期刊,农业科学学报（英文） 2024年卷7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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Nitrogen rhizodeposition from corn and soybean,and its contribution to the subsequent wheat crops

Sainan GengLantao LiYuhong MiaoYinjie Zhang...

2446-2457页

查看更多>>摘要：Nitrogen(N)is a key factor in the positive response of cereal crops that follow leguminous crops when compared to gramineous crops in rotations,with the nonrecyclable rhizosphere-derived N playing an important role.However,quantitative assessments of differences in the N derived from rhizodeposition(NdfR)between legumes and gramineous crops are lacking,and comparative studies on their contributions to the subsequent cereals are scarce.In this study,we conducted a meta-analysis of NdfR from leguminous and gramineous crops based on 34 observations published worldwide.In addition,pot experiments were conducted to study the differences in the NdfR amounts,distributions and subsequent effects of two major wheat(Triticum aestivum L.)-preceding crops,corn(Zea mays L.)and soybean(Glycine max L.),by the cotton wick-labelling method in the main wheat-producing areas of China.The meta-analysis results showed that the NdfR of legumes was significantly greater by 138.93％compared to gramineous crops.In our pot experiment,the NdfR values from corn and soybean were 502.32 and 944.12 mg/pot,respectively,and soybean was also significantly higher than corn,accounting for 76.91 and 84.15％of the total belowground nitrogen of the plants,respectively.Moreover,in different soil particle sizes,NdfR was mainly enriched in the large macro-aggregates(＞2 mm),followed by the small macro-aggregates(2-0.25 mm).The amount and proportion of NdfR in the macro-aggregates(＞0.25 mm)of soybean were 3.48 and 1.66 times higher than those of corn,respectively,indicating the high utilization potential of soybean NdfR.Regarding the N accumulation of subsequent wheat,the contribution of soybean NdfR to wheat was approximately 3 times that of corn,accounting for 8.37 and 4.04％of the total N uptake of wheat,respectively.In conclusion,soybean NdfR is superior to corn in terms of the quantity and distribution ratio of soil macro-aggregates.In future field production,legume NdfR should be included in the nitrogen pool that can be absorbed and utilized by subsequent crops,and the role and potential of leguminous plants as nitrogen source providers in crop rotation systems should be fully utilized.

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Comparison of CWSI and Ts-Ta-VIs in moisture monitoring of dryland crops(sorghum and maize)based on UAV remote sensing

Hui ChenHongxing ChenSong ZhangShengxi Chen...

2458-2475页

查看更多>>摘要：Monitoring agricultural drought using remote sensing data is crucial for precision irrigation in modern agriculture.Utilizing unmanned aerial vehicle(UAV)remote sensing,we explored the applicability of an empirical crop water stress index(CWSI)based on canopy temperature and three-dimensional drought indices(TDDI)constructed from surface temperature(Ts),air temperature(Ta)and five vegetation indices(Vis)for monitoring the moisture status of dryland crops.Three machine learning algorithms(random forest regression(RFR),support vector regression,and partial least squares regression)were used to compare the performance of the drought indices for vegetation moisture content(VMC)estimation in sorghum and maize.The main results of the study were as follows:(1)Comparative analysis of the drought indices revealed that Ts-Ta-normalized difference vegetation index(TDDIn)and Ts-Ta-enhanced vegetation index(TDDIe)were more strongly correlated with VMC compared with the other indices.The indices exhibited varying sensitivities to VMC under different irrigation regimes;the strongest correlation observed was for the TDDIe index with maize under the fully irrigated treatment(r=-0.93).(2)Regarding spatial and temporal characteristics,the TDDIn,TDDIe and CWSI indices showed minimal differences Over the experimental period,with coefficients of variation were 0.25,0.18 and 0.24,respectively.All three indices were capable of effectively characterizing the moisture distribution in dryland maize and sorghum crops,but the TDDI indices more accurately monitored the spatial distribution of crop moisture after a rainfall or irrigation event.(3)For prediction of the moisture content of single crops,RFR models based on TDDIn and TDDIe estimated VMC most accurately(R2＞0.7),and the TDDIn-based model predicted VMC with the highest accuracy when considering multiple-crop samples,with R2 and RMSE of 0.62 and 14.26％,respectively.Thus,TDDI proved more effective than the CWSI in estimating crop water content.

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国家科技期刊平台
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Effects of 1-methylcyclopropene on skin greasiness and quality of'Yuluxiang'pear during storage at 20℃

Wanting YuXinnan ZhangWeiwei YanXiaonan Sun...

