Soil Management, Organic Matter, and Human Nutrition

An comparison of soilmanagement techniques In the different irrigation zones of Lower Anambra Irrigation Project (LAIP) In eastern Nigeria showed that heavy use of machinery led to Increases In bulk density and decreases In field water Infiltration rate. The relative proportion of clay In the irrigated fields Increased as a result of Irrigation, suggesting that mobilized clay from uncemented main and distribution canals Is carried and deposited In the rice fields. Both Irrigation and the use of machinery have had substantial negative effects on soli nutrient levels, and there is a danger of this process continuing. Soli management for sustainable production in the area should centre on applying organic matter in combination with inorganic fertilizers, monitoring the soli properties on yearly basis before the cropping season for fertilizer and lime recommendations, and varying the depth of tillage to Increase or maintain the effective soli depth.

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The effects of soil management practices on soil organic matter changes within a productive vineyard in the Nitra viticulture area (Slovakia)

Agriculture (Pol nohospodárstvo) ◽

10.1515/agri-2016-0001 ◽

2016 ◽

Vol 62 (1) ◽

pp. 1-9

Author(s):

Vladimír Šimanský ◽

Nora Polláková

Keyword(s):

Organic Matter ◽

Soil Organic Matter ◽

Management Practices ◽

Farmyard Manure ◽

Soil Management ◽

Carbon Management ◽

Lability Index ◽

Carbon Management Index ◽

Commercial Vineyard ◽

Fertiliser Application

Abstract Since understanding soil organic matter (SOM) content and quality is very important, in the present study we evaluated parameters of SOM including: carbon lability (LC), lability index (LI), carbon pool index (CPI) and carbon management index (CMI) in the soil as well as in the water-stable aggregates (WSA) under different soil management practices in a commercial vineyard (established on Rendzic Leptosol in the Nitra viticulture area, Slovakia). Soil samples were taken in spring during the years 2008–2015 from the following treatments: G (grass, control), T (tillage and intensive cultivation), T+FYM (tillage + farmyard manure), G+NPK3 (grass + 3rd intensity of fertilisation for vineyards), and G+NPK1 (grass + 1st intensity of fertilisation for vineyards). The highest LI values in soil were found for the G+NPK3 and T+FYM fertilised treatments and the lowest for the unfertilised intensively tilled treatments. The CPI in the soil increased as follows: T < G+NPK3 < T+FYM < G+NPK1. The highest accumulation of carbon as well as decomposable organic matter occurred in G+NPK1 compared to other fertilised treatments, while intensive tillage caused a decrease. On average, the values of LI in WSA increased in the sequence G+NPK1 < T+FYM < G+NPK3 < T. Our results showed that the greatest SOM vulnerability to degradation was observed in the WSA under T treatment, and the greatest values of CPI in WSA were detected as a result of fertiliser application in 3rd intensity for vineyards and farmyard manure application.

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Soil Management in the Breede River Valley Wine Grape Region, South Africa. 4. Organic Matter and Macro-nutrient Content of a Medium-textured Soil

South African Journal of Enology and Viticulture ◽

10.21548/33-1-1312 ◽

2016 ◽

Vol 33 (1) ◽

Cited By ~ 3

Author(s):

J.C. Fourie

Keyword(s):

South Africa ◽

Organic Matter ◽

Soil Management ◽

Nutrient Content ◽

River Valley ◽

Wine Grape

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Bulk Density, Aggregate Stability, and Organic Matter Content as Influenced by Two Wheatland Soil Management Practices

Soil Science Society of America Journal ◽

10.2136/sssaj1970.03615995003400020033x ◽

1970 ◽

Vol 34 (2) ◽

pp. 302-305 ◽

Cited By ~ 3

Author(s):

S. Tanchandrphongs ◽

J. M. Davidson

Keyword(s):

Organic Matter ◽

Bulk Density ◽

Management Practices ◽

Organic Matter Content ◽

Aggregate Stability ◽

Soil Management ◽

Matter Content

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Cropping system effects on soil quality in the Great Plains: Synthesis from a regional project

Renewable Agriculture and Food Systems ◽

10.1079/raf2005125 ◽

2006 ◽

Vol 21 (1) ◽

pp. 49-59 ◽

Cited By ~ 61

Author(s):

B.J. Wienhold ◽

J.L. Pikul ◽

M.A. Liebig ◽

M.M. Mikha ◽

G.E. Varvel ◽

...

Keyword(s):

Organic Matter ◽

Soil Properties ◽

Great Plains ◽

Management Practices ◽

Assessment Tool ◽

Soil Management ◽

Assessment Tools ◽

Soil Functions ◽

Organic C ◽

Environmental Function

AbstractSoils perform a number of essential functions affecting management goals. Soil functions were assessed by measuring physical, chemical, and biological properties in a regional assessment of conventional (CON) and alternative (ALT) management practices at eight sites within the Great Plains. The results, reported in accompanying papers, provide excellent data for assessing how management practices collectively affect agronomic and environmental soil functions that benefit both farmers and society. Our objective was to use the regional data as an input for two new assessment tools to evaluate their potential and sensitivity for detecting differences (aggradation or degradation) in management systems. The soil management assessment framework (SMAF) and the agro-ecosystem performance assessment tool (AEPAT) were used to score individual soil properties at each location relative to expected conditions based on inherent soil-forming factors and to compute index values that provide an overall assessment of the agronomic and environmental impact of the CON and ALT practices. SMAF index values were positively correlated with grain yield (an agronomic function) and total organic matter (an agronomic and environmental function). They were negatively correlated with soil nitrate concentration at harvest (an indicator of environmental function). There was general agreement between the two assessment tools when used to compare management practices. Users can measure a small number of soil properties and use one of these tools to easily assess the effectiveness of soil management practices. A higher score in either tool identifies more environmentally and agronomically sustainable management. Temporal variability in measured indicators makes dynamic assessments of management practices essential. Water-filled pore space, aggregate stability, particulate organic matter, and microbial biomass were sensitive to management and should be included in studies aimed at improving soil management. Reductions in both tillage and fallow combined with crop rotation has resulted in improved soil function (e.g., nutrient cycling, organic C content, and productivity) throughout the Great Plains.

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