The Journal of Agricultural Science最新文献_第10页

Plant density effects on quinoa yield, leaf anatomy, ultrastructure and gas exchange 植株密度对藜麦产量、叶片解剖、超微结构和气体交换的影响

The Journal of Agricultural Science Pub Date : 2022-08-25 DOI: 10.1017/S0021859622000533

J. A. González, M. I. Mercado, L. Martinez-Calsina, L. Erazzú, S. E. Buedo, D. A. González, G. Ponessa

{"title":"Plant density effects on quinoa yield, leaf anatomy, ultrastructure and gas exchange","authors":"J. A. González, M. I. Mercado, L. Martinez-Calsina, L. Erazzú, S. E. Buedo, D. A. González, G. Ponessa","doi":"10.1017/S0021859622000533","DOIUrl":"https://doi.org/10.1017/S0021859622000533","url":null,"abstract":"Abstract To study the impact of plant density on Chenopodium quinoa (c.v. CICA-17) achene yield and its relationship with morphology, leaf anatomy and gas exchange in the absence of water stress, field trials were conducted at 1995 m asl in Northwestern Argentina. Two plant densities were evaluated; low density (LD) 7.2 plants/m (120 240 pl/ha) and high density (HD) 27.9 plants/m (465 930 pl/ha). HD treatment caused light competition, inducing morphological and anatomical changes in Quinoa plants. Plants grown under HD conditions showed decreases in plant height and stem diameter, lower stomatal dimensions and densities, and thinner leaf blades. Compensation strategies such as increases in specific leaf area and a higher number chloroplasts per palisade cell were observed, nevertheless these changes did not fully compensate C absorption and gas exchange limitations, therefore limiting the uptake of N and P and resulting in a 53.2% lower yield of HD compared to LD. Considering the ability of quinoa plants to change its morphology and anatomy, further studies with intermediate plant densities are necessary in order to determine if it is possible to achieve higher yields and to increase the efficiency in the use of the resources.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131727272","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

Productive and nutritive traits of Piatã palisadegrass after thinning the forest component of a silvopastoral system in southeastern Brazil 巴西东南部森林系统森林成分间伐后Piatã栅栏草的生产和营养特性

The Journal of Agricultural Science Pub Date : 2022-08-25 DOI: 10.1017/S002185962200051X

H. B. Brunetti, J. Pezzopane, W. L. Bonani, C. Bosi, R. Pasquini Neto, A. Bernardi, P. P. A. de Oliveira

{"title":"Productive and nutritive traits of Piatã palisadegrass after thinning the forest component of a silvopastoral system in southeastern Brazil","authors":"H. B. Brunetti, J. Pezzopane, W. L. Bonani, C. Bosi, R. Pasquini Neto, A. Bernardi, P. P. A. de Oliveira","doi":"10.1017/S002185962200051X","DOIUrl":"https://doi.org/10.1017/S002185962200051X","url":null,"abstract":"Abstract Silvopastoral systems (SPSs) are sustainable alternatives for pasture intensification. Management practices such as thinning are options to diminish competition for resources between pasture and trees, ensuring appropriate forage production. The objective of this study was to evaluate the productive and nutritive traits of Piatã palisadegrass (Urochloa brizantha cv. BRS Piatã) after thinning the forest component of a SPS. Forage production and nutritive value, along with microclimate variables were assessed in a SPS and in an intensive system (INT) in São Carlos-SP, Brazil, from 2016 to 2018. The INT was a full sun pasture of Piatã palisadegrass, while the SPS was established with Piatã palisadegrass shaded by eucalyptus (Eucalyptus urograndis clone GG100) spaced 15 × 2 m but thinned to 15 × 4 m before the onset of the experiment. In the SPS, measurements were made under the tree row (SPS_1), 3.75-m (SPS_2), 7.5-m (SPS_3) and 11.25-m (SPS_4) distant from the North row. Forage accumulation in the two systems were similar, whereas the pre-grazing forage mass in most of the SPS positions were smaller than that of the INT during the autumn of 2017 and summer of 2018. Crude protein (CP) content was greater in the SPS than in the INT in most positions and seasons. Forage production was favoured by the thinning of the trees mainly in the seasons close to the event, while forage CP was consistently greater in the understory pasture. Thinning of trees in SPSs can be adopted to provide forage production similar to intensive pastures with higher protein content.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114454310","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

