Synergy between compost and cover crops in a Mediterranean row crop system leads to increased subsoil carbon storage
نویسندگان
چکیده
Abstract. Subsoil carbon (C) stocks are a prime target for efforts to increase soil C storage climate change mitigation. However, subsoil dynamics not well understood, especially in soils under long-term intensive agricultural management. We compared and organic matter (SOM) composition tomato–corn rotations after 25 years of differing nutrient management the California Central Valley: CONV (mineral fertilizer), CONV+WCC fertilizer cover crops), ORG (composted poultry manure crops). The crop mix used these systems is oat (Avena sativa L.), faba bean (Vicia hairy vetch villosa Roth). Our results showed ?19 Mg ha?1 (SOC) down 1 m systems, no significant SOC increases or an increased abundance carboxyl-rich (60–100 cm) horizons systems. show potential with compost amendments tilled identify pathways increasing transport layers.
منابع مشابه
Topography Mediates the Influence of Cover Crops on Soil Nitrate Levels in Row Crop Agricultural Systems.
Supplying adequate amounts of soil N for plant growth during the growing season and across large agricultural fields is a challenge for conservational agricultural systems with cover crops. Knowledge about cover crop effects on N comes mostly from small, flat research plots and performance of cover crops across topographically diverse agricultural land is poorly understood. Our objective was to...
متن کاملCover crop root contributions to soil carbon in a no-till corn bioenergy cropping system
Crop residues are potential biofuel feedstocks, but residue removal may reduce soil carbon (C). The inclusion of a cover crop in a corn bioenergy system could provide additional biomass, mitigating the negative effects of residue removal by adding to stable soil C pools. In a no-till continuous corn bioenergy system in the northern US Corn Belt, we used CO2 pulse labeling to trace plant C from ...
متن کاملstability and attraction domains of traffic equilibria in day-to-day dynamical system formulation
در این پژوهش مسئله واگذاری ترافیک را از دید سیستم های دینامیکی فرمول بندی می کنیم.فرض کرده ایم که همه فاکتورهای وابسته در طول زمان ثابت باشند و تعادل کاربر را از طریق فرایند منظم روزبه روز پیگیری کنیم.دینامیک ترافیک توسط یک نگاشت بازگشتی نشان داده می شود که تکامل سیستم در طول زمان را نشان می دهد.پایداری تعادل و دامنه جذب را توسط مطالعه ویژگی های توپولوژیکی تکامل سیستم تجزیه و تحلیل می کنیم.پاید...
Response of wheat crop during transition to organic system under Mediterranean conditions
Organic agriculture is an ecological production management system aimed at sustainableproduction of safe food, environmental protection and maintenance of soil health. The objectiveof this study was to evaluate, in a period of organic transition, the effects of different organicfertilizers on wheat yield, grain quality and soil characteristics. The research was performedin an experimental farm ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Soil
سال: 2022
ISSN: ['2199-398X', '2199-3971']
DOI: https://doi.org/10.5194/soil-8-59-2022