MAD is the maximum amount of water than can be removed from the soil, expressed as a fraction of total plant available water (PAW), before plant stress occurs (Snyder, 2014) and is used to determine when irrigation is needed to replace the volume of water removed from the soil and any ...
Discover the science behind soil water dynamics and learn how to model plant-available water for healthier, more productive crops.
The simple available water capacity (AWC) calculation from surface parameters were compared to vertical profiles of plant available water (PAW). The limit between the vadose and saturated zones was determined by comparison between the shrinkage and compaction pathways of the clay matrix. Patterns of ...
This study examines the impact of adding ASi into soils with varying textures on the soil–plant–water relations atmosphere continuum. We hypothesize that ASi, by enhancing the retention and flow of water within soils, may facilitate plant access to water during soil drying, the magnitude of whi...
each value of soil water potential was maintained for a long duration, so that photosynthetic capacity could acclimate (species with drought duration =∞ in Table1). For such species, we use the multivariate optimization model as described above (equation1). In other experiments, the progression ...
Even when there is zinc and iron present in the soil, they may not be available for plant uptake. As mentioned above, for zinc, only 1% is water-soluble (Zn2+), and more than 84% can be found fixed or converted to insoluble forms [4]. Therefore, the mechanisms described above ...
Plant water deficit is initiated as the crop demand for water exceeds the supply. The capacity of plants to meet the demand and thus avoid water deficit depends on their “hydraulic machinery.” This machinery involves firstly the reduction of net radiat
Arrhenius equation as a model for explaining plant responses to temperature and water stresses | Titel 来自 library.wur.nl 喜欢 0 阅读量: 21 收藏 报错 分享 全部来源 求助全文 library.wur.nl 相似文献ChemInform Abstract: Metal-Free Catalytic Hydrogenation. ChemInform is a weekly ing Service, ...
Based on the data and the selected equation, three descriptors of the established dose-response curve can be calculated: Plasticity Index (PI). This is the ratio of trait values at a predefined high and low value of the environmental factor of interest. In case of a ratio less than 1, th...
The availability of P in soil to plant is strongly time-dependent18,22,56. Definition of the availability of a soil P fraction to plant is also time-dependent22,25. Here, we provide some advices for the definition of plant available and unavailable P in soils derived by Hedley fractionation...