One, two, three: portable sample size in agricultural research 一、二、三:农业研究中的便携式样本量

The Journal of Agricultural Science Pub Date : 2022-08-25 DOI: 10.1017/S0021859622000466

H. Piepho, D. Gabriel, Jens Hartung, A. Büchse, Meike Grosse, Sabine Kurz, F. Laidig, Volker Michel, Iain Proctor, Jan Erik Sedlmeier, K. Toppel, D. Wittenburg

引用次数: 3

Physical and chemical characteristics of feedlot pen substrate bedded with woodchip under wet climatic conditions 湿润气候条件下用木屑铺层的饲养场围栏基材的物理化学特性

The Journal of Agricultural Science Pub Date : 2022-08-25 DOI: 10.1017/S002185962200048X

Janelle Wilkes, Amy L. Tait, R. Flavel, James Turnell, F. Cowley

{"title":"Physical and chemical characteristics of feedlot pen substrate bedded with woodchip under wet climatic conditions","authors":"Janelle Wilkes, Amy L. Tait, R. Flavel, James Turnell, F. Cowley","doi":"10.1017/S002185962200048X","DOIUrl":"https://doi.org/10.1017/S002185962200048X","url":null,"abstract":"Abstract Wet winter conditions can create animal welfare issues in feedlots if the pen surface becomes a deep, wet, penetrable substrate. Feedlot pens with a clay and gravel base (N = 30) bedded with 150 mm (W15) and 300 mm (W30) depth of woodchips were compared to a control treatment with no bedding over a 109-day feeding period, while irrigated to supplement natural rainfall. The pad substrate was measured for variables which would affect cattle comfort and value of the substrate for composting. The penetrable depth of control pens was higher than both woodchip-bedded treatments from week 2, and increased until the end of the experiment. Meanwhile these scores were steady for W30 throughout the experiment, and increased for W15 only after week 10. Moisture content of the pad was higher throughout the experiment in the control pens than in the woodchip-bedded pens. In the control pens, the force required to pull a cattle leg analogue out of the pen substrate was three times that required in woodchip-bedded treatments. The W15 treatment increased C : N in the substrate to the upper limit of suitability for composting, and in W30, C : N was too high for composting after a 109-day feeding period. Overall, providing feedlot cattle with 150 or 300 mm of woodchip bedding during a 109-day feeding period improved the condition of the pad substrate for cattle comfort by reducing penetrable depth and moisture content of the substrate surface stratum, but composting value decreased in W30 over this feeding period duration.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121761727","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

Dynamics of fermentation profile, bacterial communities and their functional characteristics in red clover 红三叶草发酵动态、细菌群落及其功能特征

The Journal of Agricultural Science Pub Date : 2022-08-17 DOI: 10.1017/S0021859622000508

