Results 21 to 30 of about 6,155,597 (302)
Agronomy, 2020 Returning crop straw to soil can potentially improve soil health and crop production, facilitating sustainable agriculture. However, the effects of straw incorporation with various tillage management techniques combined with nitrogen (N) regimes on crop ...
Pengxiang Sui +11 more
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Frontiers in Earth Science, 2022 Different strategies of water uptake by roots in a semi-arid desert are one way that plants adapt to the water-limited environment. In this study, stable isotopes of δ18O were used to analyze the variability in water sources of the native species ...
Haijiao Wang +6 more
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Distribution of Roots of Polynomial Congruences [PDF]
International Journal of Mathematics and Mathematical Sciences, 2007 For a primep, we obtain an upper bound on the discrepancy of fractionsr/p, whererruns through all of roots modulopof all monic univariate polynomials of degreedwhose vector of coefficients belongs to ad-dimensional boxℬ. The bound is nontrivial starting with boxesℬof size|ℬ|≥pd/2+ɛfor any fixedɛ<0and sufficiently largep.
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Root Vertex Valency Distributions of Rooted Maps and Rooted Triangulations
European Journal of Combinatorics, 1994 We obtain the asymptotic distributions of root vertex valencies for rooted maps and rooted triangulations on general surfaces. We show that the asymptotic distributions are independent of the surface.
Zhicheng Gao, L. Bruce Richmond
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Revista Brasileira de Ciência do Solo, 2008 As raízes, geralmente, são os primeiros órgãos das plantas a apresentarem sintomas de deficiência de B. Plantas de grande porte são difíceis de serem manipuladas experimentalmente a fim de diagnosticar os efeitos das deficiências minerais em seus ...
Leandro Glaydson da Rocha Pinho +4 more
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Range Unit-Root (RUR) Tests: Robust against Nonlinearities, Error Distributions, Structural Breaks and Outliers [PDF]
, 2006 Since the seminal paper by Dickey and Fuller in 1979, unit-root tests have conditioned the standard approaches to analysing time series with strong serial dependence in mean behaviour, the focus being placed on the detection of eventual unit roots in an ...
Sipols, Ana E. +5 more
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A Processes‐Based Dynamic Root Growth Model Integrated Into the Ecosystem Model
Journal of Advances in Modeling Earth Systems, 2019 Plant roots play a critical role in regulating the uptake of soil water and nutrients. Shifts in root growth and biomass distribution resulting from climate change can impact ecosystem water and carbon cycling.
Haibo Lu, Wenping Yuan, Xiuzhi Chen
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Agronomy, 2021 Different methods have been proposed for in situ root-length density (RLD) measurement. One widely employed is the time-consuming sampling of soil cores or monoliths (MO).
Tábata Aline Bublitz +5 more
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The dynamics of root meristem distribution in the soil [PDF]
Plant, Cell & Environment, 2010 Plants must develop efficient root architectures to secure access to nutrients and water in soil. This is achieved during plant development through a series of expansion and branching processes, mostly in the proximity of root apical meristems, where the plant senses the environment and explores immediate regions of the soil.
Dupuy, L. +3 more
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Different root growth patterns in tomato seedlings grown hydroponically under an electric field [PDF]
, 2013 Electric fields can determine changes at morphological and physiological levels in plants. In this study, seedlings of Solanum lycopersicum L., grown hydroponically in a floating system, were exposed to a DC 12.0 V m–1 electric field (EF).
SCOPA, Antonio +7 more
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