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1. Structural Optimization and Performance Evaluation of Blocking Wheel-Type Screw Fertilizer Distributor

Author:
Zha, Xiantao; Zhang, Guozhong; Han, Yuhang; Salem, Abouelnadar Elsayed; Fu, Jianwei; Zhou, Yong
Source:
Agriculture (Basel) 2021 v.11 no.3
ISSN:
2077-0472
Subject:
fertilizer rates; fertilizers,   etc   ; agriculture; computer software; industry;     Show all 5 Subjects
Abstract:
... In order to solve the problem where the amount of screw fertilizer distributor can only be adjusted by rotating speed and poor fertilization uniformity at low rotational speeds, a blocking wheel-type screw fertilizer distributor was designed. Single factor and L₉(3⁴) orthogonal simulation tests based on EDEM software were carried out to optimize the distributor variables at a speed of 20 r/min. Th ...
DOI:
10.3390/agriculture11030248

2. Farmers' risk preference and fertilizer use

Author:
QIAO, Fang-bin; HUANG, Ji-kun
Source:
Journal of integrative agriculture 2021 v.20 no.7 pp. 1987-1995
ISSN:
2095-3119
Subject:
fertilizer application; fertilizers,   etc   ; agriculture; cotton; production functions; risk; surveys; China;     Show all 8 Subjects
Abstract:
... This study examines the role of farmers' risk attitudes toward fertilizer use in cotton production in China. Contradicting previous studies, this paper theoretically shows that the relationship between farmers' risk aversion and fertilizer use is not always monotonic. Field survey data were collected to test this relationship using the Cobb–Douglas production function. Results suggest that when th ...
DOI:
10.1016/S2095-3119(20)63450-5

3. Recovery efficiency of applied and residual nitrogen fertilizer in tomatoes grown on sandy soils using the 15N technique

Author:
Jalpa, Laura; Mylavarapu, Rao S.; Hochmuth, George; Wright, Alan; van Santen, Edzard
Source:
Scientia horticulturae 2021 v.278 pp. 109861
ISSN:
0304-4238
Subject:
fertilizer rates; nitrogen fertilizers,   etc   ; coastal plains; nitrates; spring; volatilization; Florida;     Show all 7 Subjects
Abstract:
... Plant use efficiency of applied N is estimated to be around 50 % for most crops. In coastal plain sandy soils particularly, leaching along with volatilization in warmer climates may be a predominant pathway for N loss to the environment. A replicated field study to determine both crop N requirement and recovery efficiency of N (REN) in tomatoes (var. BHN 602) grown on sandy soils under a plastic-m ...
DOI:
10.1016/j.scienta.2020.109861

4. Transfer characteristic of fluorine from atmospheric dry deposition, fertilizers, pesticides, and phosphogypsum into soil

Author:
Cui, Si-fan; Fu, Yuan-zhou; Zhou, Bai-qin; Li, Jin-xin; He, Wen-yan; Yu, Ya-qi; Yang, Jin-yan
Source:
Chemosphere 2021 v.278 pp. 130432
ISSN:
0045-6535
Subject:
compound fertilizers; nitrogen fertilizers; phosphorus fertilizers,   etc   ; dry deposition; fluorine; fluoroglycofen; groundwater; industry; phosphogypsum; risk; soil;     Show all 11 Subjects
Abstract:
... Fluorine (F) is widely dispersed in the environment and frequently used in industry and agriculture with a high migration ability. Thus, it is essential to understand the leaching characteristic of F in soil from industry and agriculture sources. Several sources of F pollutants in soil, including fertilizers, pesticides, phosphogypsum, and atmospheric deposition, were selected to investigate leach ...
DOI:
10.1016/j.chemosphere.2021.130432

5. Customized fertilizers- An artefact in indian agriculture: A review

Author:
Vidyashree, B.S.; Arthanari, P. Murali
Source:
Agricultural reviews 2021 v.42 no.1 pp. 105-110
ISSN:
0976-0741
Subject:
fertilizer application; fertilizer technology; fertilizers,   etc   ; nitrogen; nutrient deficiencies; soil; soil fertility; zinc;     Show all 8 Subjects
Abstract:
... Indian agriculture is suffering from low crop productivity and poor sustainability as its land suffers from varying degrees of soil fertility depletion. There exists a wide gap between amount of nutrients removed by crops and added through fertilizers resulting in reduced yields is due to mineral deficiency. Besides, there are issues of poor fertilizer response and reduced fertilizer use efficienc ...
DOI:
10.18805/ag.R-1886

