Erosion and hydrological response in no-tillage subjected to crop rotation intensification in southern Brazil

Deuschle, Dinis; Minella, Jean Paolo Gomes; Hörbe, Tiago de Andrade Neves; Londero, Ana Lúcia; Schneider, Fabio José Andres

doi:10.1016/j.geoderma.2019.01.010

Cited by 60 publications

(45 citation statements)

References 32 publications

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“…In the SW with continuous crop production there are terraces (more specifically the level terraces), while in the CW with crop‐livestock integration there are no terraces implemented. Deuschle et al (2019), in a study on agricultural hillslopes in Southern Brazil concluded that even in no‐tillage under crop rotation intensification with high soil cover, complementary practices such as terraces are necessary to control runoff. Terraces, independent of the type, decrease the length of the hillside, but the level terrace type is built to retain all surface runoff (Denardin, Kochhann, Faganello, Denardin, & Santi, 2012; Gassman et al, 2006; Shi et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

“…However, it is known that the no‐tillage systems widely used by farmers in Brazil do not apply all the practices recommended by conservation agriculture, such as no‐tillage with crop rotation, high soil cover with plant residue and surface runoff control structures (Merten, Araújo, Biscaia, Barbosa, & Conte, 2015). Deuschle, Minella, Hörbe, Londero, and Schneider (2019), studied the erosion and hydrological response of crop rotation intensification in no‐tillage on a Nitisol with a high clay content (>50%) on agricultural hillslopes (length of 90 m and slope of 9%) in Southern Brazil. They observed that no‐tillage without crop rotation and without terraces was not enough to control runoff and soil erosion, even during low‐intensity events.…”

Section: Introductionmentioning

confidence: 99%

“…Most studies of water, sediment and nutrient losses in Brazil with soil tillage and management systems have been done in small plots with simulated or natural rainfall (Bertol et al, 2011; Bertol, Rizzi, Bertol, & Roloff, 2007; Denardin, Kochhann, Faganello, Sattler, & Manhago, 2008; Gebler, Bertol, Ramos, Louzada, & Miquelluti, 2012; Guadagnin, Bertol, Cassol, & Amaral, 2005; Silva & De Maria, 2011). Studies at greater scale are needed and field experiments with large plots in Brazil have been increased recently (Coblinski et al, 2019; Deuschle et al, 2019; Londero et al, 2018; Merten et al, 2015; Ramos et al, 2014). Losses of soil, water and agrochemicals in a watershed cannot be estimated by the sum of results from individual fields, even from large plots (Ding et al, 2016; Raclot et al, 2009; van de Giesen, Stomph, & de Ridder, 2005) so studies at watershed scale following the real field condition are essential to assess water quality (Capoane, Tiecher, Schaefer, Ciotti, & dos Santos, 2015; Gafur, Jensen, Borggaard, & Petersen, 2003; Martínez‐Casasnovas, Ramos, & Benites, 2016; Niu et al, 2015; Nu‐Fang, Zhi‐Hua, Lu, & Cheng, 2011; Shi et al, 2012; Shore et al, 2014; Shore et al, 2017) as well as to calibrate empirical mathematical models (Durães, de Mello, & Naghettini, 2011; Raclot et al, 2009; Shi et al, 2012; Tong & Chen, 2002; van de Giesen et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Impacts of soil use and management on water quality in agricultural watersheds in Southern Brazil

et al. 2020

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Worldwide, agriculture is considered one of the main activities that influence water quality. The objective of this work was to evaluate the influence of soil use and management on water quality at the small watershed scale, in Southern Brazil. One watershed is characterized by production of annual crop seeds under no‐tillage (zero tillage), with crop rotation and with terraces (Sarandi watershed—SW), while the other is characterized by production of grains in the summer and pasture with grazing in the winter, under no‐tillage, without crop rotation and without terraces (Coxilha watershed—CW). Flow and climatic data were measured during 2 years. Water samples were manually taken at precipitation events and base flow over 1 year for laboratory analysis. During events of high volume, most of the rainfall was converted to base flow in SW, while in CW, most of the rainfall was transformed into overland flow. Overall, higher concentrations and losses of sediments and nutrients occurred in the CW, mainly during precipitation events in the winter crops season. Of the total nitrogen concentration in water, approximately 3% was ammonium‐N and 58% was nitrate‐N, on average, in both watersheds. For total phosphorus concentration in water, more than 75% was particulate in both watersheds, however, the bioavailable phosphorus accounted for 70% of the total phosphorus in the SW and for 35% in the CW. The higher concentration of bioavailable phosphorus in the SW indicates a short‐term pollution potential, but in both watersheds, the water quality was impaired by the high concentrations of total phosphorus. In general, even with no‐tillage, the results highlight the importance of best management practices as terracing, riparian vegetation, crop rotation, better crop systems and fertilizer management to avoid degradation of water resources.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impacts of soil use and management on water quality in agricultural watersheds in Southern Brazil

et al. 2020

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“…Additionally, recent literature results showed that conservationist systems, such as the notillage system, fall short of what is expected when complementary practices, such as terraces, are not used when necessary (lONDERO et al, 2018). loss of water and nutrients in their soluble form by runoff may not be reduced by the presence of cover plants and minimum soil disturbance (DEUSCHlE et al, 2019;GONZAlEZ, 2018).…”

