<i>Effects of different plastic-film mulching practices on maize growth and yield under drip irrigation in sub-humid region of Northeast China</i>

2019 ◽  
Author(s):  
Xiaodong Bo ◽  
Jiusheng Li ◽  
Yanfeng Li ◽  
Jun Wang
Keyword(s):  
Drip Irrigation ◽  
Northeast China ◽  
Growth And Yield ◽  
Plastic Film ◽  
Plastic Film Mulching ◽  
Maize Growth ◽  
Humid Region ◽  
Film Mulching

scholarly journals The Effects of Plastic Film Mulching on Maize Growth and Water Use in Dry and Rainy Years in Northeast China

PLoS ONE ◽  
2015 ◽  
Vol 10 (5) ◽  
pp. e0125781 ◽  
Author(s):  
Jie Xu ◽  
Congfeng Li ◽  
Huitao Liu ◽  
Peilu Zhou ◽  
Zhiqiang Tao ◽  
...  
Keyword(s):  
Water Use ◽  
Northeast China ◽  
Plastic Film ◽  
Plastic Film Mulching ◽  
Maize Growth ◽  
Film Mulching

Effects of plastic film mulching with drip irrigation on N2O and CH4 emissions from cotton fields in arid land

2013 ◽  
Vol 152 (4) ◽  
pp. 534-542 ◽  
Author(s):  
Z. LI ◽  
R. ZHANG ◽  
X. WANG ◽  
F. CHEN ◽  
D. LAI ◽  
...  
Keyword(s):  
Global Warming ◽  
Greenhouse Gas ◽  
Drip Irrigation ◽  
Plastic Film ◽  
Gaseous Oxygen ◽  
Traditional System ◽  
Plastic Film Mulching ◽  
Gas Fluxes ◽  
Film Mulching ◽  
Greenhouse Gas Fluxes

SUMMARYTo evaluate the effects of a modern cultivation system of plastic film mulching with drip irrigation (MD) on soil greenhouse gas fluxes, methane (CH4) and nitrous oxide (N2O) fluxes were quantified and contrasted in an MD system and a traditional system of mulch-free flood-irrigated (MFF) cotton (Gossypium hirsutum L.) in fields of northwest China. The results showed that soil N2O flux and the absorption rate of CH4 were lower in the MD than the MFF sites. A possible reason for the higher CH4 emissions at MD sites was that the relatively low gaseous oxygen (O2) availability and high ammonium (NH4+) content in the MD soil increased CH4 generation by methanogens and decreased CH4 oxidation by methanotrophs. The lower N2O in the MD sites may be due to an increase of soil denitrification by Thiobacillus denitrificans that reduced some nitrous compounds further into nitrogen gas (N2). Taking into account the global warming potentials of CH4 and N2O in a 100-year time horizon, during the entire growth period, the contribution of CH4 to the greenhouse effect was significantly lower than N2O in these two treatments. Considering these two greenhouse gas fluxes together, a transition from non-mulching cultivation to mulching cultivation could reduce atmospheric emissions by c. 20 g CO2 e m2/season. Based on these findings and previous studies, it can be concluded that mulched-drip irrigation cultivation is a good way to decrease the emission of greenhouse gases and reduce the global warming impact of arid farmlands.

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