Siran Wang, T. Shao, Junfeng Li, Jie Zhao, Z. Dong

{"title":"Dynamics of fermentation profile, bacterial communities and their functional characteristics in red clover","authors":"Siran Wang, T. Shao, Junfeng Li, Jie Zhao, Z. Dong","doi":"10.1017/S0021859622000508","DOIUrl":"https://doi.org/10.1017/S0021859622000508","url":null,"abstract":"Abstract The bacterial community is important for shaping the fermentation characteristics of silage. This study aimed to investigate the fermentation characteristics, bacterial community and predicted functional characteristics of red clover (Trifolium pratense L.) silage. First-cutting red clover was collected at the early bloom stage, wilted for 5 h and then ensiled in 10 litre-capacity silos. Triplicate silos were sampled after 1, 3, 7, 15, 30 and 60 days of ensiling, respectively. The bacterial communities on days 3 and 60 were assessed through high-throughput sequencing technology, and 16S rRNA-gene predicted functional characteristics were analysed based on the KEGG using Tax4Fun. After 60 days of ensiling, red clover silage was fermented well, as indicated by high lactic acid (~77.3 g/kg DM), and low concentrations of butyric acid (~3.73 g/kg DM) and ammonia nitrogen (~55.0 g/kg TN). During the initial stage of ensiling, fructose and glucose were more preferred than sucrose for microbes. The predominant genus Lactococcus (0.542) on day 3 was replaced by Lactobacillus (0.553) on day 60. The metabolism of amino acids, energy, cofactors and vitamins was inhibited, while the metabolism of nucleotides and carbohydrates was enhanced after ensiling. High-throughput sequencing technology combined with 16S rRNA gene-predicted functional analyses revealed the differences during the early and late stages of red clover silage not only for distinct bacterial compositions but also for specific functional traits. Our results could provide a comprehensive insight into bacterial community and their functional profiles to further improve the silage quality.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131719554","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

Aerobic ammonia removal with heterotrophic nitrification and denitrification of Alcaligenes faecalis strain No.4 to mitigate nitrogenous pollution caused by piggery wastewater: a feasibility study 粪碱性菌4号异养硝化反硝化去除好氧氨缓解养猪场废水氮污染的可行性研究

The Journal of Agricultural Science Pub Date : 2022-08-11 DOI: 10.1017/S0021859622000491

J. Takahashi, M. Shoda, Jianhua Li, Ning Li

{"title":"Aerobic ammonia removal with heterotrophic nitrification and denitrification of Alcaligenes faecalis strain No.4 to mitigate nitrogenous pollution caused by piggery wastewater: a feasibility study","authors":"J. Takahashi, M. Shoda, Jianhua Li, Ning Li","doi":"10.1017/S0021859622000491","DOIUrl":"https://doi.org/10.1017/S0021859622000491","url":null,"abstract":"Abstract The ammonia removal ability of heterotrophic bacteria Alcaligenes faecalis strain No.4 isolated from sewage sludge was examined in a batch operation to mitigate ammonia from piggery wastewater, consequently preventing pollution by the inflow of wastewater from piggeries adjacent to rivers. If this process works functionally, it can be effective in controlling nitrous oxide (N2O) and nitrate (NO3−) emissions derived from animal agriculture, the heterotrophic nitrifying and the aerobic denitrifying effect of A. faecalis strain No.4 on high-strength ammonium (NH4+-N) were evaluated in wastewater collected from a piggery. The removal rate by A. faecalis strain No.4 on high-strength ammonium (NH4+-N) was 0.97 kg N/m3/day which was more than 100 fold greater than that achieved using conventional aerobic nitrification and anaerobic denitrification processes. An aerobic one-step denitrification system using A. faecalis strain No.4 can be proposed to remove ammonia and phytopathogens from piggery wastewater with high efficiency and prevent water pollution in adjacent rivers.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116853360","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

Prediction and copy number variation identification of ZNF146 gene related to growth traits in Chinese cattle 中国牛生长性状相关基因ZNF146的预测及拷贝数变异鉴定

The Journal of Agricultural Science Pub Date : 2022-08-10 DOI: 10.1017/S0021859622000302

X. Ding, X. Liu, X. M. Li, Yvonne Ying-Ya Wen, J. W. Xu, W. J. Liu, Z. Li, Z. Zhang, Y. Chai, H. L. Wang, B. Cheng, S. H. Liu, B. Hou, Y. Huang, J. G. Li, L. Li, G. Yang, Z. Qi, F. Y. Chen, Q. Shi, E. Wang, C. Lei, H. Chen, B. Ru, Y. Huang

