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- W4220791193 endingPage "107925" @default.
- W4220791193 startingPage "107925" @default.
- W4220791193 abstract "The impacts of crop diversity on ecosystem functioning can vary across environmental conditions and land use histories. We conducted a two-year experiment to assess the effects of two diversification practices—vetch-oat cover cropping and cucumber-snow pea intercropping—on nitrogen (N) cycling and productivity across a farm management gradient. The field experiment spanned 14 farms in southern Brazil with different long-term management histories, ranging from conventional tobacco to agroecological mixed crop-livestock systems. Along this gradient, farm soils with longer histories of agroecological management had higher soil organic carbon, potentially mineralizable carbon, and extractable phosphorus, captured by a principal component reflecting “biological soil fertility.” We found that benefits of diversification practices for soil N cycling and productivity were ecologically relevant across the farm gradient within the two-year span of our experiment, with the greatest overall performance on agroecological farms. First, vetch-oat cover crops doubled mean N inputs to soil compared to fallows across all farms. Following cover crop incorporation, N mineralization was twice as high on agroecological farms as on transitioning or conventional farms. At vegetable planting, use of cover crop mixtures explained 67% of the variation in soil N availability, after accounting for the effects of background fertility. Finally, vegetable intercrops had higher productivity than monocrops across farms and years (mean LER=1.19), with stronger overyielding in the second year (mean LER=1.27). On a subset of farms, low soil pH constrained the performance of both diversification practices, reducing vetch N2 fixation and vegetable intercrop yield (Land Equivalent Ratio, LER). While prior research has emphasized facilitation between diversified crops in lower fertility soils, our results suggest that diversification's advantages for nutrient cycling and productivity are robust to varied soil conditions and accrue over the course of transitions to agroecological management." @default.
- W4220791193 created "2022-04-03" @default.
- W4220791193 creator A5026530138 @default.
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- W4220791193 date "2022-07-01" @default.
- W4220791193 modified "2023-09-30" @default.
- W4220791193 title "Assessing cover crop and intercrop performance along a farm management gradient" @default.
- W4220791193 cites W1563455964 @default.
- W4220791193 cites W1594032928 @default.
- W4220791193 cites W1776001246 @default.
- W4220791193 cites W1971625934 @default.
- W4220791193 cites W1976703626 @default.
- W4220791193 cites W1984412649 @default.
- W4220791193 cites W1987972312 @default.
- W4220791193 cites W1993236211 @default.
- W4220791193 cites W1993324569 @default.
- W4220791193 cites W2006854375 @default.
- W4220791193 cites W2008200025 @default.
- W4220791193 cites W2009723642 @default.
- W4220791193 cites W2010410187 @default.
- W4220791193 cites W2018002681 @default.
- W4220791193 cites W2019990444 @default.
- W4220791193 cites W2029913338 @default.
- W4220791193 cites W2031809412 @default.
- W4220791193 cites W2036110753 @default.
- W4220791193 cites W2039053601 @default.
- W4220791193 cites W2043266119 @default.
- W4220791193 cites W2053997328 @default.
- W4220791193 cites W2054058647 @default.
- W4220791193 cites W2054677308 @default.
- W4220791193 cites W2062182298 @default.
- W4220791193 cites W2064242091 @default.
- W4220791193 cites W2077483806 @default.
- W4220791193 cites W2078546465 @default.
- W4220791193 cites W2082259828 @default.
- W4220791193 cites W2091937409 @default.
- W4220791193 cites W2095016596 @default.
- W4220791193 cites W2101971030 @default.
- W4220791193 cites W2112125262 @default.
- W4220791193 cites W2114458021 @default.
- W4220791193 cites W2119659142 @default.
- W4220791193 cites W2119755528 @default.
- W4220791193 cites W2120700991 @default.
- W4220791193 cites W2121521064 @default.
- W4220791193 cites W2122175811 @default.
- W4220791193 cites W2126902408 @default.
- W4220791193 cites W2137870988 @default.
- W4220791193 cites W2152228646 @default.
- W4220791193 cites W2160632293 @default.
- W4220791193 cites W2162801530 @default.
- W4220791193 cites W2164603413 @default.
- W4220791193 cites W2165872496 @default.
- W4220791193 cites W2166701358 @default.
- W4220791193 cites W2169286869 @default.
- W4220791193 cites W2169383877 @default.
- W4220791193 cites W2263060951 @default.
- W4220791193 cites W2316007641 @default.
- W4220791193 cites W2325844894 @default.
- W4220791193 cites W2502288230 @default.
- W4220791193 cites W2516199552 @default.
- W4220791193 cites W2593970810 @default.
- W4220791193 cites W2596532888 @default.
- W4220791193 cites W2621239120 @default.
- W4220791193 cites W2625300945 @default.
- W4220791193 cites W2757739019 @default.
- W4220791193 cites W2767523680 @default.
- W4220791193 cites W2767666746 @default.
- W4220791193 cites W2800495074 @default.
- W4220791193 cites W2925995098 @default.
- W4220791193 cites W2964362873 @default.
- W4220791193 cites W2975637527 @default.
- W4220791193 cites W2981117522 @default.
- W4220791193 cites W3014132541 @default.
- W4220791193 cites W3016256744 @default.
- W4220791193 cites W3023242048 @default.
- W4220791193 cites W3024766004 @default.
- W4220791193 cites W3032980049 @default.
- W4220791193 cites W3082413591 @default.
- W4220791193 cites W3093689436 @default.
- W4220791193 cites W3095634839 @default.
- W4220791193 cites W3099969201 @default.
- W4220791193 cites W3111350618 @default.
- W4220791193 cites W3118695347 @default.
- W4220791193 cites W3132730779 @default.
- W4220791193 cites W3133611552 @default.
- W4220791193 cites W3152859618 @default.
- W4220791193 cites W3165535467 @default.
- W4220791193 cites W3165846476 @default.
- W4220791193 cites W3172461883 @default.
- W4220791193 cites W3213468448 @default.
- W4220791193 cites W4247734158 @default.
- W4220791193 doi "https://doi.org/10.1016/j.agee.2022.107925" @default.
- W4220791193 hasPublicationYear "2022" @default.