2476-2490页

查看更多>>摘要：During storage at 20℃,specific pear cultivars may exhibit a greasy texture and decline in quality due to fruit senescence.Among these varieties,'Yuluxiang'is particularly susceptible to peel greasiness,resulting in significant economic losses.Therefore,there is an urgent need for a preservative that can effectively inhibit the development of greasiness.Previous studies have demonstrated the efficacy of 1-methylcyclopropene(1-MCP)in extending the storage period of fruits.We hypothesize that it may also influence the occurrence of postharvest peel greasiness in the'Yuluxiang'pears.In this study,we treated'Yuluxiang'pears with 1-MCP.We stored them at 20℃ while analyzing the composition and morphology of the surface waxes,recording enzyme activities related to wax synthesis,and measuring indicators associated with fruit storage quality and physiological characteristics.The results demonstrate that prolonged storage at 20℃ leads to a rapid increase in skin greasiness,consistent with the observed elevations in L*,greasiness score,and the content of total wax and greasy wax components.Moreover,there were indications that cuticular waxes underwent melting,resulting in the formation of an amorphous structure.In comparison to controls,the application of 1-MCP significantly inhibited increments in L*values as well as grease scores while also reducing accumulation rates for oily waxes throughout most stages over its shelf period,additionally delaying transitions from flaky-wax structures towards their amorphous counterparts.During the initial 7 d of storage,several enzymes involved in the biosynthesis and metabolism of greasy wax components,including lipoxygenase(LOX),phospholipase D(PLD),and β-ketoacyl-CoA synthase(KCS),exhibited an increase followed by a subsequent decline.The activity of LOX during early shelf life(0-7 d)and the KCS activity during middle to late shelf life(14-21 d)were significantly suppressed by 1-MCP.Additionally,1-MCP effectively maintained firmness,total soluble solid(TSS)and titratable acid(TA)contents,peroxidase(POD),and phenylalanine ammonia-lyase(PAL)activities while inhibiting vitamin C degradation and weight loss.Furthermore,it restrained polyphenol oxidase(PPO)activity,ethylene production,and respiration rate increase.These findings demonstrate that 1-MCP not only delays the onset of peel greasiness but also preserves the overall storage quality of'Yuluxiang'pear at a temperature of 20℃.This study presents a novel approach for developing new preservatives to inhibit pear fruit peel greasiness and provides a theoretical foundation for further research on pear fruit preservation.

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Low-fat microwaved peanut snacks production:Effect of defatting treatment on structural characteristics,texture,color,and nutrition

Bo JiaoXin GuoYiying ChenShah Faisal...

2491-2502页

查看更多>>摘要：This study develops low-fat microwaved peanut snacks(LMPS)using partially defatted peanuts(PDP)with different defatting ratios,catering to people's pursuit of healthy,low-fat cuisine.The effects of defatting treatment on the structural characteristics,texture,color,and nutrient composition of LMPS were comprehensively explored.The structural characteristics of LMPS were characterized using X-ray micro-computed tomography(Micro-CT)and scanning electron microscope(SEM).The results demonstrated that the porosity,pore number,pore volume,brightness,brittleness,protein content,and total sugar content of LMPS all significantly increased(P＜0.05)with the increase in the defatting ratio.At the micro level,porous structure,cell wall rupture,and loss of intracellular material could be observed in LMPS after defatting treatments.LMPS made from PDP with a defatting ratio of 64.44％had the highest internal pore structural parameters(porosity 59％,pore number 85.3×105,pore volume 68.23 mm3),the brightest color(L*78.39±0.39),the best brittleness(3.64±0.21)mm-1),and the best nutrition(high protein content,(34.02±0.38)％;high total sugar content,(17.45±0.59)％;low-fat content,(27.58±0.85)％).The study provides a theoretical basis for the quality improvement of LMPS.

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国家科技期刊平台
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Soybean maize strip intercropping:A solution for maintaining food security in China

Jiang LiuWenyu Yang

2503-2506页

查看更多>>摘要：The practice of intercropping leguminous and gramineous crops is used for promoting sustainable agriculture,optimizing resource utilization,enhancing biodiversity,and reducing reliance on petroleum products.However,promoting conventional intercropping strategies in modern agriculture can prove challenging.The innovative technology of soybean maize strip intercropping(SMSI)has been proposed as a solution.This system has produced remarkable results in improving domestic soybean and maize production for both food security and sustainable agriculture.In this article,we provide an overview of SMSI and explain how it differs from traditional intercropping.We also discuss the core principles that foster higher yields and the prospects for its future development.

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国家科技期刊平台
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