Effects of plastic mulch film residues on soil-microbe-plant systems under different soil pH conditions

Chemosphere ◽  
2020 ◽  
pp. 128901
Author(s):  
Yin Liu ◽  
Qing Huang ◽  
Wen Hu ◽  
Jiemin Qin ◽  
Yingrui Zheng ◽  
...  
Keyword(s):  
Soil Ph ◽  
Plastic Mulch ◽  
Soil Microbe ◽  
Mulch Film ◽  
Ph Conditions

scholarly journals Insulative effect of plastic mulch systems and comparison between the effects of different plant types

2020 ◽  
Vol 5 (1) ◽  
pp. 317-324
Author(s):  
Kayla Snyder ◽  
Christopher Murray ◽  
Bryon Wolff
Keyword(s):  
Soil Moisture ◽  
Root Zone ◽  
Plastic Mulch ◽  
Root Zone Temperature ◽  
Tomato Plants ◽  
Black Film ◽  
Black And White ◽  
Mulch Film ◽  
Mulch Films ◽  
Zone Temperature

AbstractTo address agricultural needs of the future, a better understanding of plastic mulch film effects on soil temperature and moisture is required. The effects of different plant type and mulch combinations were studied over a 3.5-month period to better grasp the consequence of mulch on root zone temperature (RZT) and moisture. Measurements of (RZT) and soil moisture for tomato (Solanum lycopersicum), pepper (Capsicum annuum) and carrot (Daucus carota) grown using polyolefin mulch films (black and white-on-black) were conducted in Ontario using a plot without mulch as a control. Black mulch films used in combination with pepper and carrot plants caused similar RZTs relative to uncovered soil, but black mulch film in combination with tomato plants caused a reduction in RZT relative to soil without mulch that increased as plants grew and provided more shade. White-on-black mulch film used in combination with tomatoes, peppers or carrots led to a reduction in RZT relative to soil without mulch that became greater than the temperature of soil without mulch. This insulative capability was similarly observed for black mulch films used with tomato plants. Apart from white-on-black film used in combination with tomatoes, all mulch film and plant combinations demonstrated an ability to stabilize soil moisture relative to soil without mulch. RZT and soil moisture were generally stabilized with mulch film, but some differences were seen among different plant types.

Plastic mulch debris in rhizosphere: Interactions with soil-microbe-plant systems

2021 ◽  
pp. 151435
Author(s):  
Yin Liu ◽  
Wen Hu ◽  
Qing Huang ◽  
Jiemin Qin ◽  
Yingrui Zheng ◽  
...  
Keyword(s):  
Plastic Mulch ◽  
Soil Microbe ◽  
Rhizosphere Interactions

scholarly journals Zinc availability for corn grown on an oxisol amended with flue dust

2006 ◽  
Vol 63 (6) ◽  
pp. 558-563 ◽  
Author(s):  
Gláucia Cecília Gabrielli dos Santos ◽  
Ronaldo Severiano Berton ◽  
Otávio Antônio de Camargo ◽  
Mônica Ferreira de Abreu
Keyword(s):  
Soil Ph ◽  
Agricultural Soils ◽  
Extraction Methods ◽  
Environmental Risks ◽  
Zinc Availability ◽  
Scheme Design ◽  
Flue Dust ◽  
Free Ion ◽  
Ph Conditions ◽  
Zn Availability

The costs related to the construction and maintenance of industrial landfills, and the environmental risks that they may represent, have increased the interest of several types of industries in studying the possibility of applying residues to agricultural soils. This study evaluates the efficiency of flue dust as a zinc source for corn, and the zinc availability for corn evaluated by four methods. A greenhouse experiment carried out at Campinas, SP, Brazil, evaluated the effect of two zinc sources (flue dust and zinc sulphate), at three rates (5, 50 and 150 mg dm-3), in one soil (Rhodic Hapludox) under two pH conditions (5.0 and 6.0). The treatments were arranged in a randomized factorial scheme design with three replications. Zinc availability indexes were determined by the pH 7.3 DTPA, Mehlich-1, and Mehlich-3 methods. The free Zn2+ activity in soil solution was calculated by the MINTEQ computer model. The extraction methods and the activity of the free ion Zn2+ were equally reliable to evaluate zinc availability in the soil amended with flue dust. More than 70% of the total Zn present in the saturation extract was in the free ion form, and the remainder was mainly complexed to SO4(2-) and OH-, independent of soil pH. Flue dust is a zinc supplier to plants. All tested methods were efficient in evaluating Zn availability for corn, independently of soil pH.

scholarly journals USE OF HYDROGEN PEROXIDE AND PERCARBONATE TO TREAT CHLORINATED AROMATIC HYDROCARBON-CONTAMINATED SOIL

2014 ◽  
Vol 22 (1) ◽  
pp. 30-39 ◽  
Author(s):  
Marika Viisimaa ◽  
Anna Goi
Keyword(s):  
Hydrogen Peroxide ◽  
Soil Ph ◽  
Liquid Hydrogen ◽  
Natural Soil ◽  
Contaminant Removal ◽  
Contaminant Degradation ◽  
Solid Carrier ◽  
Liquid Carrier ◽  
Initial Ph ◽  
Ph Conditions