{"title":"Prediction and copy number variation identification of ZNF146 gene related to growth traits in Chinese cattle","authors":"X. Ding, X. Liu, X. M. Li, Yvonne Ying-Ya Wen, J. W. Xu, W. J. Liu, Z. Li, Z. Zhang, Y. Chai, H. L. Wang, B. Cheng, S. H. Liu, B. Hou, Y. Huang, J. G. Li, L. Li, G. Yang, Z. Qi, F. Y. Chen, Q. Shi, E. Wang, C. Lei, H. Chen, B. Ru, Y. Huang","doi":"10.1017/S0021859622000302","DOIUrl":"https://doi.org/10.1017/S0021859622000302","url":null,"abstract":"Abstract The great demographic pressure brings tremendous volume of beef demand. The key to solve this problem is the growth and development of Chinese cattle. In order to find molecular markers conducive to the growth and development of Chinese cattle, sequencing was used to determine the position of copy number variations (CNVs), bioinformatics analysis was used to predict the function of ZNF146 gene, real-time fluorescent quantitative polymerase chain reaction (qPCR) was used for CNV genotyping and one-way analysis of variance was used for association analysis. The results showed that there exists CNV in Chr 18: 47225201-47229600 (5.0.1 version) of ZNF146 gene through the early sequencing results in the laboratory and predicted ZNF146 gene was expressed in liver, skeletal muscle and breast cells, and was amplified or overexpressed in pancreatic cancer, which promoted the development of tumour through bioinformatics. Therefore, it is predicted that ZNF146 gene affects the proliferation of muscle cells, and then affects the growth and development of cattle. Furthermore, CNV genotyping of ZNF146 gene was three types (deletion type, normal type and duplication type) by Real-time fluorescent quantitative PCR (qPCR). The association analysis results showed that ZNF146-CNV was significantly correlated with rump length of Qinchuan cattle, hucklebone width of Jiaxian red cattle and heart girth of Yunling cattle. From the above results, ZNF146-CNV had a significant effect on growth traits, which provided an important candidate molecular marker for growth and development of Chinese cattle.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"201 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114044897","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

Use of an aridity index to classify season with an application in genetic evaluation of Braunvieh cattle 用干旱指数划分季节及其在布劳恩维牛遗传评价中的应用

The Journal of Agricultural Science Pub Date : 2022-08-08 DOI: 10.1017/S0021859622000454

J. B. Herrera-Ojeda, R. Ramírez-Valverde, R. Núñez-Domínguez, N. López-Villalobos, J. F. Vázquez-Armijo, K. E. Orozco-Durán, G. M. Parra-Bracamonte

{"title":"Use of an aridity index to classify season with an application in genetic evaluation of Braunvieh cattle","authors":"J. B. Herrera-Ojeda, R. Ramírez-Valverde, R. Núñez-Domínguez, N. López-Villalobos, J. F. Vázquez-Armijo, K. E. Orozco-Durán, G. M. Parra-Bracamonte","doi":"10.1017/S0021859622000454","DOIUrl":"https://doi.org/10.1017/S0021859622000454","url":null,"abstract":"Abstract One of the most important aspects of genetic evaluation (GE) is the definition of contemporary groups (CG), commonly defined as animals of the same sex born in the same herd, year and season. The objective of this study was to use an aridity index (AI) to classify season and evaluate the implications on the GE of Braunvieh cattle. A data set with 32 777 and 22 448 birth weight (BW) and weaning weight adjusted to 240 days (WW) records, respectively, was used to compare two methods of classification of climatic seasons to be used in the definition of CG for GE models. The first method considered rain season criterion (RC), and the second method is a proposed classification using an AI. Both methods were compared using two approaches. The first approach examined differences in mixed models using the RC and AI season to select the best model for BW and WW, evaluated by different goodness of fit measures. The second approach considered fitting a GE model including the season classifications into the CG structure. Lower probability values for season effect and better goodness of fit measures were obtained when the season was classified according to the AI. Results showed that although differences are small, the AI allows a better model fitting for live-weight traits than RC and revealed a re-ranking effect on expected progeny differences data. Further analysis with other traits would demonstrate the extended utility of AI indicators to be considered for fitting models under a climatic change environment.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115814239","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

On solving an isotope dilution model for the partition of phenylalanine and tyrosine uptake by the liver of lactating dairy cows 求解泌乳期奶牛肝脏对苯丙氨酸和酪氨酸摄取分配的同位素稀释模型

