Search Results - "Field crops research"

Deep convolutional neural networks for rice grain yield estimation at the ripening stage using UAV-based remotely sensed images by Yang, Qi, Shi, Liangsheng, Han, Jinye, Zha, Yuanyuan, Zhu, Penghui

“…•The ability of CNN to estimate rice grain yield using UAV images is investigated.•The correlation between VI and rice grain yield is low at the ripening…”
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Rice yields and water use under alternate wetting and drying irrigation: A meta-analysis by Carrijo, Daniela R., Lundy, Mark E., Linquist, Bruce A.

“…•Mild AWD reduced water use by 23% compared to CF while maintaining yield.•AWD performed better in soils with pH<7 and soil carbon content ≥1%.•The influence…”
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When does no-till yield more? A global meta-analysis by Pittelkow, Cameron M., Linquist, Bruce A., Lundy, Mark E., Liang, Xinqiang, van Groenigen, Kees Jan, Lee, Juhwan, van Gestel, Natasja, Six, Johan, Venterea, Rodney T., van Kessel, Chris

“…•Global meta-analysis of no-till relative to conventional tillage yields using 678 studies.•No-till reduced yields, on average, by 5.1% across 50 crops and…”
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Intercropping maize and soybean increases efficiency of land and fertilizer nitrogen use; A meta-analysis by Xu, Zhan, Li, Chunjie, Zhang, Chaochun, Yu, Yang, van der Werf, Wopke, Zhang, Fusuo

“…•A global meta-analysis was conducted on maize/soybean intercropping.•Average land equivalent ratio (LER) was 1.32 ± 0.02.•The average value of fertilizer…”
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Field crops and the fear of heat stress—Opportunities, challenges and future directions by Prasad, P.V. Vara, Bheemanahalli, R., Jagadish, S.V. Krishna

“…•Physiological responses to heat stress coinciding with flowering in pulses and oilseeds is limited.•Categorizing responses into tolerance, escape or avoidance…”
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Does crop rotation yield more in China? A meta-analysis by Zhao, Jie, Yang, Yadong, Zhang, Kai, Jeong, Jaehak, Zeng, Zhaohai, Zang, Huadong

“…•Crop rotation increased yields by 20% compared to continuous monoculture.•Rotation performed better in coarse or medium soil texture and medium level of…”
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Long-term effects of tillage and straw management on soil organic carbon, crop yield, and yield stability in a wheat-maize system by Xu, Jing, Han, Huifang, Ning, Tangyuan, Li, Zengjia, Lal, Rattan

“…•ST and NT increased SOC compared to CT.•SOC, maize yield, and wheat yield increased during 11 yr.•Crop yield was strongly and positively correlated with SOC…”
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Yield gap analysis with local to global relevance—A review by van Ittersum, Martin K., Cassman, Kenneth G., Grassini, Patricio, Wolf, Joost, Tittonell, Pablo, Hochman, Zvi

“…► We define the concepts relevant for yield gap analysis. ► We review different methods for local and global yield gap analyses. ► Global methods are coarse…”
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Biochar addition persistently increased soil fertility and yields in maize-soybean rotations over 10 years in sub-humid regions of Kenya by Kätterer, Thomas, Roobroeck, Dries, Andrén, Olof, Kimutai, Geoffrey, Karltun, Erik, Kirchmann, Holger, Nyberg, Gert, Vanlauwe, Bernard, Röing de Nowina, Kristina

“…•Yield responses to biochar persisted for 10 years, or 20 growing seasons.•Variability in grain yield decreased when biochar and fertiliser were…”
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Root distribution by depth for temperate agricultural crops by Fan, Jianling, McConkey, Brian, Wang, Hong, Janzen, Henry

“…•A general root distribution with depth that includes a maximum crop rooting depth was not available previously. This contribution will improve…”
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Fertilizer placement to improve crop nutrient acquisition and yield: A review and meta-analysis by Nkebiwe, Peteh Mehdi, Weinmann, Markus, Bar-Tal, Asher, Müller, Torsten

“…•Fertilizer placement in soil improves plant nutrient-aquisition.•Many fertilizer placement techniques have been developed.•Fertilizer placement leads to…”
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Impact of high temperatures in maize: Phenology and yield components by Lizaso, J.I., Ruiz-Ramos, M., Rodríguez, L., Gabaldon-Leal, C., Oliveira, J.A., Lorite, I.J., Sánchez, D., García, E., Rodríguez, A.

