Irrigation and nitrogen effects on the leaf chlorophyll content and grain yield of maize in different crop years

Széles, Adrienn; Megyes, Attila; Nagy, János

doi:10.1016/j.agwat.2012.02.001

Cited by 52 publications

(29 citation statements)

References 45 publications

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“…The conspicuous visual symptoms of leaf senescence are the loss of chlorophyll pigments, desiccation, and eventual abscission (He and Wasaki, 2005). The initiation and progression of leaf senescence can be modulated by internal factors (such as plant hormones and plant growth regulators) and various environmental factors, such as temperature or drought status, mineral supplying capacity (Masclaux et al, 2008b;Kosgey et al, 2013), soil water conditions (Széles et al, 2012;Thoiron and Briat, 1999), and soil compactions . Subsoil compaction is caused by ever increasing wheel loads in agricultural machinery for agricultural land, which is becoming a global problem.…”

Section: Introductionmentioning

confidence: 99%

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Cao

Yang

et al. 2017

Emir J Food Agric

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This study aims to investigate the responses of carbon assimilation, grain yield, leaf stay-green rate, nitrogen uptake and distribution to soil compaction in the hard plow pan caused by repeated use of tractor-driven cultivator in Northeast China. The typical hybrid maize variety “Zhengdan 958” was exposed to two treatments of simulated plow pan (SP) and simulated subsoiling (SS, control) in pot experiments from 2012 to 2014. Compared with SS, SP significantly reduced net photosynthetic rate (Pn) during growth stage, leading to a decrease in dry matter accumulation (DMA) and grain yield (GY) in three consecutive experimental years. Leaf stay-green degrees (LSD), which showed a fast descending trend from 20 days after silking (DAS), significantly decreased in the later filling stage under SP treatment. The translocation eﬃciency of the stored N (TEN) in stalk and leaf to the grain during pre-silking was enhanced, whereas leaf and grain N concentration (LNC/GNC), together with N accumulation amounts at maturity were significantly reduced under SP treatment. Also, plough pan reduced the N distribution to the organs of stalk, leaf and grain. In conclusion, subsoiling is a possible way to delay leaf senescence and achieve higher DMA and GY, and increased grain N in the corn belt of Northeast China.

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Section: Introductionmentioning

confidence: 99%

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Cao

Yang

et al. 2017

Emir J Food Agric

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“…Generally, the highest portion of agricultural land is cultivated by maize followed by wheat and other crops (Széles et al 2012), where the common agricultural system is rainfed system. Thus, any changes of rainfall patterns could have a bad impact on crop productivity.…”

Section: Discussionmentioning

confidence: 99%

Precipitation pattern changes and response of vegetation to drought variability in the eastern Hungary

et al. 2020

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Background: Recently, many parts of Hungary, as well as central Europe, have been hit by successive extreme climatic events. The main aim of this research was to analyze hydrological and agricultural drought episodes in the Debrecen Region in eastern Hungary from 1950 to 2010. Thus, data of monthly precipitation were collected and tested. After that, three indices were applied, the Precipitation Concentration Index (PCI), dry Precipitation Concentration Index (dPCI), and the Standardized Precipitation Index (SPI). Meanwhile, the correlation between SPI and the normalized difference vegetation index (NDVI) was calculated. Results: The results showed that the PCI values ranged between 9.44 and 15.8 with an average of 11.8, while the dPCI values ranged between 8.6 and 20.7 with an average of 10.9, which indicates heterogeneity in rainfall distribution from year to year. More than 103 events of severe agricultural drought were detected for the whole studied period. In connection to this, severe hydrological drought was recorded in 16% of the total monthly rainfall events from 1950 to 2010. Interestingly, a significant correlation was obtained between SPI-3, -6 (i.e., drought), and NDVI in the summer season. Conclusions:The SPI index could provide an easy tool for drought monitoring meanwhile drought evaluation and monitoring should be taken seriously in the central Europe.

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“…Edmar Vinícius de CARVALHO [1,*] , Flávio Sérgio AFFÉRRI [2] , Joenes Mucci PELUZIO [1] , Eliane Aparecida ROTILI [1] , Michel Antônio DOTTO [1] e Lucas Alves de FARIA [1] [1] Universidade Federal do Tocantins, campus Universitário de Gurupi. Rua Badejós, S/N Zona Rural.…”

Section: Genetics Parameters and Association Of Nue Methods In Maize unclassified

Parâmetros genéticos e associação de metodologias de EUN no milho sob diferentes doses de nitrogênio

Carvalho

Afférri

Pelúzio

et al. 2016

J. Bioen. Food Sci.

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Irrigation and nitrogen effects on the leaf chlorophyll content and grain yield of maize in different crop years

Cited by 52 publications

References 45 publications

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Precipitation pattern changes and response of vegetation to drought variability in the eastern Hungary

Parâmetros genéticos e associação de metodologias de EUN no milho sob diferentes doses de nitrogênio

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