منابع مشابه
تأثیر شدت پادلینگ بر نگهداشت آب در خاک و میزان آب مصرفی برای پادلینگ در سه بافت خاک در اراضی شالیزاری استان گیلان
Puddling is the most common method of land preparation for lowland rice cultivation. The purpose of this study was to assess the influence of various intensities of puddling on percolation rate, water retention by soil and the amount of water used for different puddling intensities in three dominant soil textures of paddy fields in Guilan province. Undisturbed soil samples were taken from 3 dif...
متن کاملChemical Improvement of Clay Soils in situ Using Electrokinetic Processes
been widely researched as surface and deep soil treatment techniques (Figure 1). For certain practical situations, such as house foundations on expansive soil, mixing is not possible. Current research has shown that chemical treatment using a potential difference to transport chemical ions between bespoke electrodes can overcome such problems, whilst achieving the desired results. However, a ma...
متن کاملMechanisms of osmotic flow and volume change in clay soils
The mechanical behavior of compressible clay soils may be strongly influenced by physicochemical effects when concentrated pore fluids are introduced to the soil. Conceptual models have been used to explain the influence of pore fluid chemistry on the mechanical behavior of clays in a qualitative way. In this paper an alternate macroscopic description of the osmotic volume change behavior of a ...
متن کاملZinc Fertilization of Rice Grown on Clay Soils in Arkansas
Zinc (Zn) fertilizer is not currently recommended for rice grown on clay or clay loam soils in Arkansas. In 2003, eight field sites were established to evaluate the response of rice grown on clay soils to Zn fertilization. Shortly before or after seeding, granular Zn fertilizer was applied to the soil surface at rates of 0, 5, 10, and 20 lb Zn/acre. Tissue Zn concentration 10 to 14 days after f...
متن کاملAssessing strategies to mitigate phosphorus leaching from drained clay soils
Assessing mitigation of phosphorus (P) leaching from subsurface drainage systems is challenging due to high spatial and temporal variation in leaching. Mean measured total P leaching from a clayey soil in an eight-year study period (four replicates per treatment) was (kg ha-1 year-1): 1.21 from shallow autumn tillage (ShT), 0.84 from unfertilised fallow (UF), 0.81 from conventional autumn ploug...
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ژورنال
عنوان ژورنال: Netherlands Journal of Agricultural Science
سال: 1963
ISSN: 0028-2928
DOI: 10.18174/njas.v11i2.17561