期刊,农业科学学报（英文） 2024年卷5期_国家学术搜索

期刊信息/Journal information

农业科学学报（英文）

中国农业科学院农业信息研究所

主办单位：中国农业科学院农业信息研究所

主　　编：翟虎渠

出版周期：月刊

国际刊号：2095-3119

电子邮箱：zgnykx@mail.caas.net.cn

电　　话：010-82106283 82106280

邮政编码：100081

地　　址：北京中关村南大街12号

农业科学学报（英文）/Journal Journal of Integrative AgricultureCSCDCSTPCD北大核心SCI

查看更多>>本刊创刊于2002年，由中国农业科学院、中国农学会主办，中国农业科学院农业信息研究所承办。刊登农牧业基础科学和应用科学的研究论文，覆盖作物科学、动物科学、农业环境、农业经济与管理等领域。

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A combination of straw incorporation and polymer-coated urea offsets soil ammonia and nitrous oxide emissions in winter wheat fields

Xiaoyun WangYajie TianQianhui ZhangZhengxin Zhao...

1718-1736页

查看更多>>摘要：The combined effects of straw incorporation(SI)and polymer-coated urea(PCU)application on soil ammonia(NH3)and nitrous oxide(N2O)emissions from agricultural fields have not been comprehensively evaluated in Northwest China.We conducted a two-year field experiment to assess the effects of combining SI with either uncoated urea(U)or PCU on soil NH3 emissions,N2O emissions,winter wheat yields,yield-scaled NH3(/NH3),and yield-scaled N2O(IN2O).Five treatments were investigated,no nitrogen(N)fertilizer(N0),U application at 150 kg N ha-1 with and without SI(Sl+U and S0+U),and PCU application at 150 kg N ha-1 with and without SI(SI+PCU and S0+PCU).The results showed that the NH3 emissions increased by 20.98-34.35％following SI compared to straw removal,mainly due to increases in soil ammonium(NH4+-N)content and water-filled pore space(WFPS).SI resulted in higher N2O emissions than under the S0 scenario by 13.31-49.23％due to increases in soil inorganic N(SIN)contents,WFPS,and soil microbial biomass.In contrast,the PCU application reduced the SIN contents compared to the U application,reducing the NH3and N2O emissions by 45.99-58.07 and 18.08-53.04％,respectively.Moreover,no significant positive effects of the SI or PCU applications on the winter wheat yield were observed.The lowest INH3 and IN2O values were observed under the S0+PCU and SI+PCU treatments.Our results suggest that single PCU applications and their combination with straw are the optimal agricultural strategies for mitigating gaseous N emissions and maintaining optimal winter wheat yields in Northwest China.

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国家科技期刊平台
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NSTL
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Changes in milk fat globule membrane proteins along lactation stage of Laoshan dairy goat

Chuozi LiangZhongna YuGuangming ZhuYixuan Li...

1737-1748页

查看更多>>摘要：The milk fat globule membrane(MFGM)is a complex structure with numerous functions,and its composition is affected by many factors.There have been few systematic investigations on goat MFGM proteome profiling during lactation.Individual milk samples from 15 healthy dairy goats were obtained at six lactation time points for investigation of the MFGM proteome using both data-independent acquisition(DIA)and data-dependent acquisition(DDA)proteomics techniques combined with multivariate statistical analysis.Using the DIA method,890 variably abundant MFGM proteins were discovered throughout the lactation cycle.From 1 to 240 d,butyrophilin subfamily 1 member A1,lipoprotein lipase,perilipin-2,and adipose triglyceride lipase were upregulated,while APOE,complement C3,clusterin,and IgG were downregulated.Furthermore,from 1 to 90 d,annexin A1,annexin A2,and antithrombin-Ⅲ were downregulated,then upregulated by d 240.Albumin had a high degree of connectedness,indicating that it was a key protein,according to protein-protein interaction research.Overall,our findings gave new insights into the biological features of MFGM protein in goat milk throughout lactation,which may aid in the creation of specialized MFGM products and infant formula.

