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1. Double effects of biochar in affecting the macropore system of paddy soils identified by high-resolution X-ray tomography

Author:
Yu, Xiuling; Lu, Shenggao
Source:
The Science of the total environment 2020 v.720 pp. 137690
ISSN:
0048-9697
Subject:
application rate,   etc   ; adverse effects; bamboos; biochar; computed tomography; corn straw; macropores; paddy soils; porosity; rice straw;     Show all 10 Subjects
Abstract:
... Biochars are widely used to improve soil macropore structures. However, the size-dependent effects of biochars in affecting macropore structure still remain unclear. In this study, the modification of soil macropore structure following biochar addition was investigated by high-resolution X-ray tomography (CT) and advanced data analytical methods. Quantification of soil macropore structure (>52 μm) ...
DOI:
10.1016/j.scitotenv.2020.137690

2. Leachable soil black carbon after biochar application

Author:
Braun, Melanie; Kappenberg, Arne; Sandhage-Hofmann, Alexandra; Lehndorff, Eva
Source:
Organic geochemistry 2020 v.143 pp. 103996
ISSN:
0146-6380
Subject:
application rate,   etc   ; agricultural soils; benzene; biochar; carbon; carboxylic acids; emissions; field experimentation; leaching; topsoil; weathering;     Show all 11 Subjects
Abstract:
... Black carbon (BC) enters soil via deposition of emissions and nowadays also via application of biochar. Recent studies indicate that a yet not quantified part of BC is lost from soil by leaching, which implies that BC exists in water-transportable form (so-called water-extractable BC; WEBC). We aim at quantifying the amount of WEBC in soil and at elucidating whether it relates to biochar applicati ...
DOI:
10.1016/j.orggeochem.2020.103996

3. Soil nitrogen regulation using clinoptilolite for grain filling and grain quality improvements in rice

Author:
Wu, Qi; Wang, Yanzhi; Chen, Taotao; Zheng, Junlin; Sun, Yidi; Chi, Daocai
Source:
Soil & tillage research 2020 v.199 pp. 104547
ISSN:
0167-1987
Subject:
application rate,   etc   ; amylose; filling period; grain quality; grain yield; nitrogen; rice; soil; taste; urea fertilizers; zeolites;     Show all 11 Subjects
Abstract:
... Controlled-release materials are widely used in agricultural production and are able to alter the supply of soil nitrogen, thus impacting production. However, changes in soil nitrogen supply exhibit a greater potential in the regulation of source-sink-translocation, which can subsequently have significant impacts on grain quality. In order to clarify the correlations among soil nitrogen supply, gr ...
DOI:
10.1016/j.still.2019.104547

4. Chemical and biological immobilization mechanisms of potentially toxic elements in biochar-amended soils

Author:
Bandara, Tharanga; Franks, Ashley; Xu, Jianming; Bolan, Nanthi; Wang, Hailong; Tang, Caixian
Source:
Critical reviews in environmental science and technology 2020 v.50 no.9 pp. 903-978
ISSN:
1547-6537
Subject:
application rate,   etc   ; analytical methods; biochar; clay; microbial activity; microorganisms; organic matter; pH; polluted soils; redox potential; remediation; synergism; toxic substances;     Show all 13 Subjects
Abstract:
... The application of biochars for the remediation of water and soils contaminated with potentially toxic elements (PTEs) has seen a recent growing interest. The mechanisms of chemical immobilization of PTEs with biochars in aqueous media have been well defined. However, immobilization mechanisms by which biochars interact with PTEs in soil matrix are more complex. The biological immobilization mecha ...
DOI:
10.1080/10643389.2019.1642832

