May 2022最新文献

Improving refining efficiency with deflocculation 通过反絮凝提高精炼效率

May 2022 Pub Date : 2022-06-01 DOI: 10.32964/tj21.5.259

D. Anderson, Len Schuster

引用次数: 0

Web instability in the open draw and the impact on paper machine efficiency 卷筒纸在开拔时不稳定，影响纸机效率

May 2022 Pub Date : 2022-06-01 DOI: 10.32964/tj21.5.271

Fred J. Parent, Daniel Ricard, J. D. Mcdonald, R. Kerekes

引用次数: 0

Development of paper quality parameter measurement in China 纸张质量参数测量在中国的发展

May 2022 Pub Date : 2022-06-01 DOI: 10.32964/tj21.5.247

L. Hu, Jin Ma

{"title":"Development of paper quality parameter measurement in China","authors":"L. Hu, Jin Ma","doi":"10.32964/tj21.5.247","DOIUrl":"https://doi.org/10.32964/tj21.5.247","url":null,"abstract":"Paper quality parameters are important indicators of paper production, such as paper moisture, basis weight, ash content, strength, and so on. This study focuses on the online measurement methods and development of paper basis weight, moisture, and ash measuring. First, the measurable paper parameters and quality control system products in China are analyzed. Then, the basis weight measurement methods, accuracy, and development are given in the range of 10~1000 g/m2. Third, the distinction between infrared and microwave methods for moisture measurement is discussed. Finally, the ash measurement is introduced. Production and consumption of tissue paper in China have continually increased during the past decade. Near-infrared light technology is mature for the measurement of paper parameters in the range of 10~200 g/m2 basis weight. However, the near-infrared online measurement of tissue paper is not widely used, and few tissue paper lines are equipped with this type of quality control system in China. Therefore, technology for near-infrared measurement of basis weight has a great potential market in the field of tissue paper production. This article analyzes the future development trend of near-infrared light in tissue paper basis weight measurement and summarizes the difficulties in near-infrared light measurement of tissue paper basis weight.","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"47 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120893039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-furrow application of arbuscular mycorrhizal fungi propagules enhanced yields, plant vigor, and biomass accumulation of soybeans (Glycine max) and maize (Zea mays) 丛枝菌根真菌在沟内施用可提高大豆(Glycine max)和玉米(Zea mays)的产量、植株活力和生物量积累。

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3613

R. M. Pedroso, C. Medeiros, Alexandre Ometto, Viviane Paes, Eduardo Figueiredo de Andrade, S. Inman, J. R. Silva, G. M. Pedroso

{"title":"In-furrow application of arbuscular mycorrhizal fungi propagules enhanced yields, plant vigor, and biomass accumulation of soybeans (Glycine max) and maize (Zea mays)","authors":"R. M. Pedroso, C. Medeiros, Alexandre Ometto, Viviane Paes, Eduardo Figueiredo de Andrade, S. Inman, J. R. Silva, G. M. Pedroso","doi":"10.21475/ajcs.22.16.05.p3613","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3613","url":null,"abstract":"Highly weathered soils are commonly found in most crops cultivation sites of Brazil, such as maize and soybean. They impose many challenges for plant growth, such as reduced nutrient availability. Hyphal networks, resulting from mutualistic symbiotic associations between plants and arbuscular mycorrhizal fungi (AMF), could be a viable alternative to improve plant growth and nutrition by enhancing root access to a significantly larger soil surface area, increasing nutrient availability and uptake. Thus, we aimed at evaluating in-furrow applications of propagules from four AMF species to enhance soybeans and maize yields, plant vigor, plant height, and biomass accumulation. Thereby, four soybeans and six maize field trials were conducted in the 2018/2019 growing season in Brazil in different environments. Two EndoMaxx SC rates (150 or 300 ml ha-1) were tested, with or without P fertilization during sowing. Results indicated that both rates positively impacted all variables analyzed, regardless of crop species and P fertilization. Even in the absence of P fertilization, AMF-colonized soybeans and maize treatments were either significantly higher or similar to the untreated control. Moreover, crop yield was 2.6-9.1% more when the highest rate of AMF was applied in combination with P fertilization compared to the P-fertilized untreated control. In-furrow EndoMaxx SC applications are an alternative to increase the sustainability of soybean and maize production, especially in a scenario, in which yield must be maximized in the coming decades to supply food for the exponentially growing population without expanding cultivations to new sites.","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130429953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nitrogen fertilization strategies with protected urea for tropical grasses in an integrated crop-livestock system 在作物-牲畜综合系统中，保护尿素对热带牧草的氮肥策略

