Effect of soil structure disturbance on erosion and phosphorus losses from Finnish clay soil

2009 ◽  
Vol 103 (1) ◽  
pp. 84-91 ◽  
Author(s):  
Paula Muukkonen ◽  
Helinä Hartikainen ◽  
Laura Alakukku
Keyword(s):  
Soil Structure ◽  
Clay Soil ◽  
Phosphorus Losses

Effects of autumn tillage of clay soil on mineral N content, spring cereal yield and soil structure over time

2012 ◽  
Vol 37 (1) ◽  
pp. 96-104 ◽  
Author(s):  
Åsa Myrbeck ◽  
Maria Stenberg ◽  
Johan Arvidsson ◽  
Tomas Rydberg
Keyword(s):  
Soil Structure ◽  
Clay Soil ◽  
Mineral N ◽  
N Content ◽  
Over Time

Effects of Freeze-Thaw and Soil Structure on Nitrous Oxide Produced in a Clay Soil

2000 ◽  
Vol 64 (5) ◽  
pp. 1638-1643 ◽  
Author(s):  
Eric van Bochove ◽  
Danielle Prévost ◽  
France Pelletier
Keyword(s):  
Nitrous Oxide ◽  
Soil Structure ◽  
Clay Soil ◽  
Freeze Thaw

Boardmill sludge reduces phosphorus losses from conservation-tilled clay soil

2009 ◽  
Vol 104 (2) ◽  
pp. 285-291 ◽  
Author(s):  
Paula Muukkonen ◽  
Helinä Hartikainen ◽  
Laura Alakukku
Keyword(s):  
Clay Soil ◽  
Phosphorus Losses

Phosphorus losses to surface waters following organic manure applications to a drained clay soil

2002 ◽  
Vol 57 (2) ◽  
pp. 155-173 ◽  
Author(s):  
R.A Hodgkinson ◽  
B.J Chambers ◽  
P.J.A Withers ◽  
R Cross
Keyword(s):  
Surface Waters ◽  
Clay Soil ◽  
Organic Manure ◽  
Phosphorus Losses

Role of Soil Structure and Matric Suction in Collapse of a Compacted Clay Soil

2003 ◽  
Vol 26 (1) ◽  
pp. 9058 ◽  
Author(s):  
L David Suits ◽  
TC Sheahan ◽  
SM Rao ◽  
K Revanasiddappa
Keyword(s):  
Soil Structure ◽  
Clay Soil ◽  
Matric Suction ◽  
Compacted Clay

Impact of maize cob and wood-derived biochar on soybean plant growth and soil aggregate structure in dry land

2020 ◽  
Author(s):  
Hua Ma ◽  
Qirui Li ◽  
Sonoko D. Bellingrath-Kimura
Keyword(s):  
Plant Growth ◽  
Grain Yield ◽  
Soil Structure ◽  
Clay Soil ◽  
Soil Aggregate ◽  
Mean Value ◽  
Soybean Plant ◽  
Aggregate Structure ◽  
Dry Land ◽  
The Mean

<p>Soil structure plays important roles in land degradation, soil fertility, and agricultural productivity and thus has great ecological importance. Soil aggregation is a crucial soil function for maintaining soil porosity and enhancing the stability of soil structure to prevent soil erosion. Biochar was reported to be a binding agent for organic matter in aggregate formation and thus alleviate aggregates degradation. Therefore, this study attempts to a) investigate the impact of the biochar on soybean plant growth, plant nutrients content and soil chemical properties; b) analyze the effect of maize cob biochar (CB) and wood biochar (WB) on soil aggregate structure in vulnerable dry land area.</p><p>Field trial was performed on two sandy soil fields (at MLZ and BDG village) and one loamy clay soil field (at RQ village) which located in Ningxia, China. Two treatments (20 t ha<sup>-1</sup> of CB and WB application) and control were repeated 7 times. In this study, we analyzed biomass, grain yield, and nutrients content of soybean plant while soil nutrients were observed as well. Nine soil aggregate size classes (ASCs) were obtained (>10, 10-7, 7-5, 5-3, 3-2, 2-1, 1-0.5, 0.5-0.25 and <0.25 mm) through dry sieving to analyze soil structure. In addition, soil dry mean weight diameter (dMWD), dry geometric mean diameter (dGMD), and structure coefficient (Ks) were measured to estimate the aggregate stability, erodible fraction, and agronomically valuable fraction. After that, redundancy analysis and ridge regression analysis were applied for further data processing.</p><p>Our results indicated <strong>a</strong><strong>)</strong><strong> </strong><strong>bio</strong><strong>m</strong><strong>ass</strong><strong> </strong><strong>and</strong><strong> gr</strong><strong>ain</strong><strong> </strong><strong>yie</strong><strong>ld</strong><strong>:</strong> both CB and WB significantly increased shoot biomass in loamy clay soil by 48.7% and 45.0%, respectively. In the two sandy soils, biochar indicated no significant enhancement on the plant growth and grain yield. Even though, the mean value of grain yield increased by 29.7% and 35.1% with the CB and WB application in the MLZ field, respectively. CB application also increased the mean value of grain yield by 34.2% in the BDG field. Although the data shows insignificant difference with high standard errors due to field heterogeneity, the mean values can still give insights into agricultural field practices; <strong>b</strong><strong>)</strong><strong> </strong><strong>soil</strong><strong> ag</strong><strong>gre</strong><strong>gat</strong><strong>e</strong><strong> </strong><strong>stru</strong><strong>c</strong><strong>ture</strong><strong>:</strong> soil type exerted stronger influence on soil aggregation and plant growth rather than biochar. The sandy field in MLZ showed high soil loss potential by wind erosion referring to a low value of dGMD, and the loamy clay field showed the highest dMWD, dGMD and Ks values for an ideal aggregate structure for crop growth. Findings indicate that biochar had no significant influence on aggregate structure in both sandy and loamy clay soils; <strong>c</strong><strong>) </strong><strong>soil</strong><strong> nut</strong><strong>rients</strong><strong>:</strong> CB can significantly increase soil total carbon content in RQ and BDG fields. Soil potassium content can be enhanced by CB application in loamy clay soil.</p>

Sign in / Sign up

Export Citation Format

Share Document