The Journal of Agricultural Science Pub Date : 2022-08-08 DOI: 10.1017/S0021859622000442

L. Crompton, L. McKnight, C. Reynolds, J. Ellis, J. Dijkstra, J. France

{"title":"On solving an isotope dilution model for the partition of phenylalanine and tyrosine uptake by the liver of lactating dairy cows","authors":"L. Crompton, L. McKnight, C. Reynolds, J. Ellis, J. Dijkstra, J. France","doi":"10.1017/S0021859622000442","DOIUrl":"https://doi.org/10.1017/S0021859622000442","url":null,"abstract":"Abstract An isotope dilution model for partitioning phenylalanine and tyrosine uptake by the liver of the lactating dairy cow is constructed and solved in the steady state. An original ten-pool model is adopted and solved by cleaving it into two five-pool sub-models, one representing phenylalanine and the other tyrosine. If assumptions are made, model solution permits calculation of the rate of phenylalanine and tyrosine uptake from portal vein and hepatic arterial blood supply, hydroxylation, and synthesis and degradation of constitutive protein. The model requires the measurement of plasma flow rate through the liver in combination with amino acid concentrations and plateau isotopic enrichments in arterial and portal and hepatic vein plasma during a constant infusion of [1-13C]phenylalanine and [2,3,5,6-2H]tyrosine tracers. It also requires estimates of the rate of oxidation and protein export secretion. Analysis of measurement errors in experimental enrichments and infusion rates on model solutions indicated that accurate values of the intracellular and extracellular enrichments are central to minimising errors in the calculated flows. Solving the model by cleaving into two five-pool schemes rather than solving the ten-pool scheme directly is preferred as there appears to be less compounding of errors and the results consistently appear to be more biologically feasible. The model provides a means for assessing the impact of hepatic metabolism on amino acid availability to peripheral tissues such as the mammary gland.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130137613","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

The influence of phosphorus application and varying soil pH on soil and herbage properties across a range of grassland soils with impeded drainage 施磷和不同土壤pH对排水受阻草地土壤和牧草性质的影响

The Journal of Agricultural Science Pub Date : 2022-08-01 DOI: 10.1017/S0021859622000363

D. Corbett, D. Wall, M. B. Lynch, P. Tuohy

{"title":"The influence of phosphorus application and varying soil pH on soil and herbage properties across a range of grassland soils with impeded drainage","authors":"D. Corbett, D. Wall, M. B. Lynch, P. Tuohy","doi":"10.1017/S0021859622000363","DOIUrl":"https://doi.org/10.1017/S0021859622000363","url":null,"abstract":"Abstract On soils dominated by high proportions of clay and organic matter, soil acidity and poor nutrient use efficiency have a major impact on output potential. Due to the inherent chemical properties of these soils, reducing soil acidity and the prevalence of undesirable metallic cations poses challenges. As a result, these soils have a large capacity for phosphorus (P) fixation, therefore reducing plant P availability. Limestone (CaCO3 or MgCO3) is applied to agricultural soils to counteract soil acidity and reduce P fixation. The current study investigates the effects of four contrasting annual P application rates (0, 50, 100, 150 kg P/ha); split (50:50) between spring and summer, across soils with a range of soil pH values from a previous liming trial. The effect of soil pH ranges and P treatment rates on seasonal herbage growth and herbage P concentration was investigated over three years. Soil nutrient status was also investigated. Soil pH had a significant impact on the rate of mineralization and soil P concentration across each site. A soil pH of 6.2 caused a 1.8 mg/l increase in soil test P. An annual P application was necessary to maintain sufficient herbage P concentration for animal dietary requirements (0.35% DM), however there was no effect of P application or liming rate on herbage productivity across the three sites as all sites possessed sufficient soil P reserves. The current experiment has shown that despite optimal soil fertility status, ensuring sufficient plant available P is a problem on these particular soils.","PeriodicalId":216330,"journal":{"name":"The Journal of Agricultural Science","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130150951","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