Soil tillage, residue management and site interactions affecting nitrogen use efficiency in maize and cotton in the Sudan Savanna of Africa

Nafi, Eeusha; Webber, Heidi; Danso, Isaac; Naab, Jesse B.; Frei, Michael; Gaiser, Thomas

doi:10.1016/j.fcr.2019.107629

Cited by 7 publications

(11 citation statements)

References 40 publications

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“…The soil available N was lower in the non-barrier treatment than that in the plastic treatment, which suggests that suaeda/maize intercropping facilitated interspecific competition to a certain content. Root interactions in an intercropping system may improve resource acquisition and adaptation to nutrient constraints [40,41]. For instance, the disadvantage of maize/barley intercropping was mainly due to the increased interspecific competition for N, P, and K between the two plants [42].…”

Section: Soil Nutrients' Variations In the Suaeda/maize Intercropping Systemsmentioning

confidence: 99%

The Effects of Suaeda salsa/Zea mays L. Intercropping on Plant Growth and Soil Chemical Characteristics in Saline Soil

Wang

Zhao

et al. 2022

Agriculture

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Halophytes possess the capacity to uptake high levels of salt through physiological processes and their root architecture. Here, we investigated whether halophyte/non-halophyte intercropping in saline soil benefits plant growth and contains root-dialogue between interspecific species. Field and pot experiments were conducted to determine the plant biomasses and salt and nutrient distributions in three suaeda (Suaeda salsa)/maize (Zea mays L.) intercropping systems, set up by non-barrier, nylon-barrier, and plastic-barrier between plant roots. The suaeda/maize intercropping obviously transferred more Na+ to the suaeda root zone and decreased salt and Na+ contents. However, the biomass of the non-barrier-treated maize was significantly lower than that of the nylon and plastic barrier-treated maize. There was lower available N content in the soil of the non-barrier treated groups compared with the plastic barrier-treated groups. In addition, the pH was lower, and the available nutrient content was higher in the nylon barrier, which suggested that rhizospheric processes might occur between the two species. Therefore, we concluded that the suaeda/maize intercropping would be beneficial to the salt removal, but it caused an adverse effect for maize growth due to interspecific competition, and also revealed potential rhizospheric effects through the role of roots. This study provides an effective way for the improvement of saline land.

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Section: Soil Nutrients' Variations In the Suaeda/maize Intercropping Systemsmentioning

confidence: 99%

The Effects of Suaeda salsa/Zea mays L. Intercropping on Plant Growth and Soil Chemical Characteristics in Saline Soil

Wang

Zhao

et al. 2022

Agriculture

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“…Previous studies have demonstrated that compared with straw mulching with minimum tillage, straw deep burial with plowing and straw shallow burial with rotary tillage can improve the soil structure and root growth environment, reduce the soil bulk density of the 0-20 cm arable layer, and increase the permeability and water retention performance of the soil, which promote root expansion and improve the capacity of roots to absorb water and nutrients [32]. Straw application with plowing tillage can restrict the horizontal water flow, promote straw decomposition, and increase soil moisture content and accumulation of available nutrients, thereby increasing the utilization of nitrogen fertilizer and maize grain yield [33]. In addition, the maize grain yield is higher with straw deep burial with plowing compared to that with straw shallow burial [34].…”

Section: Discussionmentioning

confidence: 99%

Straw Mulching with Minimum Tillage Is the Best Method Suitable for Straw Application under Mechanical Grain Harvesting

Lei

Wang

et al. 2021

Scientific Programming

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Mechanical grain harvesting is a crop production development direction. However, the residue management methods suitable for mechanical grain harvesting have been not established. In order to study the effect of residue management modes on maize yield formation and explore the best residue management methods for mechanical grain harvesting, four crop field surveys were carried out in Southwest China. Crops were mechanically harvested, and the residues were shredded and returned to the field using various straw application methods including straw deep burial with plowing (SDBP), straw shallow burial with rotary tillage (SSBRT), and straw mulching with minimum tillage (SMMT). The first-season rape residues were returned to the field, and the second-season maize yield under SDBP and SSBRT was significantly higher than that under SMMT. However, with the increase in rounds of residue application, compared with SDBP and SSBRT, SMMT continuously increased the soil moisture content in the 0–30 cm soil layer at the early stage of maize growth, increased the soil alkaline-hydrolyzed nitrogen content in the 0–20 cm and 40–60 cm layers, and reduced the soil compaction under 40 cm layer, which were more conducive to the root system growth. Maize yield with the SMMT increased by 5.4% compared with that of the previous season, while the yields with SDBP and SSBRT decreased by 16.7% and 12.7%, respectively, compared with those of the previous season. In conclusion, it is recommended to employ the SMMT method during crop mechanical harvesting, which is of great significance to improve soil quality and increase maize grain yield.

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“…This region has a monomodal rainfall regime of 3-6 months from May to October with a mean rainfall ranges between 900 mm to 1000 mm, while the mean temperature is 15 ˚C during the night and 40 ˚C during the day in the rainy season (Danso et al, 2018a(Danso et al, , 2018bKpongor, 2007). The mean monthly cumulative rainfall in Dano and Dassari during the maize growing seasons (June to October) in 2014 and 2016 were 780 mm and 850 mm, respectively (Nafi et al, 2019). Monthly mean air temperature over the maize growing seasons (June to October) in both Dano and Dassari was 27 ˚C.…”

Section: Site Descriptionmentioning

confidence: 96%

“…The field experiments to calibrate and evaluate the DSSAT tillage model have been described earlier (Danso, 2015;Danso et al, 2018aDanso et al, , 2018bNafi et al, 2020Nafi et al, , 2019. The experiments were conducted from 2012 to 2016 on farmers' fields in Dassari (10˚49´N, 1˚04´E), Atakora Province, Republic of Benin, and in Dano (11˚10´N, 2˚38´W), Ioba province, Burkina-Faso.…”

Section: Site Descriptionmentioning

confidence: 99%

“…Each site had two different soil types based on topographical position (footslope and upslope), such that a total of four parallel trials were set up on four different soil types. According to the FAO classification system (Nafi et al, 2019(Nafi et al, , 2020 These soils differ in many characteristics and are described in detail in Supplementary Table 1. As described by Nafi et al, 2020, there are significant differences in the rooting depth, the contents of clay, gravel, and available soil-water among these soil types.…”

Section: Site Descriptionmentioning

confidence: 99%

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Can reduced tillage buffer the future climate warming effects on maize yield in different soil types of West Africa?

Nafi

Webber

Danso³

et al. 2021

Soil and Tillage Research

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Soil tillage, residue management and site interactions affecting nitrogen use efficiency in maize and cotton in the Sudan Savanna of Africa

Cited by 7 publications

References 40 publications

The Effects of Suaeda salsa/Zea mays L. Intercropping on Plant Growth and Soil Chemical Characteristics in Saline Soil

The Effects of Suaeda salsa/Zea mays L. Intercropping on Plant Growth and Soil Chemical Characteristics in Saline Soil

Straw Mulching with Minimum Tillage Is the Best Method Suitable for Straw Application under Mechanical Grain Harvesting

Can reduced tillage buffer the future climate warming effects on maize yield in different soil types of West Africa?

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