6. Simulation of Granular Organic Fertilizer Application by Centrifugal Spreader

Author:
Zinkevičienė, Raimonda; Jotautienė, Eglė; Juostas, Antanas; Comparetti, Antonio; Vaiciukevičius, Edvardas
Source:
Agronomy 2021 v.11 no.2
ISSN:
2073-4395
Subject:
fertilizer application; mineral fertilizers; organic fertilizers,   etc   ; agronomy; computer software; particle size; simulation models; soil;     Show all 8 Subjects
Abstract:
... There is no specialized equipment designed to spread granular cylindrical organic fertilizer in the soil. There are also no rational recommendations available on how to spread this type of fertilizer. Mineral fertilizer spreaders are most often used for spreading granulated organic fertilizer. However, these fertilizers are significantly different from mineral fertilizers. Due to these differences ...
DOI:
10.3390/agronomy11020247

7. Preparation and characterization of metal–tea polysaccharide complexes and their inhibition on α‐glucosidase

Author:
Fan, Minghao; Qian, Yilin; Yue, Wei; Yang, Yuqi; Zhang, Xin; Ma, Shuang; Xu, Ying; Wang, Dongfeng
Source:
Journal of food biochemistry 2021 v.45 no.5 pp. e13689
ISSN:
0145-8884
Subject:
mineral fertilizers,   etc   ; glycemic effect; pH; polysaccharides; tea;     Show all 5 Subjects
Abstract:
... The preparation method and the sources of metal elements may affect the activity of the metal–polysaccharide complex. In this study, four Fe–tea polysaccharide complexes were prepared and three tea polysaccharides (TPSs) from different seasons were extracted. Moreover, the binding mode of TPSs with internal and external metallic elements as well as their inhibitory effect on α‐glucosidase was expl ...
DOI:
10.1111/jfbc.13689

8. An analysis of antecedent causes of agricultural distress in Haryana

Author:
Siwach, Manoj; Reena,
Source:
Agricultural science digest 2021 v.41 no.1 pp. 28-34
ISSN:
0976-0547
Subject:
fertilizers,   etc   ; agricultural sciences; distress; infrastructure; India;     Show all 5 Subjects
Abstract:
... Haryana is an agricultural developed state of India but fluctuations in growth rate of agriculture and allied activities are very fast from last two decades. Some symptoms of agrarian distress have been observing in Haryana. In this paper a concrete analysis of prevalent situation to understand the antecedent causes of agriculture distress has been discussed. The study has been made intensive refe ...
DOI:
10.18805/ag.D-5135

9. Fertilizer sphericity measuring device based on equatorial and meridian circles

Author:
Zhang, Hongjian; Mu, Junlin; Liu, Shuangxi; Wang, Zhen; Chu, Guikun; Wang, Jinxing
Source:
Information processing in agriculture 2021 v.8 no.1 pp. 52-63
ISSN:
2214-3173
Subject:
fertilizers,   etc   ; computer vision; least squares; measuring devices;     Show all 4 Subjects
Abstract:
... Fertilizer sphericity is an important assessment index of appearance quality that affects the fertilization effect. A fertilizer sphericity measuring device based on machine vision was designed aimed at low precision and heavy workload of manual fertilizer measurement, and high cost and complicated operation of high precision measuring instruments. A fertilizer sphericity measuring method based on ...
DOI:
10.1016/j.inpa.2020.04.003

10. The undefined N source might be overestimated by 15N tracer trials

Author:
Quan, Zhi; Zhang, Xin; Fang, Yunting
Source:
Global change biology 2021 v.27 no.3 pp. 467-468
ISSN:
1354-1013
Subject:
fertilizers,   etc   ; ; Biological Sciences; global change; nitrogen; soil;     Show all 6 Subjects
Abstract:
... Based on data from previous ¹⁵N‐tracer trials, Yan et al. (Global Change Biology, 26, 191–199; 2020) accounted the sources of cereal crop nitrogen (N) from fertilizer inputs (from both current and previous seasons) and possible uptake of nonfertilizer N inputs, leaving a significant part of N source undefined. We argue that the undefined N source does not reflect the net change in soil N stock and ...
DOI:
10.1111/gcb.15371

