4 results match your criteria winter-green gramineae

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Effects of green manure planted in winter and straw returning on soil aggregates and organic matter functional groups in double cropping rice area.

Ying Yong Sheng Tai Xue Bao 2021 Feb;32(2):564-570

Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences/Key Laboratory of Agricultural Environment, Ministry of Agriculture, Beijing 100081, China.

To explore the mechanism of exogenous organic materials enhancing soil organic carbon and soil fertility, based on a long-term experiment located in Hengyang Red Soil Experimental Station, we examined the effects of winter green manure and straw returning patterns (CK, winter fallow; MV, winter Chinese milk vetch; S, early-season rice straw total returning; DS, early-season and late-season rice straw total returning; SMV, winter Chinese milk vetch + early-season rice straw total returning; DSMV, winter Chinese milk vetch + early-season and late-season rice straw total returning) on soil aggregates and organic functional groups. The results showed that the proportion of super aggregates (>2 mm) and macroaggregates (0.25-2 mm) in double cropping rice soil was the highest with a ratio of about 72. Read More

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February 2021

[Effects of nitrogen application and winter green manure on soil active organic carbon and the soil carbon pool management index].

Ying Yong Sheng Tai Xue Bao 2014 Oct;25(10):2907-13

Based on a cropping system of "winter green manure-double rice", the 4 x 4 two-factor test was used to study the effects of different nitrogen (N) application levels and winter green manure application on soil active organic carbon (AOC) and the C pool management index. The aim was to explore the ecological effects of winter green manure on soil improvement and determine the appropriate application levels of N fertilizer and winter green manure for improved rice yield. Results were as follows: 1) Compared with the control, the SOC and AOC contents increased by 22. Read More

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October 2014

Mustard catch crop enhances denitrification in shallow groundwater beneath a spring barley field.

Chemosphere 2014 May 26;103:234-9. Epub 2013 Dec 26.

Teagasc Environment Research Center, Johnstown Castle, Wexford, Ireland.

Over-winter green cover crops have been reported to increase dissolved organic carbon (DOC) concentrations in groundwater, which can be used as an energy source for denitrifiers. This study investigates the impact of a mustard catch crop on in situ denitrification and nitrous oxide (N2O) emissions from an aquifer overlain by arable land. Denitrification rates and N2O-N/(N2O-N+N2-N) mole fractions were measured in situ with a push-pull method in shallow groundwater under a spring barley system in experimental plots with and without a mustard cover crop. Read More

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Food competition between a large ruminant and a small hindgut fermentor: the case of the roe deer and mountain hare.

Oecologia 2001 Aug 1;128(4):499-508. Epub 2001 Aug 1.

Norwegian Institute for Nature Research, Tungasletta 2, 7005, Trondheim, Norway.

In this study, we demonstrate that the mountain hare and roe deer compete with each other. This was determined using "natural experiments" of populations found in sympatry and allopatry on the islands along the west coast of Norway. We demonstrate that both species occupy the same habitats, share the same food resources and that food availability is limited. Read More

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