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3472

D. M. Barros, R. Rodrigues, C. Costa, A. C. Andrade, Giovanne O. C. Sousa, L. S. Fernandes, Raphael da Silva Ramos, R. P. Lana, Francirose Shigaki, Jocélio Araújo dos Santos, Juliana R. L. Lima, Jefferson Auteliano Carvalho Dutra, K. Costa, A. D. Jesus, F. N. S. Santos

{"title":"Nitrogen fertilization strategies with protected urea for tropical grasses in an integrated crop-livestock system","authors":"D. M. Barros, R. Rodrigues, C. Costa, A. C. Andrade, Giovanne O. C. Sousa, L. S. Fernandes, Raphael da Silva Ramos, R. P. Lana, Francirose Shigaki, Jocélio Araújo dos Santos, Juliana R. L. Lima, Jefferson Auteliano Carvalho Dutra, K. Costa, A. D. Jesus, F. N. S. Santos","doi":"10.21475/ajcs.22.16.05.p3472","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3472","url":null,"abstract":"The intercropping of corn and grass allows for the production of grains, and simultaneously, the recuperation and renovation of pastures. This study aimed to evaluate the effects of N doses on the yield, structure, chemical-bromatological characteristics, and the N use efficiency of Brachiara brizantha cultivars in an integrated crop-livestock system. The experimental design was completely randomized, with four replications, in a slip-plot scheme. The plots were formed of two grass plants, Marandu and Paiaguás, intercropped with corn and subplots composed of nitrogen doses (70, 100, and 130 kg N ha-1). During the system’s establishment (1st cycle), the Paiaguás grass presented higher values for all morphogenic and structural characteristics and higher forage yield when compared to Marandu grass. After the corn harvest, the interaction effect of the N doses and the cultivars for the foliar structure emergence and the number of living leaves was observed. The variables foliar elongation rate, stem elongation rate, and phyllochron were not influenced by any of the investigated factors (P>0.05). The highest DM content was obtained with the application of 100 kg ha-1 of N, whereas, for the other chemical characteristics, there was only an effect among the cultivars. Paiaguás grass exhibited the highest levels of NDF, ADF, lignin, and MM. CP levels were not influenced by the factors studied. Marandu grass and the use of 70 kg N ha-1 are recommended for intercropping with corn","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130732878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seed inoculation with arbuscular mycorrhizal fungi propagules enhanced yield, biomass accumulation, and plant vigor of soybeans (Glycine max) and maize (Zea mays) 丛枝菌根真菌繁殖体接种种子可提高大豆(Glycine max)和玉米(Zea mays)的产量、生物量积累和植株活力。

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3612

R. M. Pedroso, C. Medeiros, Alexandre Ometto, Viviane Paes, Eduardo Figueiredo de Andrade, S. Inman, J. R. Silva, G. M. Pedroso

{"title":"Seed inoculation with arbuscular mycorrhizal fungi propagules enhanced yield, biomass accumulation, and plant vigor of soybeans (Glycine max) and maize (Zea mays)","authors":"R. M. Pedroso, C. Medeiros, Alexandre Ometto, Viviane Paes, Eduardo Figueiredo de Andrade, S. Inman, J. R. Silva, G. M. Pedroso","doi":"10.21475/ajcs.22.16.05.p3612","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3612","url":null,"abstract":"Hyphal networks, resulting from mutualistic symbiotic associations between plants and arbuscular mycorrhizal fungi (AMF), improve plant growth and nutrition by enhancing root access to a significantly larger soil surface area, which increases nutrient availability and translocation within the plant-host. Considering the limitations imposed by the low nutrient availability commonly found in the highly weathered soils of Brazil, the positive effects of AMF could benefit the production of important plant species, such as soybeans and maize. Multiple trials were thus carried out to investigate growth and yield responses of two major crops of Brazil, soybeans and maize, in response to mycorrhizal symbiosis originated from the inoculation of a mixture of four AMF species at seed treatment. Five soybean and seven maize field trials were conducted in the 2018/2019 growing season in different regions of Brazil. Two product rates (10 or 20 ml ha-1) were tested under two P fertilization levels (0% and 100%). We observed that plant growth-promoting effects were observed in response to AMF inoculation in both crops and both rates (10 and 20 ml ha-1 and regardless of P fertilization). Moreover, treatments inoculated with AMF propagule, but not mineral fertilized with P, presented growth improvements either similar or better than the untreated P-fertilized control. Both crops yield was increased when the highest product rate was applied in combination with P fertilization relative to the P-fertilized untreated control. Our results show that EndoFuse is an alternative to facilitate important crops cultivation.","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124248269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prognosis of growth and production of Eucalyptus urograndis planted at different spacings 不同种植间距下尤加利生长与生产的预测

