Soil Organic Matter and Wheat Productivity in the Semiarid Argentine Pampas

Díaz‐Zorita, Martín; Buschiazzo, Daniel Eduardo; Peinemann, N.

doi:10.2134/agronj1999.00021962009100020016x

Cited by 97 publications

(47 citation statements)

References 9 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our study confirms this suggestion with a mean yield increase for potatoes of 7 %. Crops grown in both very dry or very wet conditions could potentially benefit from organic inputs as SOM increases water holding capacity in dry climates (Díaz-Zorita et al 1999) and prevents soil compaction in wet climates (Soane 1990). In our study, crops grown in wetter climates do benefit more from organic inputs.…”

Section: Discussionmentioning

confidence: 99%

Do organic inputs matter – a meta-analysis of additional yield effects for arable crops in Europe

et al. 2016

View full text Add to dashboard Cite

Background and aims Organic inputs have a positive effect on the soil organic matter balance. They are therefore an important asset for soil fertility and crop growth. This study quantifies the additional yield effect due to organic inputs for arable crops in Europe when macronutrients are not a limiting factor. Methods A meta-analysis was performed using data from 20 long-term experiments in Europe. Maxima of yield response curves to nitrogen were compared, with and without organic inputs, under abundant P and K supply. Results We were surprised to find that, across all experiments, the mean additional yield effect of organic inputs was not significant (+ 1.4 % ± 1.6 (95 % confidence interval)). In specific cases however, especially for root and tuber crops, spring sown cereals, or for very sandy soils or wet climates, organic inputs did increase attainable yields. A significant correlation was found between increase in attainable yields and increase in soil organic matter content. Conclusions Aggregating data from 20 long-term experiments in Europe, this study shows that organic inputs and/ or soil organic matter do not necessarily increase yields, given sufficient nutrients are supplied by mineral fertilisers. Results show the relevance of some environmental factors for additional yield effect of organic inputs, but no simple relation between organic inputs and crop growth.

show abstract

Section: Discussionmentioning

confidence: 99%

Do organic inputs matter – a meta-analysis of additional yield effects for arable crops in Europe

et al. 2016

View full text Add to dashboard Cite

show abstract

“…By pooling the published data, Alvarez et al [28] found that SOC was the variable more correlated with unfertilized wheat yields under a wide range of soils and management conditions in the Humid Pampa of Argentina and ascribed this to its ability to act as source of nutrients; however, other variables including rainfall also correlated positively to yield. In the semiarid Argentine Pampas, data collected from 134 production fields indicated that wheat yields without fertilization were related to both soil water retention and SOC contents in 0-20 cm soil layer in years with low moisture, while nutrient availability was the limiting factor in the absence of water deficit [29].…”

Section: Discussionmentioning

confidence: 99%

Increasing Soil Organic Matter Enhances Inherent Soil Productivity while Offsetting Fertilization Effect under a Rice Cropping System

Zhao

Huang

et al. 2016

Sustainability

View full text Add to dashboard Cite

Understanding the role of soil organic matter (SOM) in soil quality and subsequent crop yield and input requirements is useful for agricultural sustainability. SOM is widely considered to affect a wide range of soil properties, however, great uncertainty still remains in identifying the relationships between SOM and crop yield due to the difficulty in separating the effect of SOM from other yield-limiting factors. Based on 543 on-farm experiments, where paired treatments with and without NPK fertilizer were conducted during 2005-2009, we quantified the inherent soil productivity, fertilization effect, and their contribution to rice yield and further evaluated their relationships with SOM contents under a rice cropping system in the Sichuan Basin of China. The inherent soil productivity assessed by rice grain yield under no fertilization (Y-CK) was 5.8 t/ha, on average, and contributed 70% to the 8.3 t/ha of rice yield under NPK fertilization (Y-NPK) while the other 30% was from the fertilization effect (FE). No significant correlation between SOM content and Y-NPK was observed, however, SOM content positively related to Y-CK and its contribution to Y-NPK but negatively to FE and its contribution to Y-NPK, indicating an increased soil contribution but a decreased fertilizer contribution to rice yield with increasing SOM. There were significantly positive relationships between SOM and soil available N, P, and K, indicating the potential contribution of SOM to inherent soil productivity by supplying nutrients from mineralization. As a result, approaches for SOM accumulation are practical to improve the inherent soil productivity and thereafter maintain a high crop productivity with less dependence on chemical fertilizers, while fertilization recommendations need to be adjusted with the temporal and spatial SOM variation.

show abstract

“…Organic compost increases soil carbon sequestration and reduces GHGs emission (Forte et al 2017). It enriches SOM, soil fertility, soil microbial diversity, soil moisture, cation exchange capacity, soil aeration and reduces soil erosion and crop pests and diseases (Tester 1990;Diaz-Zorita et al 1999;Peacock et al 2001;Mäder et al 2002;Magdoff and Weil 2004;Sun et al 2004;Fließbach et al 2007;Ge et al 2008;Zhang et al 2012;Liu et al 2013). It is widely recognized that animal manure and crop straw enhance the SOM and crop yield (Yang et al 2004).…”

Section: Traditional Organic Compostingmentioning

confidence: 99%

Traditional agriculture: a climate-smart approach for sustainable food production

Singh

2017

Energ. Ecol. Environ.

202

118

View full text Add to dashboard Cite

Sustainable food production is one of the major challenges of the twenty-first century in the era of global environmental problems such as climate change, increasing population and natural resource degradation including soil degradation and biodiversity loss. Climate change is among the greatest threats to agricultural systems. Green Revolution though multiplied agricultural production several folds but at the huge environmental cost including climate change. It jeopardized the ecological integrity of agroecosystems by intensive use of fossil fuels, natural resources, agrochemicals and machinery. Moreover, it threatened the age-old traditional agricultural practices. Agriculture is one of the largest sectors that sustain livelihood to maximum number of people and contribute to climate change. Therefore, a climate-smart approach to sustainable food production is the need of hour. Traditional agriculture is getting increased attention worldwide in context of sustainable food production in changing climate. The present article advocates traditional agriculture as a climate-smart approach for the sustainable food production and also deliberates the correlation between climate change and agriculture.

show abstract

Soil Organic Matter and Wheat Productivity in the Semiarid Argentine Pampas

Cited by 97 publications

References 9 publications

Do organic inputs matter – a meta-analysis of additional yield effects for arable crops in Europe

Do organic inputs matter – a meta-analysis of additional yield effects for arable crops in Europe

Increasing Soil Organic Matter Enhances Inherent Soil Productivity while Offsetting Fertilization Effect under a Rice Cropping System

Traditional agriculture: a climate-smart approach for sustainable food production

Contact Info

Product

Resources

About