检索范围:
排序: 展示方式:
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 doi: 10.15302/J-FASE -2020355
Agriculture faces the dual challenges of food security and environmental sustainability. Here, we investigate current maize production at the field scale, analyze the yield gaps and impacting factors, and recommend measures for sustainably closing yield gaps. An experiment was conducted on a 3.9-ha maize seed production field in arid north-western China, managed with border and drip irrigation, respectively, in 2015 and 2016. The relative yield reached 70% in both years. However, drip irrigation saved 227 mm irrigation water during a drier growing season compared with traditional border irrigation, accounting for 44% of the maize evapotranspiration (ET). Yield variability under drip irrigation was 12.1%, lower than the 18.8% under border irrigation. Boundary line analysis indicates that a relative yield increase of 8% to 10% might be obtained by optimizing the yield-limiting factors. Plant density and soil available water content and available nitrogen were the three major factors involved. In conclusion, closing yield gaps with agricultural sustainability may be realized by optimizing agronomic, irrigation and fertilizer management, using water-saving irrigation methods and using site-specific management.
关键词: boundary line analysis irrigation method precision agriculture spatial variability yield gaps yield-limiting factors
Xiuwei GUO, Manoj Kumar SHUKLA, Di WU, Shichao CHEN, Donghao LI, Taisheng DU
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 525-544 doi: 10.15302/J-FASE-2020355
关键词: boundary line analysis irrigation method precision agriculture spatial variability yield gaps yield-limiting factors
Linjia BAI, Yunfeng ZHANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 199-209 doi: 10.1007/s11709-012-0168-4
关键词: collapse dynamic response fragility analysis Monte Carlo simulation wind load
The effect of conservation tillage on crop yield in China
Hongwen LI,Jin HE,Huanwen GAO,Ying CHEN,Zhiqiang ZHANG
《农业科学与工程前沿(英文)》 2015年 第2卷 第2期 页码 179-185 doi: 10.15302/J-FASE-2015058
关键词: conservation tillage crop yield soil structure development strategies
Breeding strategies for increasing yield potential in super hybrid rice
Shihua CHENG,Xiaodeng ZHAN,Liyong CAO
《农业科学与工程前沿(英文)》 2015年 第2卷 第4期 页码 277-282 doi: 10.15302/J-FASE-2015081
Highlight yield forming and innovative technologies in tropical crops
Wenquan WANG
《农业科学与工程前沿(英文)》 2016年 第3卷 第4期 页码 283-284 doi: 10.15302/J-FASE-2016128
Qiong DAI MD, Bei LIU MD, Yukai DU MM,
《医学前沿(英文)》 2009年 第3卷 第4期 页码 452-458 doi: 10.1007/s11684-009-0080-z
关键词: meta-analysis breast cancer risk factors reproductive factors oral contraceptive use
YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 583-593 doi: 10.15302/J-FASE -2020325
The effects of regulated deficit irrigation (RDI) on the performance of almond cv. Tuono, peach cv. JH-Hall and plum cv. Stanley were assessed on the Saiss Plain (NW, Morocco) over three consecutive growing seasons (2011–2013). Irrigation treatments consisted of a control, irrigation applied to fully satisfy crop water requirements (100% ETC), and two RDI treatments, irrigation applied to 75% ETC (RDI-75) and 50% ETC (RDI-50). These three treatments were applied during fruit-growth slowdown periods corresponding to Stages II and III in almond and Stage II in peach and plum. Yield and fruit quality traits were determined. The effect of RDI differed between species. Yield and fruit size were reduced significantly only in peach under RDI-50. Fruit quality improved in this species in the first year of the experiment, with an increase of sugar/acid ratio and polyphenol content. Plum quality also improved but the effects were significant only in the second and third years. Similar results were recorded in almond kernel, but their epidermal grooves were deeper under RDI-50, and this may have affected their commercial value. It is concluded that water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield.
Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages
Kailou LIU,Yazhen LI,Huiwen HU
《农业科学与工程前沿(英文)》 2014年 第1卷 第2期 页码 150-157 doi: 10.15302/J-FASE-2014028
关键词: normalized difference vegetation index (NDVI) N-(n-butyl) thiophosphoric triamide (NBPT) rice grain yield
Lodging resistance and yield potential of winter wheat: effect of planting density and genotype
Yonggui XIAO,Jianjun LIU,Haosheng LI,Xinyou CAO,Xianchun XIA,Zhonghu HE
《农业科学与工程前沿(英文)》 2015年 第2卷 第2期 页码 168-178 doi: 10.15302/J-FASE-2015061
关键词: common wheat yield potential lodging performance pushing resistance leaf area index
Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among
Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN
《农业科学与工程前沿(英文)》 2016年 第3卷 第4期 页码 363-367 doi: 10.15302/J-FASE-2016122
关键词: Hevea brasiliensis rubber yield breeding early evaluation tapping secondary laticifer differentiation
Risk factors of prognosis after acute kidney injury in hospitalized patients
null
《医学前沿(英文)》 2017年 第11卷 第3期 页码 393-402 doi: 10.1007/s11684-017-0532-9
The risk factors, especially laboratory indicators, of prognosis after acute kidney injury (AKI) remain unclear. We conducted a retrospective survey of Chinese People’s Liberation Army General Hospital from January 1, 2012 to December 31, 2012 according to the AKI diagnosis standard issued by Kidney Disease Improving Global Outcomes. The epidemiological features and factors influencing hospital mortality and renal function recovery were evaluated through logistic regression analysis. Among 77 662 cases of hospitalized patients, 1387 suffered from AKI. The incidence rate and mortality of AKI were 1.79% and 14.56%, respectively. Multivariate logistic regression analysis revealed that high AKI stage, age greater than 80 years, neoplastic disease, low cardiac output, increased white blood cell count, and decreased platelet count and serum albumin levels were the risk factors affecting the mortality of AKI patients. Conversely, body mass index between 28 and 34.9 was a protective factor. Increased AKI stage, tumor disease, post-cardiopulmonary resuscitation, and RRT were the risk factors of renal function recovery upon discharge. In addition to traditional risk factors, white blood cell count, platelet count, albumin, and BMI were the predictors of the mortality of AKI patients. No laboratory indicators were found to be the risk factors of renal function recovery in AKI patients.
Genomics approaches to unlock the high yield potential of cassava, a tropical model plant
Shengkui ZHANG,Ping’an MA,Haiyan WANG,Cheng LU,Xin CHEN,Zhiqiang XIA,Meiling ZOU,Xinchen ZHOU,Wenquan WANG
《农业科学与工程前沿(英文)》 2014年 第1卷 第4期 页码 259-266 doi: 10.15302/J-FASE-2014043
关键词: cassava genomics yield potential adaptability tropical model
Xue Liu, Lingtao Kong, Shengtao Xu, Chaofan Liu, Fengyun Ma
《化学科学与工程前沿(英文)》 2021年 第15卷 第5期 页码 1099-1110 doi: 10.1007/s11705-020-2008-8
关键词: iron molybdate catalyst metal oxides methanol to formaldehyde Co/Mo ratio formaldehyde yield
Electrorheological damper for the ultra-precision air bearing stage
ZHU Yu, JIA Songtao, CHEN Yaying, LI Guang
《机械工程前沿(英文)》 2008年 第3卷 第2期 页码 158-163 doi: 10.1007/s11465-008-0031-4
关键词: post-yield linear-motor advanced sliding pre-yield position
标题 作者 时间 类型 操作
PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL
期刊论文
PLANT DENSITY, IRRIGATION AND NITROGEN MANAGEMENT: THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL
Xiuwei GUO, Manoj Kumar SHUKLA, Di WU, Shichao CHEN, Donghao LI, Taisheng DU
期刊论文
Collapse fragility assessment of steel roof framings with force limiting devices under transient wind
Linjia BAI, Yunfeng ZHANG
期刊论文
The effect of conservation tillage on crop yield in China
Hongwen LI,Jin HE,Huanwen GAO,Ying CHEN,Zhiqiang ZHANG
期刊论文
Breeding strategies for increasing yield potential in super hybrid rice
Shihua CHENG,Xiaodeng ZHAN,Liyong CAO
期刊论文
Meta-analysis of the risk factors of breast cancer concerning reproductive factors and oral contraceptive
Qiong DAI MD, Bei LIU MD, Yukai DU MM,
期刊论文
Estimating the effect of urease inhibitor on rice yield based on NDVI at key growth stages
Kailou LIU,Yazhen LI,Huiwen HU
期刊论文
Lodging resistance and yield potential of winter wheat: effect of planting density and genotype
Yonggui XIAO,Jianjun LIU,Haosheng LI,Xinyou CAO,Xianchun XIA,Zhonghu HE
期刊论文
Relationship between the number of tapping-induced secondary laticifer lines and rubber yield among
Yueyi CHEN,Xinsheng GAO,Xiaofei ZHANG,Weimin TIAN
期刊论文
Genomics approaches to unlock the high yield potential of cassava, a tropical model plant
Shengkui ZHANG,Ping’an MA,Haiyan WANG,Cheng LU,Xin CHEN,Zhiqiang XIA,Meiling ZOU,Xinchen ZHOU,Wenquan WANG
期刊论文
iron-molybdate catalysts with various metal oxides by a mechanochemical method: enhanced formaldehyde yield
Xue Liu, Lingtao Kong, Shengtao Xu, Chaofan Liu, Fengyun Ma
期刊论文