Nitrogen dynamic in wheat (Triticum aestivum L.) agroecosystem as influenced by intra- and interspecific competition

Asadi, Sara; Aynehband, A; Rahnama, Afrasyab

doi:10.1590/s0100-83582020380100087

Cited by 2 publications

(1 citation statement)

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“…This result could be due to higher and stronger seedlings at the time of transplanting, with advantages such as rapid plant growth and a larger capacity for photosynthesis, leading to an increase in exponential growth when compared with direct seeding (Vandamme et al., 2016). In addition, compared with direct seeding, transplanting increased yield by closing the canopy faster, resulting in fewer weeds and reduced competition between plants and weeds (Asadi et al., 2020; Hoffmann, 2019; Ramesh et al., 2017). Also, TSC and WSC increased significantly with transplanting compared with direct seeding in the first site (experiment 1) and second site (experiment 2) (Figure 2).…”

Section: Discussionmentioning

confidence: 99%

Improving sugar beet yield, quality, and water use efficiency by nursery and transplanting practice under semi‐arid conditions

et al. 2023

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Transplanting is a useful technique to produce sugar beet (Beta vulgaris L.) in arid and semi‐arid regions that face water scarcity and salinity. The major challenge in transplanting is to improve the economic benefits that smallholder farmers have in the self‐production of transplants. The objective of this study was to evaluate the yield, quality, and water use efficiency (WUE) of sugar beet in response to transplanting and different options in transplant production process. Two field experiments were conducted at two sites. The first experiment investigated the effects of seedling age at transplanting, volume of the substrate, and transplanting date. The second experiment investigated the effects of substrate media and transplant production conditions on sugar beet yield and quality. In both experiments, transplanting was compared to the direct seeding on the conventional planting date at both sites. The highest white sugar content (12.1% and 13.5%) and white sugar yield (10.2 and 12.1 t ha−1) were obtained from plants transplanted in mid‐May at sites 1 and 2, respectively. Also, root yield, total sugar content, and WUE were higher in transplanting than direct seeding. The 40‐day‐old transplants produced in 22 mL cell volume when transferred to the field in mid‐May had higher WUE than the direct seeding. The transplants produced outside the greenhouse (uncontrolled conditions) had nearly the same yields as those produced inside a greenhouse under controlled conditions. We suggest that using readily available substrates and not requiring greenhouse conditions for transplant production is a cost‐effective way for smallholder farmers to produce their own seedlings.

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