Responses of photosynthetic rates and yield/quality of main crops to irrigation and manure application in the black soil area of Northeast China

Liu, Xiaobing; Herbert, Steven; Jin, Jian; Zhang, Qiuying; Wang, Guanghua

doi:10.1023/b:plso.0000035553.53865.ec

Cited by 31 publications

(17 citation statements)

References 19 publications

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“…Drought effect alleviation by N application was also reported by Liu et al (2004). The present work indicates that the maize genetic improvement for low g s and anthesis-silking interval, under N supply, could be an important approach for drought tolerance and water economy in agriculture.…”

Section: Stomatal Conductance Of Maize Under Water and Nitrogen Deficitssupporting

confidence: 77%

Stomatal conductance of maize under water and nitrogen deficits

Médici

Azevedo

Canellas

et al. 2007

Pesq. agropec. bras.

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-The objective of this work was to evaluate the effect of drought and nitrogen (N) stresses on stomatal conductance of three maize cultivars grown in the field. The stomatal conductance of Sol da Manhã variety (BRS 4157) and Pioneer 6875 hybrid, under drought and high N, was lower than under drought and low N, which indicates drought tolerance, since these cultivars did not exhibit reduction in grain yield by drought, as observed for Amarelão variety, which flowered under more severe drought. 'Sol da Manhã' exhibited shorter anthesissilking interval under high N than under low N, an additional indication of tolerance.Index terms: Zea mays, drought tolerance, anthesis-silking interval. Condutância estomática em milho em condições de deficiência de água e nitrogênioResumo -O objetivo deste trabalho foi avaliar o efeito do deficit hídrico e de nitrogênio (N) sobre a condutância estomática, em três cultivares de milho cultivadas em campo. A condutância estomática da variedade Sol da Manhã (BRS 4157) e do híbrido Pioneer 6875, em condições de seca e alto teor de N, foi menor que com seca e baixo teor N, o que indica tolerância à seca, pois estas cultivares não tiveram a produção de grãos reduzida com a seca, como ocorreu com a variedade Amarelão, que floresceu sob condições de seca mais severa. 'Sol da Manhã' exibiu maior sincronia entre pendoamento e espigamento com alto teor de N do que com baixo N, o que é evidência adicional de tolerância.

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Section: Stomatal Conductance Of Maize Under Water and Nitrogen Deficitssupporting

confidence: 77%

Stomatal conductance of maize under water and nitrogen deficits

Médici

Azevedo

Canellas

et al. 2007

Pesq. agropec. bras.

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“…The spatial changes in V PD , g c , and S tress suggest that high V PD corresponds with low g c and S tress , and low V PD in contrast corresponds with high g c and S tress . Such phenomena are consistent with crop growth mechanisms in which plants typically respond to high V PD by reducing stomatal conductance (g c ), which effectively retains soil moisture for periods with less evaporative demand (Sinclair et al, 1984) and meanwhile reduces S tress (Ray et al, 2002;Hetherington and Woodward, 2003;Liu et al, 2004;Ribaut et al, 2009).…”

Section: Consistent Patterns Of Variability In Climate and Soil Watersupporting

confidence: 60%

How ENSO affects maize yields in China: understanding the impact mechanisms using a process-based crop model

et al. 2015

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ABSTRACT:The El Niño Southern Oscillation (ENSO) is one of the main factors influencing global climate variability and consequently has a major effect on crop yield variability. However, most studies have been based on statistical approaches, which make it difficult to discover the underlying impact mechanisms. Here, using process-based crop model Model to Capture the Crop-Weather relationship over a Large Area (MCWLA)-Maize, we found a consistent spatial pattern of maize yield variability in association with ENSO between MCWLA-Maize model outputs and observations. During El Niño years, most areas of China, especially in the north, experience a yield increase, whereas some areas in the south have a decrease in yields. During La Niña years, there is an obvious decline in yields, mainly in the north and northeast, and a general increase in the south. In-depth analyses suggest that precipitation P rather than temperature T and solar radiation S during the maize growing season is the main cause of ENSO-induced maize yield variability in northern and northeastern China. Although a 2 ∘ C change of T can affect maize yields more than a 20% change of P, greater changes of P contribute more to maize yield variability during ENSO years. In general, maize yields in drier regions are much more sensitive to P variability than those in wetter areas. All changes in meteorological variables, including T, P, S, and vapour pressure deficit (V PD ) during ENSO years, affect yield variability mainly through their effects on water stress. Our results suggest that more effective agricultural information can be provided to government decision makers and farmers by developing a food security warning system based on the MCWLA-Maize model and ENSO forecast information.

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“…A higher content was achieved in (2007) established that irrigation levels had no effect on the protein content of soybean. The present results also differ from those of other studies (Liu et al 2004, Candogan et al 2013) that reported a decrease in protein content as soybean yield was maximized by irrigation.…”

Section: Resultscontrasting

confidence: 99%

Yield and chemical composition of soybean seed under different irrigation regimes in the Vojvodina region

Kresović¹,

Gajić²,

Tapanarova³

et al. 2017

PLANT SOIL ENVIRON

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The goal of the present research is to determine an effective sprinkler irrigation strategy for soybean [Glycine max (L.) Merr.] in temperate climate conditions, in order to maximize yields and seed quality. A three-year field experiment with four different irrigation treatments was conducted on Calcic Chernozem in the Vojvodina region of Serbia. The irrigation regimes included: no irrigation; full irrigation (I100); and two deficit irrigation treatments – 65% of I100 (I65) and 40% of I100. The irrigation treatments generally had a statistically significant effect on the increase of soybean yield and protein content. Irrigation did not have a significant effect on the oil content. In general, irrigation increased K, P, Mg, Mn, Cu, Zn and B concentrations and decreased Ca and Fe concentrations in soybean seed. The results show that irrigation with the largest amount of water (treatment I100) provided no potential benefit in terms of soybean yield and chemical composition. Treatment I65, which exhibited the most favourable watering conditions, is the best choice to maximize yield and ensure a good chemical composition of soybean under these agroecological conditions.

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Responses of photosynthetic rates and yield/quality of main crops to irrigation and manure application in the black soil area of Northeast China

Cited by 31 publications

References 19 publications

Stomatal conductance of maize under water and nitrogen deficits

Stomatal conductance of maize under water and nitrogen deficits

How ENSO affects maize yields in China: understanding the impact mechanisms using a process-based crop model

Yield and chemical composition of soybean seed under different irrigation regimes in the Vojvodina region

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