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3495

Mirella Basileu de Oliveira Lima, M. E. Nappo, S. P. Netto, A. Behling, Mario Tommasiello Filho, K. L. Soares, R. Castro, E. P. Miguel, T. S. Soares, R. Gaspar, P. Aquino, Renan Augusto Miranda Matias

{"title":"Prognosis of growth and production of Eucalyptus urograndis planted at different spacings","authors":"Mirella Basileu de Oliveira Lima, M. E. Nappo, S. P. Netto, A. Behling, Mario Tommasiello Filho, K. L. Soares, R. Castro, E. P. Miguel, T. S. Soares, R. Gaspar, P. Aquino, Renan Augusto Miranda Matias","doi":"10.21475/ajcs.22.16.05.p3495","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3495","url":null,"abstract":"A topic of great interest in forestry research is recognizing the behavior of stands planted at different spacings to optimize the potential of producing multiple products. This study aimed to assess the future production of multiple products from Eucalyptus sp. planted at 12 different spacings. The study area was in central Brazil. A Nelder systematic design with three replications was used. This design yielded 432 planting spots per plot per replicate. Diameter at breast height (DBH) and total height were measured for all trees from 4 to 36 months of age. In addition, the volume of five trees for the spacings of 16, 24, and 36 months of age was measured. Subsequently, an equation system was fitted for each area to project the Weibull 3P probability density function parameters: minimum diameter, maximum diameter, and the number of trees. The current and mean annual increments were assessed based on the total volume. Trees of 36 and 48 months of age were compared between the population designed for multiple products (Scenario I) and the population designed for only one product (Scenario II). The results showed that spacing affects the technical harvest age and that 0.77 m² and 1.76 m² are optimal for a short-term regime","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121840363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon from above-ground biomass and litter accumulated in an Atlantic Forest fragment 来自地上生物量和凋落物的碳在大西洋森林碎片中积累

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3526

A. C. Santos, M. B. G. S. Freire, Lucca Silveira Mousinho Mossio, L. Marangon, F. J. Freire, Rosival Barros de Andrade Lima, C. Borges, Giovana Elvira de Melo

{"title":"Carbon from above-ground biomass and litter accumulated in an Atlantic Forest fragment","authors":"A. C. Santos, M. B. G. S. Freire, Lucca Silveira Mousinho Mossio, L. Marangon, F. J. Freire, Rosival Barros de Andrade Lima, C. Borges, Giovana Elvira de Melo","doi":"10.21475/ajcs.22.16.05.p3526","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3526","url":null,"abstract":"This work aimed to quantify carbon (C) stocks from above-ground biomass (AGB) and accumulated litter in a fragment of the Atlantic Forest biome (edge and interior) in Northeastern Brazil. The study was carried out in areas with native vegetation, in a fragment of Atlantic tropical forest, municipality of Sirinhaém, Pernambuco, Brazil. AGB was quantified using the allometric equation proposed for tropical rainforests. The samples of plant material were dried at 60°C, weighed and ground, and then taken to the laboratory for analysis of organic C contents by dry combustion. AGB stocks were not different between the fragment edge and interior environments. The AGB stratification into diameter classes showed that large trees are important for the storage of biomass in trees. Litter biomass stocks also did not differ between edge and interior. The branch compartment showed higher levels of C. The C-AGB stocks were not different between edge and interior, similar to the C-litter. C stocks did not differ between interior and edge among tree species, except for Protium heptaphyllum, which had the highest C stocks at edges. With this study, we hope to contribute to improving C estimates in fragmented forests to support forest conservation policies, support REDD+ projects, and access to carbon credits","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124129271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of Ochna integerrima (Lour.) Merr leaf extracts against seedling growth of six important plants 中药荷叶的疗效枸杞叶提取物对六种重要植物幼苗生长的影响