This study compared treatment methods that utilised a liquid carrier of hydrogen peroxide and a solid carrier, percarbonate, for p-dichlorobenzene, p-chloro-m-cresol and p-chlorothymol degradation in the soil. The targeted chlorinated aromatic contaminants in the soil degraded to a certain level when treated with the liquid hydrogen peroxide, but the removal efficacy was not dependent on the dosage. In contrast, an increase in the percarbonate dosage enhanced the contaminant removal. Supplementary ferrous iron was more effective for the treatment that employed the liquid carrier of hydrogen peroxide than the treatment employing the solid carrier. Although acidic pH conditions (initial pH of 2.5) favoured contaminant degradation using liquid hydrogen peroxide, the treatment involving percarbonate resulted in more effective contaminant removal without any soil pH preadjustment. Therefore, the solid carrier of hydrogen peroxide, percarbonate, was concluded to be an effective alternative to the liquid carrier, resulting in greater contaminant removal at natural soil pH values.

Sicklepod (Cassia obtusifolia) Control in Soybean (Glycine max) Grown in Rotations of 97- and 18-cm Row Spacings

Weed Science ◽  
1989 ◽  
Vol 37 (6) ◽  
pp. 748-752 ◽  
Author(s):  
David R. Shaw ◽  
Clyde A. Smith ◽  
Charles E. Snipes
Keyword(s):  
Glycine Max ◽  
Soil Ph ◽  
Control Program ◽  
Control Measures ◽  
Effective Control ◽  
Row Spacing ◽  
Split Application ◽  
The Third ◽  
Ph Conditions ◽  
Narrow Row

Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations. Alachlor plus metribuzin applied preemergence followed by either a postemergence-directed spray of metribuzin plus 2,4-DB or hand hoeing in 97-cm rows consistently reduced sicklepod populations. Reductions with 97-cm rows and preemergence-applied herbicides coupled with cultivation were not as great. At one location, using a split application of metribuzin preplant incorporated followed by preemergence with 18-cm rows reduced sicklepod populations if effective control measures had been used in wide rows the previous year, but the narrow-row treatments did not reduce sicklepod numbers if 18-cm rows had been used previously. Soil-applied metribuzin was more effective under high soil pH conditions, and sicklepod populations were reduced substantially whether the previous row spacing was 18 or 97 cm. After the third year, all plots were planted in 97-cm rows with no herbicides. No differences were found among sicklepod populations with any previous row spacing or sicklepod control program, indicating that, even with 3 yr of effective control, subsequent sicklepod populations were not affected.

CORN RESPONSE AND SOIL NITROGEN TRANSFORMATIONS FOLLOWING VARIED APPLICATION OF POULTRY MANURE TREATED TO MINIMIZE ODOR

1975 ◽  
Vol 55 (1) ◽  
pp. 29-34 ◽  
Author(s):  
K. A. MACMILLAN ◽  
T. W. SCOTT ◽  
T. W. BATEMAN
Keyword(s):  
Soil Ph ◽  
Dry Matter ◽  
Poultry Manure ◽  
Organic N ◽  
Nitrogen Transformations ◽  
Inorganic N ◽  
N Source ◽  
Soil Inorganic N ◽  
Ph Conditions ◽  
Soil Nitrogen Transformations

The response of corn (Zea mays L.) to manure that had been treated to minimize odor was investigated in a greenhouse trial with two silt loam soils of pH 4.2 and 7.1. Pretreatment of manure resulted in sources initially high in organic N and NH4+, but low in NO3−. One pretreatment gave high initial NO2− concentrations. In soil at pH 4.2, NH4+ was the major N source utilized by corn grown to 36 days, and dry matter yields were superior to those from soil at pH 7.1 where soluble NO3− was the major source of N. At pH 7.1, NO2− remained in significant quantities and decreased dry matter yields at 6 wk. Soil inorganic N concentrations varied between soils and was attributed to soil pH differences. Rate of NO2− disappearance decreased with increase in soil pH, and NH4+ accumulation increased with decrease in soil pH, whereas NO3+ production was favored by neutral pH conditions. Some NO3− production was observed in pH 4.2 soil after 36 days' incubation

scholarly journals Impact of plastic mulch film debris on soil physicochemical and hydrological properties

2020 ◽  
Vol 266 ◽  
pp. 115097 ◽  
Author(s):  
Yueling Qi ◽  
Nicolas Beriot ◽  
Gerrit Gort ◽  
Esperanza Huerta Lwanga ◽  
Harm Gooren ◽  
...  
Keyword(s):  
Plastic Mulch ◽  
Mulch Film
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