干旱区生态环境知识资源中心(Arid): Effects of combined nitrogen and potassium application on cherry tomato production efficiency under deficit irrigation

Arid

DOI	10.1016/j.scienta.2024.112958
	Effects of combined nitrogen and potassium application on cherry tomato production efficiency under deficit irrigation
	He, Daiwei; Li, Rui; Feng, Ziqi; Li, Dayong; Yang, Taiguo; Chen, Jingru; Qiu, Lijuan; Zhang, Zhi
通讯作者	Qiu, LJ ; Zhang, Z
来源期刊	SCIENTIA HORTICULTURAE
ISSN	0304-4238
EISSN	1879-1018
出版年	2024
卷号	328
英文摘要	Appropriate deficit irrigation and nutrient supply are key to efficient agricultural water use in arid and semi-arid regions. An experiment was conducted to evaluate the effects of the combined nitrogen and potassium application on the growth of cherry tomatoes under deficit irrigation across 2021 spring(S) and fall(F). A quadratic orthogonal rotation design with three factors and three levels was adopted, for the following treatments: irrigation levels of W1 (50 % evaporation(Ep)), W2 (75 % Ep), and W3 (100 % Ep); the nitrogen application levels of N1 (S:183.8 kg/ha, F:131.3 kg/ha), N2 (S:367.5 kg/ha, F:262.5 kg/ha), and N3 (S:551.3 kg/ha, F:393.8 kg/ha); and the potassium application levels of K1 (S:98.6 kg/ha, F:70.5 kg/ha), K2 (S:197.3 kg/ha, F:140.9 kg/ha), and K3 (S:295.9 kg/ha, F:211.3 kg/ha). The results revealed that increasing the nitrogen and potassium application significantly promoted the element accumulation in fruits under W1 application, with nitrogen content increasing by 31.6 % and 24.7 %, and potassium content increasing by 25.4 % and 53.7 % in the two study seasons, respectively. When W2 was applied, increased potassium application promoted a 36.2 % and 38.3 % increase in total soluble sugar in the two study seasons, respectively. Nitrate nitrogen residue in the soil showed a downward trend with the deepening of the soil layer. The increased application of nitrogen and potassium enhanced irrigation water use efficiency, but reduced the partial factor productivity of fertilizer. Correlation and path analyses revealed that the application of nitrogen and potassium significantly affected potassium content in fruits, yield, and nitrate nitrogen residue in the 0-15 cm soil layer. The nitrogen and potassium contents in fruits significantly affected yield, with maximum path coefficients of 0.768 and 0.352, respectively. A comprehensive evaluation system consisting of five indicators was constructed, and yield obtained the maximum combined weight of 0.390 and 0.330 in the two seasons, respectively. W2N3K1 exhibited the best balancing in yield, quality, and efficiency based on the TOPSIS model. The proposed strategy offers a theoretical basis for the water-use-efficient and sustainable production of cherry tomatoes in arid and semi-arid regions.
英文关键词	Nitrogen Potassium Deficit irrigation Cherry tomato Yield Path analysis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001177251100001
WOS关键词	NUTRIENT-UPTAKE ; YIELD ; QUALITY ; FERTILIZER ; WATER ; GREENHOUSE ; MODEL
WOS类目	Horticulture
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405547
推荐引用方式 GB/T 7714	He, Daiwei,Li, Rui,Feng, Ziqi,et al. Effects of combined nitrogen and potassium application on cherry tomato production efficiency under deficit irrigation[J],2024,328.
APA	He, Daiwei.,Li, Rui.,Feng, Ziqi.,Li, Dayong.,Yang, Taiguo.,...&Zhang, Zhi.(2024).Effects of combined nitrogen and potassium application on cherry tomato production efficiency under deficit irrigation.SCIENTIA HORTICULTURAE,328.
MLA	He, Daiwei,et al."Effects of combined nitrogen and potassium application on cherry tomato production efficiency under deficit irrigation".SCIENTIA HORTICULTURAE 328(2024).