Effect of nitrogen regulation on the epidemic characteristics of intercropping faba bean rust disease primarily depends on the canopy microclimate and nitrogen nutrition

Guo, Zengpeng; Luo, Chaosheng; Dong, Yan; Dong, Kun; Zhu, Jinhui; Ma, Liankun

doi:10.1016/j.fcr.2021.108339

Cited by 13 publications

(12 citation statements)

References 27 publications

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“…Recently Shtaya et al [ 19 ] also identified the mixture of faba bean and barley as the most effective in reducing rust (35% in their case) over mixtures with other cereals. Other authors, Guo et al [ 20 ] and Luo et al [ 21 ], only tested faba bean mixed with wheat and obtained rust reductions in the range of 20–50% for the different treatments they tested. On the contrary, Kamalongo and Cannon [ 26 ] did not find rust reduction in faba bean combined with wheat.…”

Section: Discussionmentioning

confidence: 99%

“…We studied rust suppression on faba bean using alternate replacement intercropping, finding that barley appears to be a more effective accompanying crop to suppress rust infection than wheat. Shtaya et al [ 19 ] used mixed intercropping, and Guo et al [ 20 ] and Luo et al [ 21 ] used strip intercropping with a high number of wheat rows separating the rows of faba bean. Kamalongo and Cannon [ 26 ] did study alternate replacement for the combination of faba bean and wheat, and their results confirm ours.…”

Section: Discussionmentioning

confidence: 99%

“…However, given their experimental design (mixed intercropping), other mechanisms such as inoculum dilution or altered microenvironment may play a greater role. Likewise, Guo et al [ 20 ] and Luo et al [ 21 ] have found variations in the plant microenvironment when intercropped (towards higher humidity and temperature) that might account for at least some part of the decrease, but, considering the experimental design (strip intercropping), it is quite likely that there is a significant barrier effect.…”

Section: Discussionmentioning

confidence: 99%

“…With regard to faba bean, reports of disease suppression by intercropping with cereals include chocolate spot [ 10 , 13 , 15 ], fusarium wilt [ 16 , 17 ], rhizoctonia [ 18 ] and rust [ 19 , 20 , 21 ]. The use of cultivar mixtures for reducing disease incidence in faba bean has been less studied, with no reports available so far.…”

Section: Introductionmentioning

confidence: 99%

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Crop Diversification to Control Rust in Faba Bean Caused by Uromyces viciae-fabae

Villegas-Fernández

Amarna

Moral

et al. 2023

JoF

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Uromyces viciae-fabae is a highly specific biotrophic fungus that causes faba bean rust, one of the major diseases affecting this crop. We have assessed the feasibility of using intercropping (faba bean mixed with either pea, wheat or barley) or mixtures of susceptible and resistant cultivars to control rust both under field and controlled conditions. The results of four field intercropping experiments showed a significant reduction in rust severity on faba bean when intercropped with barley (average 22% reduction) but not with the other combinations. This reduction was also confirmed in studies under controlled conditions. The barrier effect of barley appears as the main mechanism explaining rust suppression. Additional experiments under controlled conditions showed that intercropping with barley did not influence the N content of faba bean and that different levels of N nutrition had no impact on rust severity in any case. The cultivar mixture field experiments showed that rust severity in the susceptible cultivar decreased as the proportion of the resistant cultivar in the mixture increased. The importance of the barrier effect of the resistant cultivars was determined in an experiment under controlled conditions. It can be concluded that crop diversification offers great potential to reduce rust in faba bean.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Crop Diversification to Control Rust in Faba Bean Caused by Uromyces viciae-fabae

Villegas-Fernández

Amarna

Moral

et al. 2023

JoF

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“…Compared with monocultures, intercropping, the cultivation of two or more crop species in the same field, can make full use of land, water, light, and nutrients (Li et al, 2001). Such improvements often result from the combination of the different canopy structures and root systems of the two crops during the cogrowth period, which increases agroecosystem biodiversity and decrease pest and disease incidences (Guo et al, 2021). Cereal/legume intercropping systems show particularly promising results in modern agriculture.…”

mentioning

confidence: 99%

Changes in rhizosphere soil nitrogen fractions associated with enzyme activities are linked to the microbial community following intercropping combined with nitrogen fertilization

Liu

Gong

2022

Land Degrad Dev

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Cereal/legume intercropping is effective for reducing chemical fertilizer inputs and achieving sustainable development. However, the effects of intercropping combined with nitrogen (N) fertilization on rhizosphere soil microbial characteristics and N dynamics–enzyme activity relationships remain unclear. A field experiment was performed to analyze rhizosphere soil N fractions, related enzyme activities, and microbial communities on the Chinese Loess Plateau. The results showed that proso millet/mung bean intercropping (PM) combined with suitable N fertilization increased the total nitrogen (TN), ammonium (NH4+), nitrate (NO3−), and microbial biomass nitrogen (MBN) contents and enzyme activities, whereas the high N input (especially for N3) showed a decreasing trend. MBN was more closely associated with enzyme activities than were other N fractions. Intercropping and N fertilization strongly affected the bacterial and fungal diversity and community composition, as shown by a shift from K– to r–strategist dominance. Proteobacteria was the dominant bacterial phylum and was more abundant under intercropping than under sole cropping (SP), whereas Acidobacteria and Chloroflexi abundances were lower under PM than under SP. Ascomycota and Mortierellomycota were dominant fungal phyla whose abundances were significantly associated with rhizosphere soil N fractions and enzyme activities, although a high N input may inhibit microbial growth under intercropping systems. Overall, the observed changes in rhizosphere soil enzyme activities were most strongly affected by MBN driven by soil bacteria and fungi. These results provide scientific guidance for using rational fertilizer and further studying the mechanisms allowing reduced fertilizer use and increased efficiency under intercropping combined with N management.

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Intercropping chickpea–flax for yield and disease management

et al. 2023

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Effect of nitrogen regulation on the epidemic characteristics of intercropping faba bean rust disease primarily depends on the canopy microclimate and nitrogen nutrition

Cited by 13 publications

References 27 publications

Crop Diversification to Control Rust in Faba Bean Caused by Uromyces viciae-fabae

Crop Diversification to Control Rust in Faba Bean Caused by Uromyces viciae-fabae

Changes in rhizosphere soil nitrogen fractions associated with enzyme activities are linked to the microbial community following intercropping combined with nitrogen fertilization

Intercropping chickpea–flax for yield and disease management

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