11. A novel process on the recovery of zinc and manganese from spent alkaline and zinc-carbon batteries

Author:
Hu, Xianfeng; Robles, Astrid; Vikström, Tommy; Väänänen, Pekka; Zackrisson, Mats; Ye, Guozhu
Source:
Journal of hazardous materials 2021 v.411 pp. 124928
ISSN:
0304-3894
Subject:
fertilizer application; trace element fertilizers,   etc   ; alloys; circular economy; furnaces; manganese; manganese monoxide; phosphorus content; zinc;     Show all 9 Subjects
Abstract:
... Spent alkaline and zinc-carbon batteries contain valuable elements (notably, Zn and Mn), which need to be recovered to keep a circular economy. In this study, the black mass materials from those spent batteries are pyrometallurgically treated via a series of process steps in a pilot-scale KALDO furnace to produce an Mn–Zn product, a ZnO product, and an MnO (manganese monoxide) product, toward appl ...
DOI:
10.1016/j.jhazmat.2020.124928

12. Phosphorus species and chemical composition of water hyacinth biochars produced at different pyrolysis temperature

Author:
Bottezini, Luana; Dick, Deborah Pinheiro; Wisniewski, Alberto; Knicker, Heike; Carregosa, Ingred Suellen Carvalho
Source:
Bioresource technology reports 2021 v.14 pp. 100684
ISSN:
2589-014X
Subject:
fertilizer application; mineral fertilizers,   etc   ; Eichhornia crassipes; biochar; orthophosphates; phosphorus; pyrolysis; soil; soil treatment; temperature;     Show all 10 Subjects
Abstract:
... Soil application of biochar (BC) manufactured from nutrient-rich biomasses may be an effective strategy to reduce chemical fertilizer use. Chemical and molecular composition and P species of water hyacinth BCs produced at 400 (BC400), 500 (BC500), and 600 °C (BC600) were assessed by elemental, chemical and spectroscopic (FTIR, ¹³C and ³¹P NMR) analysis. From BC400 to BC600, the contribution of O/N ...
DOI:
10.1016/j.biteb.2021.100684

13. Role of Integrated Nutrient Management for Sustainable Maize Production

Author:
Gezahegn, Almaz Meseret
Source:
International journal of agronomy 2021 v.2021
ISSN:
1687-8167
Subject:
mineral fertilizers; organic fertilizers,   etc   ; agronomy; corn; costs and returns; nutrient management; nutrient uptake; soil productivity;     Show all 8 Subjects
Abstract:
... Boosting crop productivity can be attained through the application of inorganic fertilizer; however, safeguarding the environment for future generations is overbearing especially for continuous increase in the world population. Sustainable crop productivity might be attained through the judicious use of both organic and inorganic fertilizers. The substitution of parts of inorganic fertilizers with ...
DOI:
10.1155/2021/9982884

14. Association of asparagine concentration in wheat with cultivar, location, fertilizer, and their interaction

Author:
Malunga, Lovemore Nkhata; Ames, Nancy; Khorshidi, Ali Salimi; Thandapilly, Sijo Joseph; Yan, Weikai; Dyck, Adam; Waterer, John; Malcolmson, Linda; Cuthbert, Richard; Sopiwnyk, Elaine; Scanlon, Martin G.
Source:
Food chemistry 2021 v.344 pp. 128630
ISSN:
0308-8146
Subject:
fertilizer application; fertilizers,   etc   ; acrylamides; asparagine; cultivars; food chemistry; nitrogen; sulfur; wheat;     Show all 9 Subjects
Abstract:
... The need to produce wheat with low asparagine concentration is of great importance as a measure to mitigate acrylamide concentration in wheat-based products. The association of asparagine concentration in Canadian bread wheat with cultivar, growing location, fertilizer and their interaction were investigated. Wheat cultivars (8) were grown in 2 locations under 4 fertilizer treatments in triplicate ...
DOI:
10.1016/j.foodchem.2020.128630

15. Effects of different fertilization methods on ammonia volatilization from rice paddies

Author:
Wang, Cong; Sun, Huifeng; Zhang, Jining; Zhang, Xianxian; Lu, Limin; Shi, Lei; Zhou, Sheng
Source:
Journal of cleaner production 2021 v.295 pp. 126299
ISSN:
0959-6526
Subject:
fertilizer application; nitrogen fertilizers,   etc   ; ammonia; field experimentation; nitrogen; rice; volatilization; China;     Show all 8 Subjects
Abstract:
... Rice paddies are one of the most important anthropogenic sources of ammonia (NH₃) emissions. The seasonal cumulative NH₃–N loss accounts for 9%–60% of the total amount of applied nitrogen (N) fertilizer. Deep placement fertilization (DPF) can effectively improve N fertilizer use efficiency. However, unlike the conventional surface broadcasting fertilization method (CF), DPF technology can only be ...
DOI:
10.1016/j.jclepro.2021.126299

16. The fertilizer release into water and soil as the biodegradation process in the sustainable material enhancing the fertilizer efficiency

