed yield components through improved soil nutrient availability and leaf photosynthetic efficiency.Frontiers in plant science · 2025Article
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Authors and funding
6 authors.
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Abstract
The water and nitrogen use efficiency of alfalfa is very low in the arid region of Northwest China currently. In this field experiments in 2022 and 2023, the effects of traditional flood irrigation (FI-12, 1200 mm; FI-8, 880 mm), sprinkler irrigation (SI-8, 880 mm; SI-5, 520 mm), and subsurface drip irrigation (DI-5, 520 mm; DI-8, 880 mm)) on alfalfa yield, water use efficiency (WUE), and nitrogen use efficiency (NUE) were studied. The results showed that the DI and SI treatments, especially DI-5, increased alfalfa seed yield by increasing the number of inflorescences and pods compared with the FI treatments. The DI and SI treatments, especially DI, reduced water loss during the first two crops in each growing season compared with the FI treatments, improving the WUE. The DI treatments had the lowest root/shoot ratio (R/S), which facilitated the distribution of photosynthetic products to the reproductive organs and inhibited the overgrowth of the root system. The small R/S in the late growth stage of the DI-5 treatment also helped to achieve high WUE. Besides, the DI treatments also had the largest root length density, which promoted the uptake and utilization of water and nitrogen by alfalfa. The DI treatments increased the nitrogen accumulation of plants, and reduced the soil nitrate (NO
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