Jaziri,
S., Mohamed, H.C., Rezgui, M., Labidi, S., Souissi, A., Rezgui, M., Barbouchi, M., Annabi, M. & Bahri, H. 2022. Agronomy. 12 (4) Article number 953.
https://doi.org10.3390/agronomy12040953
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Rinaldi,
M., Almeida, A.S., Alvaro, F.J., Annabi, M., Annicchiarico, P., Cantero, M.C., Cruz, M.G., D'Alessandro, G. Gitsopoulos, T., Marandola, D., Marguerite, M., Lamouchi, S., Latati, M., Lopez, F.A., Moussadek, R. & Pecetti, L. 2022. Agronomy. 12 (5). Article number
1112. https://doi.org/10.3390/agronomy12051112
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Ghosh,
S., Das, T.K., Shivay, Y.S., Bandyopadhyay, K.K., Bhatia, A. & Yeasin, Md. 2022. Journal of Crop and Weed. 18 (1) 111-119.
https://doi.org/10.22271/09746315.2022.v18.i1.1540
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Nayak,
H.S., Parihar, C.M., Mandal, B.N., Patra, K., Jat, S.L., Singh, R., Singh, V.K., Jat, M.L., Garnaik, S., Nayak, J. & Abdallah, A.M. 2022. European Journal of Agronomy. 133. Article number 126417
https://doi.org/10.1016/j.eja.2021.126417
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This
study looks at various nitrogen placement methods in CA systems with residue retention in order to increase N-use efficiency. The study assessed the impact of three N placement methods, i.e., NPM1: both the N splits were surface band placed, NPM2: the first
split of N was sub-surface point placed and second N split (late vegetative stage) was surface band applied, and NPM3: both the N splits were sub-surface point placed, under 4-long-term tillage and residue management (+R) options, i.e., permanent raised bed
(PB+R), zero-till flat (ZT+R) conventional till flat (CT+R) and first time zero till flat sowing of the crop on last 10-year fallow land (FZT+R), in an on-going long-term study (since 2008) in maize for three consecutive years (2018–2020). Sub-surface point
placement of both the N splits (NPM3) increased maize grain yield by 4.7, 7.0 and 6.0% (3-years mean basis) compared to NPM2, under CA-based PB, ZT, and FZT plots, respectively.
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Lastariningsih,
E., Sjah, T., Tanaya, I.G.L.P., Prasedya, E.S., Sunarwidhi, A.L., Nufus, N.H. & Ariyana, M.D. 2021. IOP Conference Series: Earth and Environmental Science. 913 (1) Article number 012015.
https://doi.org/10.1088/1755-1315/913/1/012015
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This
is a study from Indonesia analyzes the economic and environmental impacts of conservation agriculture in maize. There are two comparisons; a) application of manure, mulch of previous crop residue and legumes as cover crop, and b) non-CA, chemical fertilizer,
herbicide, no mulch and plants only maize. Observations by researchers, farmers, and extension workers were taken. Results show that CA with application of manure and mulch of previous crop residues, economically was able to reduce the purchase of herbicides
and chemical fertilizer, save labor costs and time in plant maintenance. CA also reduced air pollution, use less groundwater, and increase SOM. Farmer income also increased.
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Montoyo,
M., Juhanson, J., Hallin, S., Garcia-Gutierrez, S. Garcia-Marco, S., Vallejo, A., Recio, J. & Guardia, G. 2022. Soil Biology and Biochemistry. 170. Article number 108687.
https://doi.org/10.1016/j.soilbio.2022.108687
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This
study looked at various conservation management practices -- agroforestry, cover cropping, no-till, reduced tillage, and residue return on surface runoff and erosion. Most of the data were collected from China, USA, Europe, and Africa. They compared production
with and without these CMP's. They explored interactions between CMP practice type, soil texture, surface runoff, and soil erosion. They then related changes in surface runoff and soil erosion to 13 other soil health and agronomic indicators, including soil
organic carbon, soil aggregation, infiltration, porosity, subsurface leaching, and cash crop yield. They found that across all CMP's, surface runoff and erosion had respective mean decreases of 67% and 80% compared with controls. Cover cropping provided the
largest decreases in erosion and surface runoff, thus emphasizing the importance of maintaining continuous vegetative cover on soils.
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This
study from Eastern India looks at precision nutrient management under the CA-based maize-wheat system. There are 7 treatment combinations involving tillage (i) CT and Permanent beds (PB); and (ii) nutrient management rates, application methods; farmer fertilizer
(FFP), State recommendations (SR), and precision nutrient management using a Nutrient Expert tool (NE), and Greenseeker (GS) using broadcasting (B) or drilling (D). The results showed that NE, NE+GS, and SR-based nutrient management tactics with drilling improved
crop yields, nutrient-use efficiency (NUE), and economic profitability relative to NE, SR, and FFP broadcasting methods. Maize-wheat system productivity and net returns under NE+GS-drilling on PB were significantly higher by 31.2%, 49.7% compared to FFP-broadcasting
method, respectively. They conclude that PB-based maize-wheat system together with precision nutrient management approaches (NE+GS+drilling) can significantly increase crop yields, NUE, and profitability while reducing the emission of greenhouse gases
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