When can I transplant rockwool seedlings?
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Open access•Journal Article | When seedlings are to serve as rootstock, they should be at least one year old, on which grafting can be taken up. |
8 Citations | The seedlings thus grow strong and can achieve the level of commodity seedlings after 20–30 days. |
45 Citations | The method can also be used to screen early-generation populations because assayed seedlings are still viable and can be transplanted for growing until harvest. |
| The production of quality seedlings is favorable up to the 45th day of submission to shading, after which seedlings should be transplanted. | |
21 Citations | It was concluded that planting can be done at 5.0 leaves/transplant and 0.5g/transplant and that in winter and spring grown periods it may be delayed until 6.0 leaves/transplant and 0.7g/transplant. |
| Additionally, when a seedling is taken from the bag for transplant, there is the risk of root damage, which compromises the plant's development. | |
43 Citations | The data indicates that seedlings of poor vigour can be discarded at the seedling stage prior to transplantation in the field. |
16 Citations | Short-term storage of grafted seedlings under low temperature may extend the production window of grafted seedlings, reduce the labor input and increase production of grafted seedlings with a small propagation capacity. |
74 Citations | Through an understanding of the physiological basis underlying transplant shock under a given set of conditions, it may be possible to eliminate, or at least minimise, the effects of transplant shock on containerised tree seedlings soon after planting. |
| However, the presence of seed predators can work only when some seedlings can survive more than 1 year. |
Related Questions
Rockwool analysis post-cycle?8 answersRockwool, a widely used substrate in agriculture and construction, undergoes significant changes in its properties post-use, affecting its potential for reuse or recycling. Post-cycle analysis of rockwool reveals alterations in its water-air properties, chemical characteristics, and physical structure, alongside its environmental impact and potential for repurposing.
After a single production cycle in a greenhouse, rockwool exhibits a considerable increase in organic matter due to root remnants, affecting its water retention and air space properties. The used rockwool showed a decrease in container water capacity and an increase in field water capacity at various water potential values, indicating changes favorable for soil reclamation purposes. When blended with peat for geranium production, used rockwool contributed to increased air space and decreased volumetric water content, with a slight effect on volumetric easily-available water. These modifications suggest that post-cycle rockwool can alter the physical properties of growing mediums, potentially benefiting plant growth under certain conditions.
The environmental impact of rockwool production and disposal is also noteworthy. Alternative manufacturing processes using torrefied biomass and sodium silicate have been proposed to reduce gas emissions and improve sustainability, although they may increase impacts in other environmental categories. Post-production rockwool, along with lignite dust, has been explored for land reclamation, showing potential to improve physical soil properties.
Life cycle assessment (LCA) studies highlight the significant environmental impacts of rockwool production, particularly when used in composite materials like aluminum sandwich facade panels. However, innovative recycling methods, such as geopolymerization, offer pathways to repurpose mineral wool waste into structural materials, addressing the challenge of its difficult-to-process composition.
Research on rockwool's interaction with plant pathogens and its capacity for water content measurement further underscores the complexity of its post-use characteristics. Additionally, its influence on pH in cultivation mediums and hygrothermal properties with different additives provides insights into its multifaceted nature post-cycle. Collectively, these studies illuminate the potential and challenges of reusing and recycling rockwool, emphasizing the need for sustainable management practices.
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