Response of maize root growth to irrigation and nitrogen management strategies in semi-arid loamy sandy soil

Chilundo, Mario; Joel, Abraham; Wesström, Ingrid; Brito, Rui; Messing, Ingmar

doi:10.1016/j.fcr.2016.10.005

Cited by 63 publications

(43 citation statements)

References 37 publications

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“…Roots are important organs for plant growth and mediators of associations between the effects of organic amendments on soils, shoots, and grain yields [16]. Root growth is crucial in optimizing crop yield and water productivity in semi-arid regions [17,18]. Previous studies have provided important insights into organic amendments in terms of regulating plant root growth.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have provided important insights into organic amendments in terms of regulating plant root growth. The nutrients released from decomposing organic materials play a key role in the penetration and establishment of plant roots [19][20][21], which helps the crop to utilize water and nutrients from deeper layers and to maintain high water productivity under soil water stress conditions [18,22]. The type of applied organic amendments is also an important factor [14,23].…”

Section: Introductionmentioning

confidence: 99%

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Organic Amendments Influence Soil Water Depletion, Root Distribution, and Water Productivity of Summer Maize in the Guanzhong Plain of Northwest China

Zhao

Cai

et al. 2018

Water

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Organic amendments improve general soil conditions and stabilize crop production, but their effects on the soil hydrothermal regime, root distribution, and their contributions to water productivity (WP) of maize have not been fully studied. A two-year field experiment was conducted to investigate the impacts of organic amendments on soil temperature, water storage depletion (SWSD), root distribution, grain yield, and the WP of summer maize (Zea mays L.) in the Guanzhong Plain of Northwest China. The control treatment (CO) applied mineral fertilizer without amendments, and the three amended treatments applied mineral fertilizer with 20 Mg ha−1 of wheat straw (MWS), farmyard manure (MFM), and bioorganic fertilizer (MBF), respectively. Organic amendments decreased SWSD compared to CO, and the lowest value was obtained in MBF, followed by MWS and MFM. Meanwhile, the lowest mean topsoil (0–10 cm) temperature was registered in MWS. Compared to CO, organic amendments generally improved the root length density (RLD) and root weight density (RWD) of maize. MBF showed the highest RLD across the whole soil profile, while MWS yielded the greatest RWD to 20 cm soil depth. Consequently, organic amendments increased grain yield by 9.9–40.3% and WP by 8.6–47.1% compared to CO, and the best performance was attained in MWS and MBF. We suggest that MWS and MBF can benefit the maize agriculture in semi-arid regions for higher yield, and WP through regulating soil hydrothermal conditions and improving root growth.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Organic Amendments Influence Soil Water Depletion, Root Distribution, and Water Productivity of Summer Maize in the Guanzhong Plain of Northwest China

Zhao

Cai

et al. 2018

Water

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“…Therefore, it is very important to obtain quantitative data on the root distribution of dense, dwarfed jujube trees, which created guidelines on row spacing as well as water and fertilizer management when planting jujube trees. Root weight density and root length density are two important indices that reflect root distribution [19] .…”

Section: Introductionmentioning

confidence: 99%

Effects of water-fertilizer coupling on root distribution and yield of Chinese Jujube trees in Xinjiang

Liu

et al. 2017

International Journal of Agricultural and Biological Engineering

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Water and fertilizer are the two main factors which promote the rapid growth of Jujube (Ziziphus jujuba) trees. Studies of root systems and the nutrition-use efficiency of dense, dwarfed fruit trees are limited, especially in an extremely arid region with drip irrigation. The experiment was conducted in a 12-year-old dwarf jujube planting basement in Hami from 2013 to 2015. In this experiment, root length density and root weight density were calculated and found to range from 75 cm to 275 cm in horizontal distance, and from 0 to 90 cm in vertical depth, treated with three drip irrigation quota gradients and three fertilizer rates with each treatment replicated three times. The results showed that, as the amount of nitrogen applied increased gradually, the jujubes' growth amount increased, reaching a maximum when an optimal concentration was applied. However, the jujubes' growth was inhibited, and the growth declined when the amount of nitrogen applied was more than the optimal concentration. At an appropriate level of nitrogen, the growth, yield and quality of jujube trees could be guaranteed. If the rate of nitrogen application was lowered, the jujubes' growth would inhibit, and hence the yield wound be seriously impacted. The optimal irrigation quota and fertilization amount were found to be 900 mm and 1500-1800 kg/hm 2 , respectively. The research findings were of significance and hold great promise for the development of the forestry and fruit industries in the arid region of Xinjiang. At the same time, there was a further study on irrigation technique, focusing on the combined effect of the dwarfed-planting technique and drip irrigation on jujube trees; with this information, the application efficiency of water and fertilizer can be optimized, leading to higher profits and economic efficiency.

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“…Os resultados da distribuição radicular das raízes do milho no perfil do solo têm apresentado ampla variação na literatura. Alguns trabalhos mostraram que em que mais de 80% da biomassa das raízes (finas e grossas) do milho estão na camada de 0-0,25 m (HIRTE et al, 2018), outros em que ocorreu incrementos na densidade das raízes até 0,25 m, decrescendo em maiores profundidades RICHNER, 2001b), bem como maior densidade de raízes nas camadas de 0,08-0,16 m e 0,16-0,24 m quando comparada a superficial em solos de textura franco-arenosa com gotejamento e/ou irrigação reduzida (CHILUNDO et al, 2017).…”

Section: Período Da Lavouraunclassified

“…Por vezes a quantidade e o comprimento de raízes em camadas superficiais são subestimadas em função do menor contato do solo com os tubos de acrílico, ou mesmo pelo distúrbio mais frequente nesses locais (BLACK et al, 2017). Entretanto, a dinâmica radicular do milho, e de outras gramíneas ao longo do perfil também pode estar sujeita as variações nos conteúdos de água (CHILUNDO et al, 2017) e nutrientes no perfil do solo (HIRTE et al, 2018), ou até mesmo resultante das ramificações das raízes axiais em profundidade. O alcance de camadas mais profundas pelo sistema radicular normalmente acontece abaixo da linha de semeadura do milho RICHNER, 2001b).…”

Section: Período Da Lavouraunclassified

Crescimento e decomposição de raízes finas e qualidade do solo sob sistemas integrados de agricultura, pecuária e floresta (São Carlos, SP)

Bieluczyk¹

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Agradeço a Deus por tornar essa etapa possível na minha vida. Ao meu pai Waldir Fabiano Bieluczyk, a minha mãe Ivone Irene Cachanosky Bieluczyk e ao meu irmão Leandro Bieluczyk, pelo amor, ensino, dedicação, força e apoio incondicional. Aos que contribuíram durante todo o período do doutorado na orientação, escrita e execução desse trabalho: minha orientadora Profa. Dra. Marisa de Cássia Piccolo; meu co-orientador Prof. Dr. Marcos Gervasio Pereira e meus supervisores na Embrapa Pecuária

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Response of maize root growth to irrigation and nitrogen management strategies in semi-arid loamy sandy soil

Cited by 63 publications

References 37 publications

Organic Amendments Influence Soil Water Depletion, Root Distribution, and Water Productivity of Summer Maize in the Guanzhong Plain of Northwest China

Organic Amendments Influence Soil Water Depletion, Root Distribution, and Water Productivity of Summer Maize in the Guanzhong Plain of Northwest China

Effects of water-fertilizer coupling on root distribution and yield of Chinese Jujube trees in Xinjiang

Crescimento e decomposição de raízes finas e qualidade do solo sob sistemas integrados de agricultura, pecuária e floresta (São Carlos, SP)

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