Exploitation of neighbouring subsoil for nutrient acquisition under annual-perennial strip intercropping systems
نویسندگان
چکیده
Little is known how the deep root systems of perennial crops contribute to deeper and better resource use when intercropped with annuals in arable fields. Therefore, we aimed at measuring capacity deep-rooted perennials, alfalfa ( Medicago sativa L.) curly dock Rumex crispus access nutrients located under neighboring 1.0 2.5 m soil depth. Alfalfa were able tracer sources 15 N Cs) placed a distance farther than 0.4 annual crop strips. As result, reliance on layers for nutrient uptake by grown borders became greater compared mid-strips. Combination an cereal (winter rye) legume (alfalfa) having contrasting exhibited higher complementarity intercroppings more similar or absence legumes. Our results demonstrated that annuals, can induce vertical niche complementarity, especially layers. This was assumed be due differences rooting depth activity components, however, magnitude effects depended choice combinations, types tracers used study. • Perennials strips up Deep visible neighbouring plants separately plants. Intercroppings systems.
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ژورنال
عنوان ژورنال: Agriculture, Ecosystems & Environment
سال: 2022
ISSN: ['0167-8809', '1873-2305']
DOI: https://doi.org/10.1016/j.agee.2022.108106