5. Discovery of Novel Pyrazole–Quinazoline-2,4-dione Hybrids as 4-Hydroxyphenylpyruvate Dioxygenase Inhibitors

Author:
He, Bo; Wu, Feng-Xu; Yu, Liang-Kun; Wu, Lei; Chen, Qiong; Hao, Ge-Fei; Yang, Wen-Chao; Lin, Hong-Yan; Yang, Guang-Fu
Source:
Journal of agricultural and food chemistry 2020 v.68 no.18 pp. 5059-5067
ISSN:
1520-5118
Subject:
application rate,   etc   ; 4-hydroxyphenylpyruvate dioxygenase; active ingredients; enzyme inhibitors; herbicidal properties; hydrophobicity; inhibitory concentration 50; mesotrione; pyrazoles; weed control; weeds;     Show all 11 Subjects
Abstract:
... 4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) has been identified as one of the most significant targets in herbicide discovery for resistant weed control. In a continuing effort to discover potent novel HPPD inhibitors, we adopted a ring-expansion strategy to design a series of novel pyrazole–quinazoline-2,4-dione hybrids based on the previously discovered pyrazole–isoindoline-1,3-dio ...
DOI:
10.1021/acs.jafc.0c00051

6. Immobilization and sorption of Cd and Pb in contaminated stagnic anthrosols as amended with biochar and manure combined with inorganic additives

Author:
Hamid, Yasir; Tang, Lin; Hussain, Bilal; Usman, Muhammad; Rehman Hashmi, Muhammad Laeeq ur; Bilal Khan, Muhammad; Yang, Xiaoe; He, Zhenli
Source:
Journal of environmental management 2020 v.257 pp. 109999
ISSN:
0301-4797
Subject:
application rate,   etc   ; Anthrosols; additives; adsorption; biochar; cadmium; clay; field experimentation; fractionation; grain yield; harvesting; lead; models; phytomass; soil pH; wheat;     Show all 16 Subjects
Abstract:
... The present study evaluated the efficiency of pre-selected composite amendments (CA-1: biochar-lime-sepiolite-zeolite and CA-2: manure-lime-sepiolite) for immobilization and sorption of Cd and Pb in field and batch sorption experiments. The field experiment was performed in a co-contaminated clay purple soil (stagnic anthrosols). Along with a control experiment (T1), CA-1 and CA-2 were tested at d ...
DOI:
10.1016/j.jenvman.2019.109999

7. Lemna minor recovery potential after short-term exposure to sulfonylurea herbicide

Author:
Zaltauskaite, Jurate; Kaciene, Giedre
Source:
Acta physiologiae plantarum 2020 v.42 no.3 pp. 35
ISSN:
0137-5881
Subject:
application rate,   etc   ; Lemna minor; acute exposure; biomass; culture media; fronds; lipid peroxidation; malondialdehyde; photosynthesis; pigments; sulfonylurea herbicides;     Show all 11 Subjects
Abstract:
... We have investigated the effects of the sulfonylurea herbicide Sekator OD 375 on common duckweed (Lemna minor L.) and its potential to recover after the herbicide exposure. The plants were exposed to Sekator OD 375 for a 7-day period at the concentrations ranging from 5 to 100 µL L⁻¹, equivalent to 0.005–0.1 of field application rate. The treated plants were transferred to clean fresh growth mediu ...
DOI:
10.1007/s11738-020-3022-7

8. Study on factors affecting corn yield based on the Cobb-Douglas production function

Author:
Zhang, Qichen; Dong, Weihong; Wen, Chuanlei; Li, Tong
Source:
Agricultural water management 2020 v.228 pp. 105869
ISSN:
0378-3774
Subject:
application rate,   etc   ; corn; fertilizer application; grain yield; mineral fertilizers; models; pesticide application; planting; production functions; remote sensing; satellites; China;     Show all 12 Subjects
Abstract:
... This paper presents an analysis of the quantitative correlations between corn yield and its influencing factors in Daqing City, China by establishing a Cobb–Douglas production function model. The effective precipitation, corn planting area and chemical fertilizer and pesticide application rates were selected as the influencing factors of corn yield. Using the Cobb–Douglas production function model ...
DOI:
10.1016/j.agwat.2019.105869

