Initial effect of shifting from traditional to no-tillage on runoff retention and sediment reduction under rainfall simulation

Soil Research ◽  
2021 ◽  
Author(s):  
Haytham Mohamed Salem ◽  
Ali Mohamed Ali ◽  
Weicheng Wu ◽  
Qihong Tu
Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1539 ◽  
Author(s):  
Artemi Cerdà ◽  
Jesús Rodrigo-Comino ◽  
Tuğrul Yakupoğlu ◽  
Turgay Dindaroğlu ◽  
Enric Terol ◽  
...  

There is an urgent need to implement environmentally friendly agriculture management practices to achieve the Sustainable Goals for Development (SDGs) of the United Nations by 2030. Mediterranean agriculture is characterized by intense and millennia-old tillage management and as a consequence degraded soil. No-Tillage has been widely examined as a solution for soil degradation but No-Tillage relies more on the application of herbicides that reduce plant cover, which in turn enhances soil erosion. However, No-Tillage with weed cover should be researched to promote organic farming and sustainable agriculture. Therefore, we compare Tillage against No-Tillage using weed cover as an alternative strategy to reduce soil losses in persimmon plantations, both of them under organic farming management. To achieve these goals, two plots were established at “La Canyadeta” experimental station on 25-years old Persimmon plantations, which are managed with Tillage and No-Tillage for 3 years. A survey of the soil cover, soil properties, runoff generation and initial soil losses using rainfall simulation experiments at 55 mm h−1 in 0.25 m2 plot was carried out. Soils under Tillage are bare (96.7%) in comparison to the No-Tillage (16.17% bare soil), with similar organic matter (1.71 vs. 1.88%) and with lower bulk densities (1.23 vs. 1.37 g cm3). Tillage induces faster ponding (60 vs. 92 s), runoff (90 vs. 320 s) and runoff outlet (200 vs. 70 s). The runoff discharge was 5.57 times higher in the Tillage plots, 8.64 for sediment concentration and 48.4 for soil losses. We conclude that No-tillage shifted the fate of the tilled field after 3 years with the use of weeds as a soil cover conservation strategy. This immediate effect of No-Tillage under organic farming conditions is very promising to achieve the SDGs.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 476d-476
Author(s):  
Gary R. Cline ◽  
Anthony F. Silvernail

A split-plot factorial experiment examined effects of tillage and winter cover crops on sweet corn in 1997. Main plots received tillage or no tillage. Cover crops consisted of hairy vetch, winter rye, or a mix, and N treatments consisted of plus or minus N fertilization. Following watermelon not receiving inorganic N, vetch, and mix cover cropsproduced total N yields of ≈90 kg/ha that were more than four times greater than those obtained with rye. However, vetch dry weight yields (2.7 mg/ha) were only about 60% of those obtained in previous years due to winter kill. Following rye winter cover crops, addition of ammonium nitrate to corn greatly increased (P < 0.05) corn yields and foliar N concentrations compared to treatments not receiving N. Following vetch, corn yields obtained in tilled treatments without N fertilization equaled those obtained with N fertilization. However, yields obtained from unfertilized no-till treatments were significantly (P < 0.05) lower than yields of N-fertilized treatments. Available soil N was significantly (P < 0.05) greater following vetch compared to rye after corn planting. No significant effects of tillage on sweet corn plant densities or yields were detected. It was concluded that no-tillage sweet corn was successful, and N fixed by vetch was able to sustain sweet corn production in tilled treatments but not in no-till treatments.In previous years normal, higher-yielding vetch cover crops were able to sustain sweet corn in both tilled and no-till treatments.


1985 ◽  
Vol 77 (6) ◽  
pp. 956-959 ◽  
Author(s):  
J. E. Rechcigl ◽  
D. D. Wolf ◽  
R. B. Reneau ◽  
W. Kroontje

jpa ◽  
1988 ◽  
Vol 1 (3) ◽  
pp. 202-206 ◽  
Author(s):  
O. B. Hesterman ◽  
F. J. Pierce ◽  
E. C. Rossman

jpa ◽  
1992 ◽  
Vol 5 (3) ◽  
pp. 378-382 ◽  
Author(s):  
F. W. Chichester ◽  
J. E. Morrison

2018 ◽  
Vol 31 (2) ◽  
pp. 135-143 ◽  
Author(s):  
Joseph F. Brazel ◽  
Christine Gimbar ◽  
Eldar M. Maksymov ◽  
Tammie J. Schaefer

ABSTRACT In this research note, we replicate Brazel, Jackson, Schaefer, and Stewart's (2016) study of how auditors evaluate skeptical behavior. Like the original study, we find that evaluators reward audit staff who exercise appropriate levels of skepticism and identify a misstatement (positive outcome). However, when no misstatement is identified (negative outcome), evaluators penalize staff who exercise appropriate levels of skepticism. One factor causing this outcome effect may be that exercising skepticism typically causes budget overages due to additional testing. Hence, we examine whether formally attributing the budget overage to skeptical judgments and actions in the audit budget file reduces outcome effects. However, while replicating the initial effect across three separate studies, we have been unable to reduce this effect. Thus, it is clear that the outcome effect in this context is very robust. Data Availability: Contact the authors.


2021 ◽  
Vol 212 ◽  
pp. 105042
Author(s):  
Carmelo Maucieri ◽  
Massimo Tolomio ◽  
Marshall D. McDaniel ◽  
Yaojun Zhang ◽  
Javad Robatjazi ◽  
...  
Keyword(s):  

2021 ◽  
Vol 13 (3) ◽  
pp. 1541
Author(s):  
Xiaolin Shen ◽  
Lili Wang ◽  
Qichen Yang ◽  
Weiming Xiu ◽  
Gang Li ◽  
...  

Our study aimed to provide a scientific basis for an appropriate tillage management of wheat-maize rotation system, which is beneficial to the sustainable development of agriculture in the fluvo-aquic soil areas in China. Four tillage treatments were investigated after maize harvest, including rotary tillage with straw returning (RT), deep ploughing with straw returning (DP), subsoiling with straw returning (SS), and no tillage with straw mulching (NT). We evaluated soil organic carbon (SOC), dissolved organic carbon (DOC), permanganate oxidizable carbon (POXC), microbial biomass carbon (MBC), and particulate organic carbon (POC) in bulk soil and soil aggregates with five particle sizes (>5 mm, 5–2 mm, 2–1 mm, 1–0.25 mm, and <0.25 mm) under different tillage managements. Results showed that compared with RT treatment, NT treatment not only increased soil aggregate stability, but also enhanced SOC, DOC, and POC contents, especially those in large size macroaggregates. DP treatment also showed positive effects on soil aggregate stability and labile carbon fractions (DOC and POXC). Consequently, we suggest that no tillage or deep ploughing, rather than rotary tillage, could be better tillage management considering carbon storage. Meanwhile, we implied that mass fractal dimension (Dm) and POXC could be effective indicators of soil quality, as affected by tillage managements.


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