“…•Maize responses to heat were monitored over three years under a wide range of temperatures.•Maize phenology was well captured with the simplified beta…”
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Nitrogen and rice straw incorporation impact nitrogen use efficiency, soil nitrogen pools and enzyme activity in rice-wheat system in north-western India by Sharma, Sandeep, Singh, Pritpal, Choudhary, O.P., Neemisha

“…•Rice straw incorporation at 7.5 Mg ha−1 yr−1for 3 weeks with fertilizer-N application of 120 kg N ha−1is the best option for achieving higher crop…”
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Coupling effects of water and fertilizer on yield, water and fertilizer use efficiency of drip-fertigated cotton in northern Xinjiang, China by Wang, Haidong, Wu, Lifeng, Cheng, Minghui, Fan, Junliang, Zhang, Fucang, Zou, Yufeng, Chau, Henry Wai, Gao, Zhijian, Wang, Xiukang

“…•Field experiments of cotton under drip fertigation were studied in the northwest of China.•Full irrigation 1.0 ETc obtained the highest yield and partial…”
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Does straw return increase crop yield in the wheat-maize cropping system in China? A meta-analysis by Islam, Mahbub Ul, Guo, Zichun, Jiang, Fahui, Peng, Xinhua

“…Straw return into agricultural soil is one of the most important management practices in China. However, the direction and magnitude of crop yield to straw…”
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Retrieving LAI, chlorophyll and nitrogen contents in sugar beet crops from multi-angular optical remote sensing: Comparison of vegetation indices and PROSAIL inversion for field phenotyping by Jay, Sylvain, Maupas, Fabienne, Bendoula, Ryad, Gorretta, Nathalie

“…•Multi-angular optical remote sensing is used to phenotype sugar beet plant traits.•Vegetation indices and PROSAIL inversion are compared.•Both approaches are…”
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Meta-analysis of green manure effects on soil properties and crop yield in northern China by Ma, Dengke, Yin, Lina, Ju, Wenliang, Li, Xiankun, Liu, Xiaoxiao, Deng, Xiping, Wang, Shiwen

“…•Evaluation of green manure application effect by meta-analysis.•Green manure can significantly improve soil nutrient content.•Green manures’ type affects…”
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Biochar improves phosphorus use efficiency of organic-inorganic fertilizers, maize-wheat productivity and soil quality in a low fertility alkaline soil by Arif, Muhammad, Ilyas, Muhammad, Riaz, Muhammad, Ali, Kawsar, Shah, Kamran, Ul Haq, Izhar, Fahad, Shah

“…•Biochar integration with organic and inorganic fertilizer enhanced maize-wheat productivity and soil quality.•No negative effects of change in pH and EC were…”
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Improving water use efficiency and grain yield of winter wheat by optimizing irrigations in the North China Plain by Xu, Xuexin, Zhang, Meng, Li, Jinpeng, Liu, Zuqiang, Zhao, Zhigan, Zhang, Yinghua, Zhou, Shunli, Wang, Zhimin

“…•Irrigation at jointing and anthesis (JA) achieved the highest grain yield and WUE among two irrigations.•JA increased WUE by coordinating the pre- and…”
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Dynamic monitoring of NDVI in wheat agronomy and breeding trials using an unmanned aerial vehicle by Duan, T., Chapman, S.C., Guo, Y., Zheng, B.

“…•A high throughput platform using UAV and multi-spectral camera to extract phenotypes in plot scale.•NDVI measured from air had high correlation with hand-held…”
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