Nitrogen use efficiency was increased by manure combined with plastic film mulching

In dry environments, potato (Solanum tuberosum L.) is grown under mulching for water conservation and improving tuber yield and nitrogen use efficiency (NUE). A meta-analysis was conducted to determine how mulching improved tuber yield and NUE in potato and how yield and NUE is influenced by fertilization, tillage practices, and growing environment in China. A search of peer-reviewed publications was performed to collect data on the effects of mulching on yield and NUE in potato grown in China. The data included were from field studies with a mulching and a no mulching treatment and data on tuber yield and NUE. A total of 169 publications (17 in English and 152 in Chinese) containing 1802 observations from 105 sites were compiled into the dataset. Mulching significantly increased both tuber yield and NUE by an average of 24% compared to no mulching, respectively. Plastic film mulching was more effective in improving yield and NUE than straw mulching. The yield and NUE increase were highest under plastic film mulching on ridge-furrow plots and straw mulching on flat plots. Mulching was more effective at improving yield and NUE in the Northwest dryland region at a plant density between 55,000 and 70,000 plants ha−1 and with application of synthetic N and P2O5 at rates of 100−200 kg ha−1, K fertilization at 0−100 kg K2O ha−1, and without organic fertilization. Integrated use of organic fertilizer and mulching was found to reduce synthetic N and P fertilizer input by 50% and K fertilizer input by 100% for production without affecting yield and NUE. These results demonstrate that mulching increases yield and NUE in potato in China, but the benefits occur when the growing region, tillage, and fertilization practices are appropriately considered.

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Effect of plastic film mulching on maize productivity and nitrogen use efficiency under organic farming in South Korea

The Science of The Total Environment ◽

10.1016/j.scitotenv.2021.147503 ◽

2021 ◽

pp. 147503

Author(s):

Jeong Gu Lee ◽

Ho Gyeong Chae ◽

Hyun Young Hwang ◽

Pil Joo Kim ◽

Song Rae Cho

Keyword(s):

South Korea ◽

Organic Farming ◽

Nitrogen Use Efficiency ◽

Plastic Film ◽

Nitrogen Use ◽

Plastic Film Mulching ◽

Maize Productivity ◽

Use Efficiency ◽

Film Mulching

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Effects of Irrigation Techniques on Yield, Quality and Water Use Efficiency of Greenhouse Grown Celery (Apium graveolens L.)

10.21203/rs.3.rs-32623/v1 ◽

2020 ◽

Author(s):

Shenglin Wang ◽

Chen Luo ◽

Yue Xie ◽

Xiaotang Jiang ◽

Yixin Wang ◽

...

Keyword(s):

Water Use Efficiency ◽

Water Use ◽

Sprinkler Irrigation ◽

Furrow Irrigation ◽

Plastic Film ◽

Irrigation Amount ◽

Plastic Film Mulching ◽

Use Efficiency ◽

Yield Quality ◽

Film Mulching

Abstract Background: Traditional irrigation methods in protected vegetable production such as furrow irrigation result in low water use efficiency. New techniques, such as drip irrigation, micro-sprinkling irrigation have been developed for improving water use efficiency. However, these techniques have not been tested in greenhouse celery production. In this study, three different irrigation techniques micro-sprinkler irrigation (MS), furrow irrigation under plastic film mulching (PF) and micro-sprinkler irrigation under the plastic film mulching (MSP) were investigated whether the three techniques can improve the yield, quality and water use efficiency of greenhouse-grown celery, compared to furrow irrigation (FI). Results: The individual plant weight of celery was higher under MS, PF and MSP than under FI in both autumn season crop (AC) and spring season crop (SC), compared to FI. In AC and SC, the economic yield of celery increases under MSP by 54.18% and 49.55%, the economic yield of celery increases under PF by 30.37% and 34.10%. The irrigation amount of MSP was 151.69 and 179.91 m3 667 m-2 in AC and SC, which was 23.13% and 27.27% lower than that of FI. The irrigation amount of PF was 151.69 and 196.78 m3 667 m-2 in AC and SC, which was 23.13% and 20.45% lower than that of FI. PF and MSP reduced the irrigation amount of celery cultivation in greenhouse, and soil evaporation content. Conclusions: In short, MSP and PF promoted the growth and yield of celery in greenhouse with improved quality and water use efficiency.

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