9. The use of vegetation index via remote sensing allows estimation of soybean application rate

Author:
Souza, Fernando Henrique Queiroz; Martins, Pedro Henrique Alves; Dresch Martins, Tulio Henrique; Teodoro, Paulo Eduardo; Baio, Fabio Henrique Rojo
Source:
Remote sensing applications 2020 v.17 pp. 100279
ISSN:
2352-9385
Subject:
application rate,   etc   ; Sequoia; equations; leaves; normalized difference vegetation index; phenology; production costs; reflectance; remote sensing; soybeans; spray deposition; spray volume;     Show all 12 Subjects
Abstract:
... Currently, researchers have been looking for techniques to reduce the spray volume to guarantee a determined spray deposition at the lower third of the crop, reduce production costs, and increase the operational capacity of the applications. Is it possible to use vegetation indexes to estimate the spray application rate and deposition in soybean? This study aimed to develop an equation that indica ...
DOI:
10.1016/j.rsase.2019.100279

10. Further Development and Refinement of Interspecies Correlation Estimation Models for Current‐Use Dispersants

Author:
Bejarano, Adriana C.
Source:
Environmental toxicology and chemistry 2019 v.38 no.8 pp. 1682-1691
ISSN:
0730-7268
Subject:
application rate,   etc   ; dispersants; models; prediction; species diversity; toxicity; uncertainty;     Show all 7 Subjects
Abstract:
... Limited species diversity in aquatic toxicity data for most current‐use dispersants leads to uncertainties in hazard assessments, which impacts the broader discussion on dispersant use. Sufficient toxicity data are available for a re‐evaluation of previously developed dispersant–interspecies correlation estimation (ICE) models. These models increase species diversity because toxicity predictions f ...
DOI:
10.1002/etc.4452

11. Variable Rate Precision Irrigation Technology for Deficit Irrigation of Processing Tomato

Author:
Takács, Sándor; Bíró, Tibor; Helyes, Lajos; Pék, Zoltán
Source:
Irrigation and drainage 2019 v.68 no.2 pp. 234-244
ISSN:
1531-0353
Subject:
application rate,   etc   ; deficit irrigation; rain gauges; tomatoes; water distribution;     Show all 5 Subjects
Abstract:
... Centre pivot machines, with a variable rate irrigation (VRI) package that provides individual sprinkler control systems (VRI iS), are not common. This research focuses on how uniform the water distribution is under VRI control, and on the size of over‐ and under‐irrigated areas and volumes. Moreover, we wanted to know how wide transition zones are. We conducted different uniformity measurements us ...
DOI:
10.1002/ird.2299

12. Influence of glyphosate/dicamba application rate and timing on the control of glyphosate-resistant waterhemp in glyphosate/dicamba-resistant soybean

Author:
Hedges, Brittany K.; Soltani, Nader; Robinson, Darren E.; Hooker, David C.; Sikkema, Peter H.
Source:
Canadian journal of plant science 2019 v.99 no.3 pp. 371-374
ISSN:
1918-1833
Subject:
application rate,   etc   ; application timing; dicamba; glyphosate; glyphosate resistance; soybeans;     Show all 6 Subjects
Abstract:
... The objective of this study was to determine the effect of premixed glyphosate/dicamba application timing and rate on glyphosate-resistant (GR) waterhemp control. Glyphosate/dicamba applied to 5-, 15-, and 25-cm-tall plants, controlled GR waterhemp 81%, 73%, and 61% at 2 wk after application (WAA) and 61%, 68%, and 72% at 8 WAA, respectively. ...
DOI:
10.1139/cjps-2018-0101

13. Combined adjustment of pH and ultrasound treatments modify techno-functionalities of pea protein concentrates

Author:
de Oliveira, Ana Paula Hanke; Omura, Michele Harumi; Barbosa, Éverton de Almeida Alves; Bressan, Gustavo Costa; Vieira, Érica Nascif Rufino; Coimbra, Jane Sélia dos Reis; de Oliveira, Eduardo Basílio
Source:
Colloids and surfaces 2020 v.603 pp. 125156
ISSN:
0927-7757
Subject:
application rate,   etc   ; dispersibility; dispersions; emulsifying properties; energy; food industry; hydrodynamics; hydrophobicity; ingredients; pH; pea protein; protein concentrates; ultrasonic treatment; ultrasonics; zeta potential;     Show all 15 Subjects
Abstract:
... Plant proteins, and particularly pea proteins, have become more and more crucial as ingredient for food industries, due to ecological concerns, health benefits and even religious reasons. Although literature reports addressing the use of high intensity ultrasound (HUS) to improve tecnho-functionalities of pea proteins at different pH can be found, such studies involved HUS power/time combinations ...
DOI:
10.1016/j.colsurfa.2020.125156

