Effects of plastic film residue and emitter flow rate on soil water infiltration and redistribution under different initial moisture content and dry bulk density

2021 ◽  
pp. 151381
Author(s):  
Cao Junhao ◽  
Chen Pengpeng ◽  
Gao Xiaodong ◽  
Zou Qifang ◽  
Fang Yunjie ◽  
...  
Keyword(s):  
Moisture Content ◽  
Bulk Density ◽  
Soil Water ◽  
Flow Rate ◽  
Initial Moisture Content ◽  
Water Infiltration ◽  
Plastic Film ◽  
Soil Water Infiltration

Effect of combined soil water and external load on soil compaction

Soil Research ◽  
2011 ◽  
Vol 49 (2) ◽  
pp. 135 ◽  
Author(s):  
M. A. Hamza ◽  
S. S. Al-Adawi ◽  
K. A. Al-Hinai
Keyword(s):  
Bulk Density ◽  
Soil Water ◽  
Soil Compaction ◽  
External Load ◽  
Field Capacity ◽  
Infiltration Rate ◽  
Soil Bulk Density ◽  
Soil Strength ◽  
Water Infiltration ◽  
Soil Water Infiltration

Reducing soil compaction is now an important issue in agriculture due to intensive use of farm machinery in different farm operations. This experiment was designed to study the influence of combinations of external load and soil water on soil compaction. Four soil water levels were combined with four external loads as follows: soil water—air-dry, 50% of field capacity, field capacity, and saturation; external load using different-sized tractors—no load (0 kg), small tractor (2638 kg), medium tractor (3912 kg), and large tractor (6964 kg). Soil bulk density, soil strength, and soil water infiltration rate were measured at 0–100, 100–200, and 200–300 mm soil depths. The 16 treatments were set up in a randomised block design with three replications. Combined increases in soil water and external load increased soil compaction, as indicated by increasing soil bulk density and soil strength and decreasing soil water infiltration rate. There was no significant interaction between soil water and external load for bulk density at all soil depths, but the interaction was significant for soil strength and infiltration rates at all soil depths. The ratio between the weight of the external load and the surface area of contact between the external load and the ground was important in determining the degree of surface soil compaction. Least compaction was produced by the medium tractor because it had the highest tyre/ground surface area contact. In general, the effects of soil water and external load on increasing soil bulk density and soil strength were greater in the topsoil than the subsoil.

scholarly journals Effect of Plastic Film Residue on Vertical Infiltration Under Different Initial Soil Moisture Contents and Dry Bulk Densities

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1346
Author(s):  
Junhao Cao ◽  
Pengpeng Chen ◽  
Yupeng Li ◽  
Heng Fang ◽  
Xiaobo Gu ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Moisture Content ◽  
Soil Water ◽  
Initial Moisture Content ◽  
Comprehensive Treatment ◽  
Burial Depth ◽  
Plastic Film ◽  
Wetting Front ◽  
Factors Affecting ◽  
Pollution Area

In arid and semi-arid regions, plastic film mulching can effectively improve crop yield, but with the increase of service life, a lot of residual plastic film (RPF) remains in the soil. The application of a RPF to a soil will alter soil moisture processes, and thus, affect the soil water distribution and its effectiveness. A quadratic regression orthogonal design was used to study the effects of initial moisture content (IMC), dry bulk density (DBD), residual plastic film content (RPFC), and the burial depth of RPF on the migration time of wetting front (MF), moisture content (MC), and accumulative infiltration (AI) of a test soil. It was found that IMC, DBD, and RPFC were the main factors affecting MC, MF, and AI, while the burial depth of RPF had no significant influence. The order of influence for the factors affecting MF was IMC > DBD > RPFC, while the order of influence for the factors affecting MC and AI was DBD > IMC > RPFC. RPFC was parabolic in relation to MF, MC, and AI, when it was in the range of 50–100 kg/hm2, while within the same range MC and AI reached a maximum and MF reached a minimum. The analysis of the interactive responses revealed that when the DBD was greater than 1.29g/cm3, the MF initially decreased and then increased with the increase of RPFC. When the RPFC was more than 100 kg/hm2, the MF initially increased and then decreased with the increase of the DBD. When the DBD was larger than 1.31 g/cm3, the AI initially increased and then decreased with the increase of RPFC. It was apparent that the RPF not only had a blocking effect on the wetting front, but also affected the water flow. When the RPFC was between 50 and 100 kg/hm2, the soil MC was significantly increased. It was suggested that the RPF pollution area should increase the mechanical recovery of plastic film, standardize the use and recycling of agricultural RPF, optimize the planting model, and establish a recyclable model for the treatment of RPF pollution, and it was proposed that the RPFC remaining after recovery of the RPF should be less than 50 kg/hm2.This study can prove the law of soil water movement in the residue film pollution area and provide reference and solution ideas for the comprehensive treatment of residue film pollution in farmland.