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国家科技期刊平台
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Geographical origin identification of winter jujube(Ziziphus jujuba'Dongzao')by using multi-element fingerprinting with chemometrics

Xiabing KongQiusheng ChenMin XuYihui Liu...

1749-1762页

查看更多>>摘要：Winter jujube(Ziziphus jujuba'Dongzao')is greatly appreciated by consumers for its excellent quality,but brand infringement frequently occurs in the market.Here,we first determined a total of 38 elements in 167 winter jujube samples from the main winter jujube producing areas of China by inductively coupled plasma mass spectrometer(ICP-MS).As a result,16 elements(Mg,K,Mn,Cu,Zn,Mo,Ba,Be,As,Se,Cd,Sb,Ce,Er,TI,and Pb)exhibited significant differences in samples from different producing areas.Supervised linear discriminant analysis(LDA)and orthogonal projection to latent structures discriminant analysis(OPLS-DA)showed better performance in identifying the origin of samples than unsupervised principal component analysis(PCA).LDA and OPLS-DA had a mean identification accuracy of 87.84 and 94.64％in the testing set,respectively.By using the multilayer perceptron(MLP)and C5.0,the prediction accuracy of the models could reach 96.36 and 91.06％,respectively.Based on the above four chemometric methods,Cd,TI,Mo and Se were selected as the main variables and principal markers for the origin identification of winter jujube.Overall,this study demonstrates that it is practical and precise to identify the origin of winter jujube through multi-element fingerprint analysis with chemometrics,and may also provide reference for establishing the origin traceability system of other fruits.

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国家科技期刊平台
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The multiple roles of crop structural change in productivity,nutrition and environment in China:A decomposition analysis

Xiangyang ZhangYumei ZhangShenggen Fan

1763-1773页

查看更多>>摘要：China's crop structure has undergone significant changes in the last two decades since 2000,with an increase in the share of cereals,vegetables,and fruit,squeezing out other crops.As a result,land productivity,nutrient supply,and carbon emissions have changed.How to reallocate limited farmland among crops to achieve the multiple goals of agrifood systems becomes an important issue.This study explores the sources of land productivity and nutrition supply growth and carbon emissions reduction,and identifies the multiple roles of crop structural change from 2003 to 2020 based on a decomposition analysis.The results reveal that the growth within crops is still the primary driver in land productivity and nutrition supply and the reduction in carbon emissions.However,structural change also plays various roles at different periods.From 2003 to 2010,crop structural change increased the total calorie supply but lowered land productivity and contributed at least 70％of the total growth of carbon emissions.The crop structure was relatively stable,and their effects were modest from 2010 to 2015.From 2015 to 2020,the crop structural change began to play a greater role and generate synergistic effects in improving land productivity,micronutrient supply,and reducing carbon emissions,contributing to approximately a quarter of the growth of land productivity and 30％of total carbon emissions reduction.These results suggest that strategies for crop structural change should comprehensively consider its multiple impacts,aiming to achieve co-benefits while minimizing trade-offs.

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国家科技期刊平台
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Effects of formal credit on pastoral household expense:Evidence from the Qinghai-Xizang Plateau of China

Yan ZhangYi HuangFan ZhangZeng Tang...

1774-1785页

查看更多>>摘要：Formal credit is critical in agricultural production,allowing more expenditure and productive input,thereby improving farmers'welfare.In pastoral China,formal financial institutions are gradually increasing.However,a limited understanding remains of how formal credit affects herders'household expenses.Based on a survey of 544 herders from the Qinghai-Xizang Plateau of China,this study adopted the propensity score matching approach to identify the effect of formal credit on herders'total household expenses,daily expenses,and productive expenses.The results found that average age,grassland mortgage,and other variables significantly affected herders'participation in formal credit.Formal credit could significantly improve household expenses,especially productive expenses.A heterogeneity analysis showed that formal credit had a greater impact on the household total expense for those at higher levels of wealth;however,it significantly affected the productive expense of herders at lower wealth levels.Moreover,the mediating effect indicated that formal credit could affect herders'household income,thus influencing their household expenses.Finally,this study suggests that policies should improve herders'accessibility to formal credit.

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据