Combined effects of irrigation level and fertilization practice on yield, economic benefit and water-nitrogen use efficiency of drip-irrigated greenhouse tomato

Excessive nitrogen fertilizer application in greenhouses could cause a significant variation in the nitrogen-use efficiency at the regional scale. This study aims to quantify agronomic nitrogen-use efficiency (AEN) and identify its driving factors across Chinese greenhouse tomato cultivation. Three hundred and forty-eight AEN values were obtained from 64 papers, including mineral nitrogen (MN) and mineral combined with organic nitrogen (MON) treatments. The average AEN values for the MN and MON treatments were 56.6 ± 7.0 kg kg−1 and 34.6 ± 3.5 kg kg−1, respectively. The AEN of the MN treatment was higher than that of the MON treatment for cultivation using soil with an organic matter content of less than 10 g kg−1 and the drip fertigation method. The AENs of the MN and MON treatments were divided into two segments according to the nitrogen application rate. The inflection points of the nitrogen application rate were 290 and 1100 kg N ha−1 for the MN and MON treatments, respectively. When the ratio of organic nitrogen to total nitrogen was less than 0.4, it was beneficial for improving the AEN. The soil organic matter content and the nitrogen application rate were the most critical factors determining the AEN. These results suggest that rationally reducing the nitrogen input and partially substituting mineral nitrogen with organic nitrogen can help improve the nitrogen-use efficiency.

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Nitrogen footprint and nitrogen use efficiency of greenhouse tomato production in North China

Journal of Cleaner Production ◽

10.1016/j.jclepro.2018.10.149 ◽

2019 ◽

Vol 208 ◽

pp. 285-296 ◽

Cited By ~ 13

Author(s):

Long Liang ◽

Bradley G. Ridoutt ◽

Rattan Lal ◽

Dapeng Wang ◽

Wenliang Wu ◽

...

Keyword(s):

Nitrogen Use Efficiency ◽

North China ◽

Nitrogen Use ◽

Tomato Production ◽

Greenhouse Tomato ◽

Use Efficiency

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The combined effects of maize straw mulch and no-tillage on grain yield and water and nitrogen use efficiency of dry-land winter wheat (Triticum aestivum L.)

Soil and Tillage Research ◽

10.1016/j.still.2019.104485 ◽

2020 ◽

Vol 197 ◽

pp. 104485 ◽

Cited By ~ 6

Author(s):

Hongkun Yang ◽

Ge Wu ◽

Piao Mo ◽

Songhe Chen ◽

Siyu Wang ◽

...

Keyword(s):

Triticum Aestivum ◽

Grain Yield ◽

Nitrogen Use Efficiency ◽

Triticum Aestivum L ◽

Combined Effects ◽

No Tillage ◽

Nitrogen Use ◽

Dry Land ◽

Maize Straw ◽

Use Efficiency

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Drip irrigation and fertilization improve yield, uptake of nitrogen, and water-nitrogen use efficiency in cucumbers grown in substrate bags

Plant Soil and Environment ◽

10.17221/186/2019-pse ◽

2019 ◽

Vol 65 (No. 6) ◽

pp. 328-335 ◽

Cited By ~ 2

Author(s):

Xiaohui Hu ◽

Feng Qu ◽

Jingjing Jiang ◽

Jiwen Xu ◽

Tao Liu

Keyword(s):

Nitrogen Use Efficiency ◽

Drip Irrigation ◽

Block Design ◽

Multivariate Regression Analysis ◽

Nitrogen Accumulation ◽

Treatment Combination ◽

Nitrogen Use ◽

Irrigation Level ◽

Use Efficiency ◽

Fertilization Level

This study was conducted to identify ideal irrigation and fertigation levels for maximum yields and profitability of cucumber grown in a substrate-bag cultivation system. The experiment was laid out in randomized complete-block design, with combinations of four drip irrigation rates (75, 100, 125, or 150% of crop evapotranspiration (ETc)) and three fertilization (F) levels (60, 100, or 125% of one dose of Yamazaki nutrient solution formula). The ‘irrigation level × fertilization level’ interaction significantly affected cucumber yield and nitrogen accumulation. The treatment combination of 125% ETc and 100% F promoted yield relatively best. Plants were grown in the 125% ETc and 125% F treatment combination accumulated the most nitrogen. The greatest nitrogen use efficiency (NUE) was observed in the 100% ETc plus 60% F treatment combination. Water use efficiency (WUE) decreased with increasing irrigation rate, and considering just one fertilization level. Through the multivariate regression analysis and the spatial analysis methods to evaluate yield, WUE, and NUE, we conclude that the combination of 13.54–23.78 g/plantand 37.71–52.59 L/plant were the best strategy of fertigation and irrigation for the production of drip-irrigated cultivated cucumber grown in substrate bags in spring.

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