Improving soil physical fertility and crop yield on a clay soil in Western Australia

2002 ◽  
Vol 53 (5) ◽  
pp. 615 ◽  
Author(s):  
M. A. Hamza ◽  
W. K. Anderson
Keyword(s):  
Bulk Density ◽  
Soil Water ◽  
Western Australia ◽  
Crop Residues ◽  
Infiltration Rate ◽  
Water Infiltration ◽  
Soil Mixing ◽  
Water Stable Aggregates ◽  
Soil Water Infiltration ◽  
Gypsum Application

In the low rainfall area of Western Australia, clay soils with massive soil structure form a major part of the area sown to wheat. Yield increases on such soils have been poor in the last decade compared with those on other soil types. An experiment was conducted over 4 years (1997–2000) using a factorial combination of soil ripping to 0.4 m, application of commercial grade gypsum at 2.5 t/ha, and addition of complete nutrients based on soil test each year. All crop residues were retained after harvest and returned to the soil. The experiment was conducted in a wheat–field pea rotation at Merredin, WA. Soil water infiltration rate, soil strength, bulk density, water-stable aggregates, cation exchange capacity, and wheat yields were measured. Grain yields of wheat and field peas were increased by deep ripping, the addition of gypsum, or the addition of complete nutrients in some years. The main treatment effects on yield were additive, as significant interactions between the treatments on yield were seldom found. However, all the main treatments also significantly improved many of the soil physical properties related to crop growth. In 2000, 4 years after the treatments were applied, soil water infiltration rate was increased by more than 200%, strength of the topsoil decreased by around 1600 kPa, and soil bulk density decreased by 20%. Gypsum application increased water-stable aggregates, but soil mixing caused by deep ripping reduced them. The combination of soil ripping and gypsum application in the presence of complete nutrients and annual return of crop residues to the soil is suggested to improve crop grain yield and soil physical fertility on a range of Western Australian soils.

Comparative study of the impact of two mechanical perforation densities on the behavior of a sandy soil

2012 ◽  
Vol 8 (1) ◽  
pp. 37-48
Author(s):  
S. Chehaibi ◽  
K. Abrougui ◽  
F. Haouala
Keyword(s):  
Soil Water ◽  
Sandy Soil ◽  
Water Infiltration ◽  
Cone Penetration ◽  
Initial State ◽  
Soil Water Infiltration ◽  
Good Improvement ◽  
The Impact ◽  
Positive Effect ◽  
Resistance To Penetration

The effects of mechanical perforation densities by extracting soil cores through an aerator Vertidrain with a working width of 1.6 m and equipped with hollow tines spaced of 65 mm, were studied on a sandy soil of a grassy sward in the Golf Course El Kantaoui in Sousse (Tunisia). The mechanical aeration was performed at two densities: 250 and 350 holes/m2. The cone penetration resistance and soil water infiltration were measured. These parameters were performed at initial state before aeration (E0) and then on the 10th, 20th and 30th day after aeration. These results showed that perforation density of 350 holes/m2 had a positive effect on the soil by reducing its cone resistance to penetration compared to the initial state (Rp = 14.8 daN/cm2). At 5 cm depth the decrease in resistance to penetration was 34% and 43% on the 10th and 20th day after aeration, respectively. However, on the 30th day after aeration the soil resistance to penetration tended to grow and its value compared to the initial state decreased only by 21 and 26%, respectively, at 5 and 15 cm of depth only by 10% and 9% with 250 holes/m2 density. The soil water infiltration made a good improvement after aeration compared to the initial state. This parameter increased from 4.8 cm/h to 8.3, 10.9 and 13.1 cm/h with 250 holes/m2 density and to 10, 12.9 and 14.8 cm/h with 350 holes/m2 density on the 10th, 20th and 30th day following the aeration.

Effects of White Grubs on Soil Water Infiltration

2015 ◽  
Vol 44 (2) ◽  
pp. 134-139 ◽  
Author(s):  
A A Romero-López ◽  
E Rodríguez-Palacios ◽  
E Alarcón-Gutiérrez ◽  
D Geissert ◽  
I Barois
Keyword(s):  
Soil Water ◽  
Water Infiltration ◽  
White Grubs ◽  
Soil Water Infiltration

Observation and modeling on irregular purple soil water infiltration process

2017 ◽  
Vol 14 (6) ◽  
pp. 1076-1085 ◽  
Author(s):  
Dong-bing Cheng ◽  
Lin-yao Dong ◽  
Feng Qian ◽  
Bei Sun
Keyword(s):  
Soil Water ◽  
Water Infiltration ◽  
Purple Soil ◽  
Infiltration Process ◽  
Soil Water Infiltration

Effects of hillslope position on soil water infiltration and preferential flow in tropical forest in southwest China

2021 ◽  
Vol 299 ◽  
pp. 113672
Author(s):  
Chunfeng Chen ◽  
Xin Zou ◽  
Ashutosh Kumar Singh ◽  
Xiai Zhu ◽  
Wanjun Zhang ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Soil Water ◽  
Preferential Flow ◽  
Southwest China ◽  
Water Infiltration ◽  
Soil Water Infiltration

How the particle interaction forces determine soil water infiltration: Specific ion effects

2019 ◽  
Vol 568 ◽  
pp. 492-500 ◽  
Author(s):  
Wuquan Ding ◽  
Xinmin Liu ◽  
Feinan Hu ◽  
Hualing Zhu ◽  
Yaxue Luo ◽  
...  
Keyword(s):  
Soil Water ◽  
Particle Interaction ◽  
Water Infiltration ◽  
Interaction Forces ◽  
Specific Ion Effects ◽  
Soil Water Infiltration ◽  
Ion Effects
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