14. Rice husk biochar influences runoff features, soil loss, and hydrological behavior of a loamy soil in a series of successive simulated rainfall events

Author:
Ahmadi, Seyed Hamid; Ghasemi, Hasan; Sepaskhah, Ali Reza
Source:
Catena 2020 v.192 pp. 104587
ISSN:
0341-8162
Subject:
application rate,   etc   ; biochar; laboratory experimentation; loam soils; losses from soil; rain; rain intensity; rainfall simulation; rice hulls; runoff; salinity; soil erosion;     Show all 12 Subjects
Abstract:
... As biochar affects soil hydrological processes, a detailed laboratory experiment was run to investigate the effect of three biochar application rates of 1, 2, and 3 kg m⁻² under three successive simulated rainfall events (three rounds) with about 10-day intervals on runoff rate, soil loss, salinity of runoff and percolated water of a loamy soil. Rice husk biochar produced in 600 °C for four hours ...
DOI:
10.1016/j.catena.2020.104587

15. Identifying the sources of nitrate in a small watershed using δ15N-δ18O isotopes of nitrate in the Kelan Reservoir, Guangxi, China

Author:
Jin, Zuxue; Wang, Jingfu; Chen, Jingan; Zhang, Ruixue; Li, Yong; Yaoting, Lu; He, Kangkang
Source:
Agriculture, ecosystems & environment 2020 v.297 pp. 106936
ISSN:
0167-8809
Subject:
application rate,   etc   ; isotope labeling; mineral fertilizers; nitrates; nitrogen; nonpoint source pollution; oxygen; pollution control; rain; soil; stable isotopes; sugarcane; surface water; watersheds; China;     Show all 15 Subjects
Abstract:
... China has one of the largest areas of agriculture and one of the highest application rates of chemical fertilizer in the world. Agricultural non-point source pollution has became important source of nitrogen (N) pollution of surface water. In this study, the δ¹⁵N and δ¹⁸O isotopes of nitrate as a tool were used to reveal the sources of nitrate in water bodies in the Nala watershed, at a sugarcane ...
DOI:
10.1016/j.agee.2020.106936

16. Efficacy of mulch and tillage options to reduce runoff and soil loss from asparagus interrows

Author:
Niziolomski, Joanna C.; Simmons, Robert W.; Jane Rickson, R.; Hann, Mike J.
Source:
Catena 2020 v.191 pp. 104557
ISSN:
0341-8162
Subject:
application rate,   etc   ; European Union; composts; crop production; disturbed soils; erosion control; harvesting; mulching; nitrates; rain; runoff; sediments; soil erosion; straw; straw mulches; tillage; topographic slope; water quality; England;     Show all 19 Subjects
Abstract:
... In the UK, conventional asparagus cultivation practices on sloping land, erodible soils and increased frequency of extreme rainfall events combine to promote runoff generation and soil loss, particularly from interrows. This instrumented field study investigated the interactive effect of mulch and shallow soil disturbance (working depth of 0.175 m) on reducing runoff and soil loss. Ten treatments ...
DOI:
10.1016/j.catena.2020.104557

