E. Rezaei‐Chiyaneh, J. Jalilian, S. Seyyedi, M. Barin, E. Ebrahimian, R. K. Afshar
{"title":"Isabgol (Plantago ovata) and lentil (Lens culinaris) intercrop responses to arbuscular mycorrhizal fungi inoculation","authors":"E. Rezaei‐Chiyaneh, J. Jalilian, S. Seyyedi, M. Barin, E. Ebrahimian, R. K. Afshar","doi":"10.1080/01448765.2021.1903556","DOIUrl":"https://doi.org/10.1080/01448765.2021.1903556","url":null,"abstract":"ABSTRACT Intercropping medicinal plants with grain legumes provides an excellent opportunity for small-scale farmers to generate more income and move towards sustainable cropping systems. The effect of arbuscular mycorrhizal fungi (AMF) inoculation on yield, quality and nutrient uptake of isabgol and lentil, when grown as monocrops or in various intercropping ratios, were evaluated. Inoculation with AMF resulted in positive effects on AMF root colonisation, yield components and seed yields (significant for lentils only) of both crops, especially in the intercropping systems, as well as in the nutrient uptake in isabgol. The highest seed yields of isabgol (743 kg ha−1) and lentil (684 kg ha−1) were obtained when these species were grown as monocrops and inoculated with AMF. The highest mucilage content (20.9%) and swelling factor (16.9 ml) of the isabgol seeds were found when the two secies were grown in the intercropping ratio of 2I:2L (2 rows isabgol: 2 rows lentil) and treated with AMF. Regarding the composition of the isabgol seed mucilage, the highest concentrations of galacturonic acid (9.0%), galactose (11.8%), glucuronic acid (18.3%), and xylose (39.0%) were recorded in intercropping with AMF treatment. AMF inoculation also increased soil basic microbial respiration, soil substrate-induced respiration and soil microbial biomass carbon. Overall, the highest land equivalent ratio (LER = 1.67) was recorded in the 4I:2L intercropping pattern with AMF inoculation. The results indicated that intercropping of isabgol and lentil together with AMF inoculation was an effective system to increase the use efficiency of resources for smallholder farmers in semi-arid regions.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"125 - 140"},"PeriodicalIF":1.5,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2021.1903556","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49240811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Diacono, A. Persiani, M. Castellini, L. Giglio, F. Montemurro
{"title":"Intercropping and rotation with leguminous plants in organic vegetables: crop performance, soil properties and sustainability assessment","authors":"M. Diacono, A. Persiani, M. Castellini, L. Giglio, F. Montemurro","doi":"10.1080/01448765.2021.1891968","DOIUrl":"https://doi.org/10.1080/01448765.2021.1891968","url":null,"abstract":"ABSTRACT This research was carried out in an organic crop sequence of cauliflowers (Brassica oleracea L.) and tomatoes (Solanum lycopersicum L.) intercropped with different cover crop species (burr medic (Medicago polymorpha L) and crimson clover (Trifolium incarnatum L.)) grown as living mulches and cultivated on a ridge system on a site characterised by extreme weather events (floods) in the Mediterranean environment. The objectives of the research were to: (i) investigate the impact of the combination of agro-ecological techniques (cover crops and organic fertilisation) on cash crops yield, biomass production and selected physical properties of the soil; (ii) evaluate the sustainability of the systems by using both energy inputs/outputs analysis and assessment of greenhouse gas emissions (GHG). Six treatment combinations were compared: intercropping with burr medic throughout the crop rotation, with and without organic fertilisers; growing crimson clover as a living mulch in the winter crop within the crop rotation, with and without organic fertilisers; cropping system without cover crops, with and without organic fertilisers. The findings highlighted that the introduction of cover crops in the rotation should be recommended since it resulted in higher crop production levels without negative impacts on soil physical properties, as well as in the best energy use efficiency and carbon efficiency in the system. The results of the soil physical quality assessment indicated that the agro-ecological practices had no significant effects on the soil properties. Therefore, in the Mediterranean conditions, the proposed agro-ecological approaches can be crucial to achieving sustainable organic agro-ecosystems.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"141 - 167"},"PeriodicalIF":1.5,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2021.1891968","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47577097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soil nutrient dynamics and plant-induced nutrient mobilisation in organic and low-input farming systems: conceptual framework and relevance","authors":"J. Friedel, M. Ardakani","doi":"10.1080/01448765.2020.1855247","DOIUrl":"https://doi.org/10.1080/01448765.2020.1855247","url":null,"abstract":"ABSTRACT Plant nutrition practice in organic agricultural systems is sometimes reduced to a renunciation of applying readily soluble mineral fertilisers. In organic farming, however, soil nutrient stocks are regarded as an additional source of plant-available nutrients that can be mobilised by crop plants through rhizosphere effects. Therefore, unlike in conventional farming, the focus is not on replacement of the nutrients removed by the harvested products through readily soluble fertilisers enhancing