scholarly journals Demonstration gardens with EDTA-washed soil. Part III: Plant growth, soil physical properties and production of safe vegetables

2021 ◽  
pp. 148521
Author(s):  
Simon Gluhar ◽  
Anela Kaurin ◽  
Domink Vodnik ◽  
Damijana Kastelec ◽  
Vesna Zupanc ◽  
...  
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Soil Physical Properties

Effects of spent mushroom substrate on soil physical conditions and plant growth in an intensive horticultural system

Soil Research ◽  
1998 ◽  
Vol 36 (6) ◽  
pp. 899 ◽  
Author(s):  
D. P. C. Stewart ◽  
K. C. Cameron ◽  
I. S. Cornforth ◽  
J. R. Sedcole
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Water Content ◽  
Bulk Density ◽  
Principal Components ◽  
Crop Yields ◽  
Infiltration Rate ◽  
Soil Physical Properties ◽  
Spent Mushroom Substrate ◽  
Surface Crust

A 2-year field trial determined the influence of applying spent mushroom substrate (SMS) on soil physical properties and the growth of 4 consecutive vegetable crops (sweetcorn, cabbage, potato, cabbage). Treatments comprised 0, 20, 40, and 80 t/ha of moist SMS, both with and without inorganic fertiliser, applied to each crop, giving a range of SMS rates up to 320 t/ha. SMS improved the environment for plant root growth by decreasing soil bulk density (by 0· 05-0·25 g/cm 3 at 100 mm depth), increasing aggregate stability (by 13-16%), reducing clod and surface crust formation (by 16-31 and 18-94%, respectively), increasing the infiltration rate (by 130-207 mm/h), increasing the water content of the soil (by 0-7% w/w), and reducing diurnal temperature changes. Some of these changes were not evident until repeated applications of 80 t/ha SMS had been made. Soil physical properties were related to crop yield, and soil physical properties’ principal components were related to crop principal components using regression analysis (r2 of 0·20-0·60 and 0·16-0·54, respectively). The soil physical properties that had the most influence on plant growth were specific to each crop and included bulk density, water content, surface crust cover, infiltration rate, and aggregate size distribution. Soil physical properties had a large influence on the potato yield irrespective of fertiliser use and on both cabbage crop yields when fertiliser was not used, but not on the sweetcorn yield (the first crop to be grown). The effect of changing soil physical properties on plant growth was most apparent when fertiliser was not used. This was because the improved physical properties increased plant yield (at least in part) because of increased plant nutrient uptake.

scholarly journals The Spatial Variability of Soil Physical Properties of Different Sized-gap in a Subtropical Forest, China

2020 ◽  
pp. 41-55
Author(s):  
Supaporn Buajan ◽  
Jinfu Liu ◽  
Zhongsheng He
Keyword(s):  
Plant Growth ◽  
Spatial Variability ◽  
Physical Properties ◽  
Total Porosity ◽  
Soil Bulk Density ◽  
Soil Physical Properties ◽  
Gap Size ◽  
Natural Reserve ◽  
Spatial Environment ◽  
Reserve Forest

Gap areas create heterogeneity in the spatial environment, which is important to plant regeneration and diversity. Soil physical properties (SPP) are factors that affect plant growth. This study aims to assess the spatial variability of SPP in different gap sizes and to determine the effect of gap size on SPP. We used geostatistical analysis to illustrate the spatial patterns of SPP variability within 9 gaps, classified into three sizes (small, medium, and large) and under the canopy at the Castanopsis kawakamii natural reserve forest, the soil samples were collected entire gap area at 20 cm depth with the grid system (resolution: 3 m × 3 m). The following SPPs were determined using soil cores: soil bulk density (SBD), soil water mass content (SWMC), soil volumetric moisture content (SVMC), maximum moisture capacity (MMC), capillary water capacity (CWC), minimum water-holding capacity (MWHC), soil capillary porosity (SCP), and soil total porosity (STP). We found that every SPP, except SCP and STP, significantly differed with gap size. Gap sizes generally improved the SPPs, especially in the small and large gaps, indicating that the soil there was more suitable for plant growth than the soil under the canopy. The highest spatial variability of SPPs was observed in the large gaps. Gap size affected SPP and its spatial variability. The results from this study will be useful for work on forest gap regeneration and conservation, especially around the study site.

Organic Wastes for Improving Soil Physical Properties and Enhancing Plant Growth in Container Substrates

2001 ◽  
Vol 3 (1) ◽  
pp. 97-112 ◽  
Author(s):  
Nsalambi V. Nkongolo ◽  
Jean Caron ◽  
Fabienne Gauthier ◽  
Mitate Yamada
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Soil Physical Properties ◽  
Organic Wastes

scholarly journals The Influence of Concrete Grinding Residue on Soil Physical Properties and Plant Growth

2019 ◽  
Vol 48 (6) ◽  
pp. 1842-1848 ◽  
Author(s):  
Chenyi Luo ◽  
Zhuangji Wang ◽  
Farnaz Kordbacheh ◽  
Yang Zhang ◽  
Bo Yang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Soil Physical Properties
Sign in / Sign up

Export Citation Format

Share Document