Section: Introductionmentioning

confidence: 99%

Losses of water, soil, and nutrients during high-intensity simulated rainfall in two soil management systems different sources of fertilization

Lemos¹,

Cassol

Barros

2020

Cienc. Rural

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The goal of this study was to quantify the water, soil, and soluble nutrient losses during high-intensity rainfall simulated in two soil preparation systems with four sources of fertilization. Forty-five days after the corn seeding, a 120 mm h-1 intensity rainfall was simulated during 90 min in field plots with conventional tillage (CT) or no-tillage (NT). Each system had four repetitions with the fertilizer treatments, including without fertilization, mineral, urban waste compost (UWC), and pig slurry. P, K, Ca, and K concentrations were measured in soluble form, in addition to electrical conductivity, pH, water, and soil losses. As expected, the greatest soil losses occurred with CT; however, the greatest water losses occurred with NT. Among the fertilizers, UWC was more efficient because it had the highest infiltration rates. The concentrations of P, K, Ca, and Mg did not exhibit any interaction between fertilization and soil tillage treatments. K was the nutrient that presented the greatest losses (kg ha-1) at the end of the simulated rainfall because of the highest concentrations (mg L-1) added to high runoff coefficients of 45% for CT and 77% for NT. Thus, the evaluated system with cover crops and minimum soil tillage was not sufficient to control nutrient transfer in the soluble form during intense rainfall events.

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“…In this context, a series of experiments were set up to study the impact of nutrient management practices on soybean in rotation with other crops under NT (; Silva et al, 1995; Antonangelo et al, 2019). Approximately 32 million ha are cultivated soybean under NT in Brazil (Deuschle et al, 2019; Fuentes‐Llanillo et al, 2018). Under NT, crop residues on the soil surface protect the soil against erosion, and provide considerable nutrient reserves that are slowly mineralized and released to future crops (Rosolem and Calonego, 2013).…”

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Soybean Production under Continuous Potassium Fertilization in a Long‐Term No‐Till Oxisol

et al. 2019

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Potassium (K) is essential for soybean production but over use of K fertilizer negatively impact the environment and farming profit. Therefore, the optimum K recommendation needs to be verified, especially in pedo‐environmental contrasting regions and long‐term cultivated areas. We evaluated the effects of continuous annual K fertilization on plant‐available K by Mehlich‐1 (KM‐1) and ion exchange resin (Kresin), plant uptake (Ktissue) and the yields of two soybean cultivars (Glycine max L.) grown in an Oxisol under long‐term no‐till (NT). The treatments included four K rates (0, 40, 75, and 110 kg ha–1) with four replications. Kresin was highly correlated with KM‐1 (R2 = 0.94, p < 0.0001). Plant‐available K was linearly correlated with Ktissue (trifoliate leaflets) with r of 0.76 and 0.82 (p < 0.0001) for KM‐1 and Kresin, respectively. Maximum KM‐1 and Kresin that expressed the highest KTissue concentrations were in the ranges of 1.72 ± 0.26 to 2.36 ± 0.35 and 2.58 ± 0.22 to 3.11 ± 0.33 mmolc K dm–3, respectively. The Ca+Mg/K ratios in tissues decreased by increasing K application. Soybean yields increased from 1823 to 2611 kg ha–1 as the rates of annual‐K application increased from 0 to 40 kg ha–1. Additional K application did not further improve yields. For yields, the maximum responsive soil test K was 2.16 ± 0.58 mmolc K dm–3 for KM‐1 and 3.42 ± 0.91 mmolc K dm–3 for Kresin; while the maximum responsive Ktissue at R2 stage was 14.5 ± 0.98 to 18.1 ± 2.2 g K kg–1. Our results confirm that soil test for plant‐available K and plant tissue test are important to guide K fertilizer recommendations. Core Ideas Plant available K extraction methods are compared. Soil test K is an important tool to guide annual fertilization for optimum soybean yield. K content in soybean trifoliate leaflets at R2 stage can serve as an indicator of K sufficiency levels.

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Erosion and hydrological response in no-tillage subjected to crop rotation intensification in southern Brazil

Cited by 60 publications

References 32 publications

Impacts of soil use and management on water quality in agricultural watersheds in Southern Brazil

Impacts of soil use and management on water quality in agricultural watersheds in Southern Brazil

Losses of water, soil, and nutrients during high-intensity simulated rainfall in two soil management systems different sources of fertilization

Soybean Production under Continuous Potassium Fertilization in a Long‐Term No‐Till Oxisol

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