17. Field measurement and modelling of chlorotoluron and flufenacet persistence in unamended and amended soils

Author:
Marín-Benito, Jesús M.; Carpio, M. José; Mamy, Laure; Andrades, M. Soledad; Sánchez-Martín, María J.; Rodríguez-Cruz, M. Sonia
Source:
The Science of the total environment 2020 v.725 pp. 138374
ISSN:
0048-9697
Subject:
application rate,   etc   ; Triticum; chlorotoluron; crop production; environmental factors; field experimentation; flufenacet; herbicide residues; metabolites; models; soil; soil amendments; soil treatment; spent mushroom compost; winter wheat;     Show all 15 Subjects
Abstract:
... The dissipation and persistence of two cereals herbicides, chlorotoluron and flufenacet, were studied in a field experiment including three replicated plots of unamended soil (S), soil amended with spent mushroom substrate (S + SMS), and soil amended with green compost (S + GC), during the winter wheat cultivation campaign. The SMS and GC organic residues were applied to the soil at rates of 140 o ...
DOI:
10.1016/j.scitotenv.2020.138374

18. Application of biogas slurry rather than biochar increases soil microbial functional gene signal intensity and diversity in a poplar plantation

Author:
Ren, Tingting; Yu, Xingye; Liao, Jiahui; Du, Yanning; Zhu, Yunjia; Jin, Long; Wang, Baoteng; Xu, Hanmei; Xiao, Wenya; Chen, Han Y.H.; Jin, Fengjie; Ruan, Honghua
Source:
Soil biology & biochemistry 2020 v.146 pp. 107825
ISSN:
0038-0717
Subject:
application rate,   etc   ; Populus; biochar; biogas; fertilizer application; forest ecosystems; genes; genetic variation; microorganisms; nutrients; organic fertilizers; plant growth; slurries; soil properties; species diversity; China;     Show all 16 Subjects
Abstract:
... Microbes play critical roles in the cycling of nutrients in forest ecosystems. Many studies have shown that the application of organic fertilizer can alter bacterial diversity; however, the responses of soil microbial functional genes to organic fertilization (particularly biogas slurry fertilization, or in combination with biochar) have not been elucidated as yet. We examined the responses of the ...
DOI:
10.1016/j.soilbio.2020.107825

19. Interactive effects of soil amendments (biochar and gypsum) and salinity on ammonia volatilization in coastal saline soil

Author:
Zhu, Hai; Yang, Jingsong; Yao, Rongjiang; Wang, Xiangping; Xie, Wenping; Zhu, Wei; Liu, Xiaoyuan; Cao, Yifan; Tao, Jianyu
Source:
Catena 2020 v.190 pp. 104527
ISSN:
0341-8162
Subject:
application rate,   etc   ; adsorption; agricultural land; ammonia; ammonium; biochar; diammonium phosphate; gypsum; losses from soil; nitrification; nitrogen; saline soils; salinity; soil amendments; soil salinity; urea; volatilization;     Show all 17 Subjects
Abstract:
... Ammonia (NH₃) volatilization is a major route of nitrogen (N) loss from soil, especially in saline soil. Biochar and gypsum are two important soil amendments that are widely used in coastal saline farmland. However, little is known about the interactive effects of soil amendments and salinity on NH₃ volatilization. In this study, five soil salinity levels, three N sources (urea, monoammonium phosp ...
DOI:
10.1016/j.catena.2020.104527

20. From seeds to plasma: Confirmed exposure of multiple farmland bird species to clothianidin during sowing of winter cereals

Author:
Lennon, Rosie J.; Peach, Will J.; Dunn, Jenny C.; Shore, Richard F.; Pereira, M. Glória; Sleep, Darren; Dodd, Steve; Wheatley, Christopher J.; Arnold, Kathryn E.; Brown, Colin D.
Source:
The Science of the total environment 2020 v.723 pp. 138056
ISSN:
0048-9697
Subject:
application rate,   etc   ; agricultural land; agricultural policy; blood sampling; cameras; clothianidin; farms; grains; liquid chromatography; risk assessment; seed treatment; seedlings; seeds; soil; sowing; tandem mass spectrometry; wild birds; winter;     Show all 18 Subjects
Abstract:
... Neonicotinoids are the largest group of systemic insecticides worldwide and are most commonly applied as agricultural seed treatments. However, little is known about the extent to which farmland birds are exposed to these compounds during standard agricultural practices. This study uses winter cereal, treated with the neonicotinoid clothianidin, as a test system to examine patterns of exposure in ...
DOI:
10.1016/j.scitotenv.2020.138056