nutrient concentrations in the soil solution. Instead, it is on minimising nutrient losses and supplying plant nutrients through soil-plant-microorganism interactions in which improved soil structure and enhanced soil biological activity facilitate plant-induced nutrient mobilisation and nutrient uptake under conditions of limited nutrient availability in the soil. This paper reviews these soil processes that improve the availability of macro- and micronutrients to plant roots under conditions of limited nutrient availability. It focuses on providing a conceptual framework for the different processes contributing to nutrient mobilisation and within which the various strategies for improving nutrient efficiency can be integrated in organically managed soils. Essential farm management options based on scientific views of nutrient dynamics to maintain soil fertility are addressed. With diverse, legume-based crop rotations with an adequate proportion of time dedicated to fertility building crops, careful management of manure and organic residues, and by using permitted inputs for phosphorus (P) and potassium (K), organic farms can be managed sustainably. However, efforts for recycling nutrients, mainly phosphorus, need to be enhanced.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"1 - 24"},"PeriodicalIF":1.5,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1855247","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41850925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Agronomic practice and performance of organic farms in different environmental conditions in Lithuania","authors":"A. Arlauskienė, L. Šarūnaitė, Z. Kadžiulienė","doi":"10.1080/01448765.2020.1850351","DOIUrl":"https://doi.org/10.1080/01448765.2020.1850351","url":null,"abstract":"ABSTRACT The aim of this study was to determine the impact of plant diversity and agricultural practices on crop productivity on organically managed mixed and arable farms under different natural conditions. Organic farms in three regions of Lithuania, differing in landscape homogeneity, soil quality and farming intensity, were evaluated. The results showed that there were arable farms in all regions, regardless of the soil fertility and the largest number of mixed farms was in Western Lithuania. On the mixed farms, perennial forage grass prevailed in the cropping structure, whilst cereals were the main crops on the arable farms with grain legumes grown to restore soil fertility. Short crop rotations and a low diversity of crops predominated. The average grain yields of the winter and spring cereals and the grain legumes were 3283, 2539 and 2917 kg ha−1, respectively. The productivity of the cereals and grain legumes depended on the region, and for spring cereals also on the interaction between region and farm type. Significantly lower yields of winter and spring cereals were recorded on the arable farms in East Lithuania, compared with the arable farms in the other regions. For organic farming systems, especially for arable farms, it was recommended to explore and implement the use of mixed or strip relay intercrops and multicultural cropping systems or blocks, thereby increasing spatial and temporal crop diversity and using plants that provide ecological services (e.g. legume swards). Reduced tillage practice to increase humification of plant residues in the soil was also recommended.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"91 - 106"},"PeriodicalIF":1.5,"publicationDate":"2020-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1850351","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47589840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. F. Herencia, L. F. Pérez-Romero, A. Daza, F. Arroyo
{"title":"Chemical and biological indicators of soil quality in organic and conventional Japanese plum orchards","authors":"J. F. Herencia, L. F. Pérez-Romero, A. Daza, F. Arroyo","doi":"10.1080/01448765.2020.1842243","DOIUrl":"https://doi.org/10.1080/01448765.2020.1842243","url":null,"abstract":"ABSTRACT To evaluate the effect of the management system on soil quality, chemical and biological properties were measured in soils (0–20 cm depth) from Japanese plum orchards managed under organic and conventional conditions. The experiment was conducted between 2005 and 2014 in orchards established at the agricultural research station at Alcalá del Río, Seville, Spain. Overall, the soil chemical parameters in the organic orchard showed higher concentrations of soil organic matter, total N, available P and Mg. There was a trend of higher concentrations of K and Na, though for these elements the differences were significant only in two and one years, respectively. Similarly, concentrations of Mn and Zn tended to be higher in the organic plots, whereas contradictory trends were shown for Fe and Cu. No differences were found between the treatments for other physicochemical parameters such as pH and electrical conductivity. Regarding soil biological properties, the organic system was characterised with a significantly greater abundance of bacteria and fungi compared with the conventional system. The rhizobia population and the legume biomass were also higher in the organic orchard and the plants had more nodules. Likewise, the number of earthworms was higher in the organic system. The results showed that long-term organic management, including the use of cover crops and compost, resulted in a significant shift of the chemical and biological characteristics of the soil compared with the conventional management practice, thus improving soil quality and suggesting that organic farming may provide a potential solution to achieve sustainable agricultural systems.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"71 - 90"},"PeriodicalIF":1.5,"publicationDate":"2020-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1842243","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44037764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Silva-Galicia, R. Álvarez-Espino, E. Sosa-Montes, E. Ceccon