Author:
Chiaregato, Camila Gruber; Souza, Claudinei Fonseca; Faez, Roselena
Source:
Environmental technology & innovation 2021 v.22 pp. 101417
ISSN:
2352-1864
Subject:
fertilizer application; fertilizers,   etc   ; biodegradability; biodegradation; crystal structure; environmental technology; potassium nitrate; soil; sugarcane bagasse; sustainable agriculture;     Show all 10 Subjects
Abstract:
... Encouraging the development of sustainable agriculture is very important to reduce the negative effects of land overuse. Enhanced efficiency fertilizer combined with sustainable policies improves the effectiveness of fertilizer use. However, there is a gap in the literature to comprise how these materials behave concerning biodegradation, release in water, and soil, demanding more research. Compos ...
DOI:
10.1016/j.eti.2021.101417

17. Effects of phosphorus fertilizer application on phosphorus fractions in different organs of Cordia trichotoma

Author:
Kulmann, Matheus S. S.; Stefanello, Lincon O. S.; Schwalbert, Raí A.; Berghetti, Álvaro L. P.; Araujo, Maristela M.; Piccin, Rogerio; Gatiboni, Luciano C.; Tiecher, Tales; Ferreira, Paulo A. A.; Brunetto, Gustavo
Source:
Journal of forestry research 2021 v.32 no.2 pp. 725-732
ISSN:
1007-662X
Subject:
fertilizer application; phosphorus fertilizers,   etc   ; Cordia trichotoma; DNA; RNA; forestry; fractionation; lipids; phosphates; phosphorus; research; sandy soils;     Show all 12 Subjects
Abstract:
... The application of phosphorus (P) to soil can increase its availability to plants and alter P fractions in annual and perennial organs of Cordia trichotoma. If a portion of P accumulates in perennial organs in organic fractions it can be used in the next growth season, possibly decreasing plant dependence on P derived from soil fertilization. However, if P is preferentially accumulated in inorgani ...
DOI:
10.1007/s11676-020-01136-4

18. Fertilization Strategy Affects Production and Postproduction Performance of Petunia

Author:
Park, Jiwoo; Faust, James E.
Source:
HortTechnology 2021 v.31 no.2 pp. 217-224
ISSN:
1943-7714
Subject:
fertilizer rates; fertilizers,   etc   ; Petunia hybrida; greenhouse production; leaf area; liquids; nitrogen; plant growth; plant nutrition;     Show all 9 Subjects
Abstract:
... The amount of fertilizer applied during the commercial production of bedding plants has decreased in recent years because of increasing concerns about environmental impacts and the need to minimize production costs. However, reduced fertilization affects plant growth and flowering during production and in the postproduction environment. Plants grown with lower nutrient levels may perform satisfact ...
DOI:
10.21273/HORTTECH04764-20

19. Organic fertilizer use by smallholder farmers: typology of management approaches in northern Ghana

Author:
Daadi, Bunbom Edward; Latacz-Lohmann, Uwe
Source:
Renewable agriculture and food systems 2021 v.36 no.2 pp. 192-206
ISSN:
1742-1713
Subject:
fertilizer application; mineral fertilizers,   etc   ; agriculture; animal manures; composts; excreta; factor analysis; farmers; issues and policy; Ghana;     Show all 10 Subjects
Abstract:
... An understanding of the nexus of organic fertilizer use decisions that smallholder farmers take is essential to designing relevant policy to support adoption in sub-Saharan Africa. In this paper, we applied exploratory factor analysis (EFA) on observed farmer decisions to identify a set of common management approaches that farmers in the northeastern part of Ghana adopt in using organic fertilizer ...
DOI:
10.1017/S1742170520000228

20. Astilbe and Coneflower Growth as Affected by Fertilizer Rate and Substrate Volumetric Water Content

Author:
Bayer, Amanda
Source:
Horticulturae 2021 v.7 no.3
ISSN:
2311-7524
Subject:
fertilizer rates; slow-release fertilizers,   etc   ; Astilbe chinensis; Echinacea purpurea; irrigation; leaf area; volumetric water content;     Show all 7 Subjects
Abstract:
... Improved irrigation and fertilization practices, such as reduced applications, are needed to improve the sustainability of container plant production. The objective of this study was to assess growth of Visions astilbe (Astilbe chinensis ‘Visions’) and Mellow Yellow coneflower (Echinacea purpurea ‘Mellow Yellow’) grown at two controlled-release fertilizer (CRF) rates (100% or 50% of the medium bag ...
DOI:
10.3390/horticulturae7030052