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3477

Seinn Moh Moh, H. Noguchi

{"title":"Efficacy of Ochna integerrima (Lour.) Merr leaf extracts against seedling growth of six important plants","authors":"Seinn Moh Moh, H. Noguchi","doi":"10.21475/ajcs.22.16.05.p3477","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3477","url":null,"abstract":"Ochna integerrima (Lour.) Merr, a deciduous shrub in the family Ochnaceae, is a great source of active compounds and is used as a medicinal plant in tropical Asia, Africa, and America. Previous studies have focused on the pharmacological properties of O. integerrima; however, the allelopathic potential of this plant has not yet been identified. Therefore, this study was carried out with completely randomized design to determine the allelopathic potential of O. integerrima leaf extracts in six concentrations against the seedlings growth of dicots plants [garden cress (Lepidium sativum L.), lettuce (Lactuca sativa L.), and alfalfa (Medicago sativa L.)] and monocot plants [Italian ryegrass (Lolium multiﬂorum Lam.), timothy (Phleum pratense L.), and barnyard grass (Echinochloa crusgalli (L.) Beauv.)]. The results showed that the leaf extracts inhibited the seedling growth of all the test plants at concentrations ≥10 mg dry weight (D.W.) equivalent extract mL−1, except for the barnyard grass shoots. The concentrations needed for 50% inhibition (I50 values) of the shoot and root growth of the test plants were in the ranges 1.97–48.01 and 1.18–9.64 mg D.W. equivalent extract mL−1, respectively. The I50 values showed the roots of all the tested plants were more susceptible to the extracts than their shoots, except alfalfa. These findings suggested that the leaf extracts of O. integerrima may possess allelopathic substances which could be used as a source of bio-herbicide for reducing the weed burden in crop fields. Thus, more research is needed to isolate and identify the allelopathic substances in O. integerrima in order to produce bio-herbicide for weed management","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126467852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Eastern Morocco Argania spinosa propagation and growth: A follow-up study 摩洛哥东部棘豆的繁殖和生长:一项后续研究

May 2022 Pub Date : 2022-05-01 DOI: 10.21475/ajcs.22.16.05.p3591

S. Azizi, I. Mzabri, Dalli Mohammed, Kouddane Noureddine, Berrichi Abdelbasset, Gseyra Nadia

{"title":"Eastern Morocco Argania spinosa propagation and growth: A follow-up study","authors":"S. Azizi, I. Mzabri, Dalli Mohammed, Kouddane Noureddine, Berrichi Abdelbasset, Gseyra Nadia","doi":"10.21475/ajcs.22.16.05.p3591","DOIUrl":"https://doi.org/10.21475/ajcs.22.16.05.p3591","url":null,"abstract":"The Argan tree (Argania spinosa L) is an endemic species, located mainly in the southwest of Morocco, but also exists as a relic in the northeast of the country. It is a species of great biological, ecological and socio-economical importance. As part of the domestication of the Argan tree at the national and regional scale, a study was carried out which aims to optimize the mode of sexual multiplication of eastern Morocco Argan tree, by studying the effect of the nuts weight on the rate of imbibition, the rate of germination, the number of seedlings resulting from each nuts classes of weight, and the growth of the seedlings. The experimental treatment is mainly formed by three classes of nuts weight. The first class named W-1 is formed by nuts with a weight less than 2g. The second-class W-2 is characterized by nuts of a weight ranging from 2 to 3.5g. The last class is W3 and has a weight of over than 3.5g. The germination was conducted in a phytotronic room at a controlled temperature (26  2°C). While, the follow-up of the seedlings’ growth was carried out in a glass greenhouse, and the rate and kinetics of imbibition were performed in a separate experiment. The results indicated that the nuts were water permeable and the rate of imbibition was found to be proportionally related to weight and varies between 18.18 % W1 and 32.21% W3 after 48 hours. On the other hand, for the germination rate, the nuts of class W1 showed the highest germination rate (84.4%) followed by those of class W2 (72%) and finally class W3 (68.8%). However, Argan nuts could contain more than one kernel and produce more than one seedling per nut and this allowed to have a high number of produced plants and increased the germination rate in particular for the classes W2 and W3, (99.2% and 97.2%). The results also showed that the growth and the development of seedlings were proportionally related to the weight of the kernels.","PeriodicalId":398198,"journal":{"name":"May 2022","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127197219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0