Water and nitrogen management scheme of melon based on yield−quality−efficiency matching perspective under CO2 enrichment

Cai, Zelin; Bai, Jiaming; Li, Rui; He, Dongjian; Du, Ruiqin; Li, Dayong; Hong, Tingting; Zhang, Zhi

doi:10.1016/j.agwat.2023.108379

Cited by 6 publications

(1 citation statement)

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“…The use of water-fertilizer coupling technology practice in production can achieve the best combination of water and fertilizer (Koc and Nzokou, 2023), which is a powerful measure to promote high-quality sustainable development of farmland (Zhang et al, 2017a). A scientific and reasonable water and fertilizer management system can not only improve crop water consumption and water and fertilizer use efficiency (Cai et al, 2023;Wu et al, 2023), but also holds significant academic significance and practical value for improving crop yield (Dou et al, 2022;Huang et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Comprehensive evaluation of the water-fertilizer coupling effects on pumpkin under different irrigation volumes

Zhong,

Zhang,

et al. 2024

Front. Plant Sci.

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Compared to conventional irrigation and fertilization, the Water-fertilizer coupling can significantly enhance the efficiency of water and fertilizer utilization, thereby promoting crop growth and increasing yield. Targeting the challenges of poor crop growth, low yield, and inefficient water and fertilizer utilization in the arid region of northwest China under conventional irrigation and fertilization practices. Therefore, a two-year on-farm experiment in 2022 and 2023 was conducted to study the effects of water-fertilizer coupling regulation on pumpkin growth, yield, water consumption (ET), and water and fertilizer use efficiency. Simultaneously the comprehensive evaluation of multiple objectives was carried out using principal component analysis (PCA) methods, so as to propose an suitable water-fertilizer coupling regulation scheme for the region. The experiment was set up as a two-factor trial using water-fertilizer integration technology under three irrigation volume (W1 = 37.5 mm, W2 = 45.5 mm, W3 = 52.5mm) and three organic fertilizer application amounts (F1 = 3900-300 kg ha-1, F2 = 4800-450 kg·ha-1, F3 = 5700-600 kg·ha-1), with the traditional irrigation and fertilization scheme from local farmers as control treatments (CK). The results indicated that irrigation volume and organic fertilizer application significantly affected pumpkin growth, yield, and water and fertilizer use efficiency (P<0.05). Pumpkin yield increased with increasing irrigation volume. Increasing organic fertilizer levels within a certain range benefited pumpkin plant growth, dry matter accumulation, and yield, however, excessive application beyond a certain level had inhibited effects on those. The increased fertilizer application under the same irrigation volume enhanced the efficiency of water and fertilizer utilization. However excessive irrigation only resulted in inefficient water consumption, reducing the water and fertilizer use efficiency. The Comprehensive evaluation by PCA revealed that the F2W3 treatment outperformed all the others, effectively addressing the triple objectives of increasing production, improving efficiency, and promoting green production. Therefore, F2W3 (Irrigation volume: 52.5 mm; Fertilizer application amounts: 4800-450 kg/ha-1) as a water and fertilizer management scheme for efficient pumpkin production in the arid region of northwest China.

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