This study analyzes the soil water infiltration characteristics under muddy irrigation and bio-organic fertilizer conditions in current context of rarely being used agricultural production combination with problems resource shortages low fertility arid semi-arid regions. An indoor one-dimensional column device was for studying effects four sediment concentration levels (ρ0: 0; ρ1: 4%; ρ2: 8%; ρ...

abstract- to study the effect of tree roots on increasing water infiltration in soil and also to determine and assess the coefficients of different infiltration models, some infiltration tests were performed in three tree plantation areas in badjgah, fars province with different soil textures (clay loam for pear plantation, sandy loam for grape plantation, loamy sand for pine trees). in each pl...

The farmland in Yinchuan is composed of sierozem soil, which characterized by high sand content and low organic matter content, resulting poor water-holding capacity weak soil structure. Humic acid a natural polymer amendment. It critical to study how humic affects water infiltration at the microlevel. A one-dimensional vertical experiment was conducted explore adding different amounts (0, 1%, ...

the manning roughness coefficient is an important parameter in the design and evaluation of furrow irrigation. despite its importance, estimation of this parameter for surface irrigation is very difficult, particularly in furrow irrigation. in this study, an evalue model was used to estimate the manning roughness coefficient in furrow irrigation. the model was based on volume balance and develo...

Objetivou-se no presente estudo realizar uma análise comparativa do comportamento da infiltração de água solo em um plantio melancia (Citrullus lanatus (Thunb.) Matsum & Nakai). A área localiza-se Projeto Assentamento Ipiranga, sudeste paraense. Na aplicou-se o delineamento experimental inteiramente casualizado, com a utilização dois aneis cilindros (25 e 50 cm diâmetros cada 30 altura). Os...

abstract infiltration is a significant process which controls the fate of water in the hydrologic cycle. the direct measurement of infiltration is time consuming, expensive and often impractical because of the large spatial and temporal variability. artificial neural networks (anns) are used as an indirect method to predict the hydrological processes. the objective of this study was to develop ...

Understanding phosphorus (P) transport from agricultural land is essential to the development of effective management strategies that reduce the impact of agriculture on inland water quality. This paper describes the development and application of a process based model describing P transfer down a farm scale irrigation drain. The model uses a volume routing equation combined with the Kostiakov ...

Film hole irrigation is an advanced low-cost and high-efficiency irrigation method, which can improve water conservation and water use efficiency. Given its various advantages and potential applications, we conducted a laboratory study to investigate the effects of soil texture, bulk density, initial soil moisture, irrigation depth, opening ratio (ρ), film hole diameter (D), and spacing on cumu...

The application of additives (e.g., wheat straw (WS) or rapeseed-oil residue (RR)) to soils is a common agronomic practice, used for improving soil water retention. Through a laboratory investigation, this study examined the effects of RR and WS on infiltration, evaporation, water distribution, and water retention. The results indicated that the migration rate of the wetting front, as well as t...