{"title":"Fertilisation schemes based on organic amendments; decomposition and nutrient contribution of traditionally used species in an indigenous region of southern Mexico","authors":"A. Silva-Galicia, R. Álvarez-Espino, E. Sosa-Montes, E. Ceccon","doi":"10.1080/01448765.2020.1837673","DOIUrl":"https://doi.org/10.1080/01448765.2020.1837673","url":null,"abstract":"ABSTRACT The use of organic soil amendments to sustain crop production provides a feasible option for low-income farmers. In La Montaña, in southern Mexico, farmers grow organic hibiscus (Hibiscus sabdariffa) as their main source of income, but yields are low. The aim of this study was to evaluate the decomposition and nutrient release of different species traditionally used by farmers and to make recommendations for their use as soil amendments. The decomposition of Mucuna pruriens, Calliandra houstoniana and stover of hibiscus (separately and as 1:1 mixtures) was evaluated using litterbags in the field, analysing dry weight and chemical components of the remaining litter at monthly intervals. Mucuna on its own and mixtures containing this species, decomposed on average 50% faster than the other amendments. Mucuna on its own released the highest amount of nitrogen (155 kg ha−1 year−1), which was in excess of that required by the hibiscus crop (45 kg nitrogen ha−1 year−1). To complement crop nutrition whilst minimising nitrogen losses and improving soil quality, the calliandra-mucuna mixture was proposed as the most promising amendment, because: (i) the nitrogen demand of the hibiscus crop was met (75.7 kg ha−1 year−1), (ii) the asynchrony of available nutrients was minimised as half of the mass of the amendment had decomposed by the time of the flowering stage of the hibiscus, and (iii) it contributed carbon and nutrients to the soil organic matter. This information can be used to promote agroforestry systems that include mucuna and calliandra trees in hibiscus plantations.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"55 - 70"},"PeriodicalIF":1.5,"publicationDate":"2020-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1837673","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49114056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Potential economic and nutritional benefits of complex rice systems for small-scale farmers in West Sumatra, Indonesia","authors":"A. Sparta, U. Khumairoh, Diego Valbuena, J. Groot","doi":"10.1080/01448765.2020.1833755","DOIUrl":"https://doi.org/10.1080/01448765.2020.1833755","url":null,"abstract":"ABSTRACT Small-scale farmers in South-East Asia face serious challenges in agricultural productivity, food security and environmental degradation. Complex Rice Systems (CRS) entail an integrated farming approach that combines new technologies with traditional practices and knowledge to sustainably increase agricultural productivity. A field experiment was conducted to evaluate the potential of CRS by adding rice, fish, ducks and border crops to rice fields in Lima Puluh Kota (West Sumatra, Indonesia) to improve rice productivity and dietary nutrient supply. The treatments were: conventional rice (CON), organic rice (ORR), organic rice with border crops (ORB), organic rice with fish (ORF), organic rice with ducks (ORD), and organic rice with ducks, fish, and border crops (CRS). The experiment resulted in improvements in growth, development and yield of rice in CRS and ORD compared to other treatments. Despite elevated costs, treatments with ducks also resulted in a higher gross margin than the other treatments. CRS produced the most diverse nutritional composition, and higher nutritional value compared to ORD. It was concluded that CRS can contribute to higher rice yields, improved farm income and more diversified diets, and thus providing a comprehensive approach to improve livelihoods and food security of small-scale farmers.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"37 1","pages":"40 - 54"},"PeriodicalIF":1.5,"publicationDate":"2020-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1833755","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41954549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. B. Okebalama, Chukwunonso Odera Ibezim, V. U. Ugwu, B. Marschner
{"title":"Effects of amending an Ultisol with bambara groundnut seed residue on soil fertility, microbial nutrient cycling and yield of cucumber","authors":"C. B. Okebalama, Chukwunonso Odera Ibezim, V. U. Ugwu, B. Marschner","doi":"10.1080/01448765.2020.1808067","DOIUrl":"https://doi.org/10.1080/01448765.2020.1808067","url":null,"abstract":"ABSTRACT Residue from processing bambara seeds is abundant in West Africa, but scientific knowledge on the suitability of this residue for improving soil fertility is limited. Bambara seed residue (BSR), at 0, 10, 20 and 30 t ha−1, was applied annually to an Ultisol in a two-year field experiment with cucumber. BSR input at 30 t ha−1 produced the highest yield of 256.80 g (= 0.46 t ha−1) compared with 25.70 g (= 0.05 t ha−1) in the control. While BSR had no effect on pH, the input at 20 and 30 t ha−1 significantly increased organic C, total N and K in the soil and increased macro-aggregation by 153% and 193% after the first and second year, respectively. Basal soil respiration at day 3–14 showed increased and rapid labile C utilisation with increased BSR input rates, followed by more persistent CO2-C evolution rates during days 14–42, and significantly higher rates in the control than in the BSR treatments during days 35–42. BSR at 30 t ha−1 increased microbial C by 159%, microbial N by 205% and improved activities of β-glucosidase and tyrosine-aminopeptidase 7.5- and 3.0-fold, respectively. However, reduced activities of S- and many C-cycle enzymes limited the suitability of BSR as a nutrient source for crop growth. Nonetheless, its potential to enhance soil structure and organic C storage in the Ultisol was beneficial and the C pool in soil treated with 30 t ha−1 BSR was sufficiently large to increase N and K availability.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"36 1","pages":"249 - 266"},"PeriodicalIF":1.5,"publicationDate":"2020-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1808067","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42867576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of the effects of compost and vermicompost soil amendments in organic production of four herb species","authors":"G. Ievinsh, Una Andersone-Ozola, S. Zeipiņa","doi":"10.1080/01448765.2020.1812116","DOIUrl":"https://doi.org/10.1080/01448765.2020.1812116","url":null,"abstract":"ABSTRACT The aim of this study was to compare the effects of using compost and vermicompost as soil amendments in organic herb production, using four herb species (Dracocephalum moldavica L., Melissa officinalis L., Nepeta cataria L. and Thymus vulgaris L.) as model plants. Plants were cultivated in a greenhouse in containers filled with soil from an organically certified field and that had been amended with equal rates of cow manure compost or vermicompost [0%, 10%, 20% and 30% (v/v) for M. officinalis and N. cataria, and 0%, 20%, 30%, and 40% (v/v) for D. moldavica and T. vulgaris]. The four herbs showed different sensitivity to the incorporation of the organic amendments, with the optimum rate differing between the species: 20% was shown to be optimum for both amendments in the case of M. officinalis and N. cataria, and 20% for compost and 30% for vermicompost in the case of D. moldavica and T. vulgaris. However, at identical amendment rates, the vermicompost treatment resulted in higher plant biomass compared with the compost. The organic amendments tended to increase the concentration of K+ in the leaf tissue in all species. The NO3 – concentration in the leaf tissue tended to increase with increased rates of the organic amendments, but both amendment-specific and species-specific effects were evident. It was concluded that the use of vermicompost was superior to that of compost for organic herb production in containers.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"36 1","pages":"267 - 282"},"PeriodicalIF":1.5,"publicationDate":"2020-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1812116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45876676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Vasilikiotis, Meng Li, Jennifer E. Schmidt, Anna Azimi, J. Garcia, Astrid Volder, B. Lampinen, A. Gaudin
{"title":"Orchard management practices affect arbuscular mycorrhizal fungal root colonisation of almond","authors":"C. Vasilikiotis, Meng Li, Jennifer E. Schmidt, Anna Azimi, J. Garcia, Astrid Volder, B. Lampinen, A. Gaudin","doi":"10.1080/01448765.2020.1802777","DOIUrl":"https://doi.org/10.1080/01448765.2020.1802777","url":null,"abstract":"ABSTRACT Arbuscular mycorrhizal fungi (AMF) are mutualistic fungi that play important roles in plant nutrition and soil ecosystem functions. While AMF are known to benefit diverse host plants under a range of conditions, little is known about their presence in commercial almond orchards and how frequently used management practices regulate AMF root colonisation. A large-scale survey of almond orchards in the Central Valley of California was conducted to determine the extent of mycorrhizal associations with roots and the impact of orchard management practices and soil properties on AMF root colonisation rates. The roots in all orchards were colonised, with an overall average rate of 64.4%. Organically managed orchards had higher AMF root colonisation rates (73.2%) as compared with conventionally managed orchards (62.1%), primarily due to the presence of soil vegetative cover rather than organic matter inputs. Choice of rootstock and fumigation had only marginal effects while inoculation at planting increased AMF root colonisation of young trees by 27% compared to non-inoculated control. These results highlighted the ubiquitous presence of AMF in commercial almond orchards and significant interacting influences of common management practices on AMF root colonisation under field conditions. Further research into the functional implications of mycorrhizal associations in these orchards will help guide the development of management practices that increase AMF abundance and root colonisation to improve the sustainability of this rapidly expanding industry.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":"36 1","pages":"230 - 248"},"PeriodicalIF":1.5,"publicationDate":"2020-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/01448765.2020.1802777","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44647600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}