Corn and Soybean Grain Yield, Phosphorus Removal, and Soil-Test Responses to Long-Term Phosphorus Fertilization Strategies

Mallarino, Antonio P.; Prater, Jacob R.

doi:10.31274/icm-180809-904

Cited by 6 publications

(6 citation statements)

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“…These phosphorus balances were corroborated by long-term soil test phosphorus data at several research farm sites in Iowa (Mallarino et al 2011). Research investigating phosphorus applications to corn and soybean cropping systems showed that in plots receiving no phosphorus fertilizer, soil tests levels decline approximately 1 ppm (Bray-1) per year (Mallarino and Prater, 2007). Conversely, plots receiving P fertilization experienced increased soil P tests levels over time (Mallarino and Prater, 2007).…”

Section: Phosphorus Input-output Balancementioning

confidence: 77%

“…Research investigating phosphorus applications to corn and soybean cropping systems showed that in plots receiving no phosphorus fertilizer, soil tests levels decline approximately 1 ppm (Bray-1) per year (Mallarino and Prater, 2007). Conversely, plots receiving P fertilization experienced increased soil P tests levels over time (Mallarino and Prater, 2007). Mallarino (2008) for "Very Low " and "High" and grain removal-based for "Optimum" † from USDA NASS (2012): Iowa average (2009-2011) 173 bu/ac corn and 50.8 bu/ac soybean; assumed corn and soybean yields reported at 15.5% and 13% moisture and corrected to dry weight here; corn: 0.31 lb P 2 O 5 /bu and soybeans: 0.76 lb P 2 O 5 /bu (Mallarino et al, 2011)…”

Section: Phosphorus Input-output Balancementioning

confidence: 99%

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Nitrogen, carbon, and phosphorus balances in Iowa cropping systems: Sustaining the soil resource

Castellano

Helmers

Sawyer

et al. 2012

Proceedings of the Integrated Crop Management Conference

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The Corn Belt' s exceptional productivity depends on high soil organic carbon and nutrient stocks (that is, the amount of carbon and nutrients stored in the soil). However, there is growing concern among scientists and farmers that soil carbon, nitrogen, and phosphorus stocks in corn-based cropping systems may be declining as a result of outputs that exceed inputs. The lack of certainty about the status of soil carbon and nutrient stocks is largely due to the extreme difficulty associated with measurement of inputs, outputs, and stocks of soil organic carbon and nutrients.

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Section: Phosphorus Input-output Balancementioning

confidence: 77%

Section: Phosphorus Input-output Balancementioning

confidence: 99%

Nitrogen, carbon, and phosphorus balances in Iowa cropping systems: Sustaining the soil resource

Castellano

Helmers

Sawyer

et al. 2012

Proceedings of the Integrated Crop Management Conference

View full text Add to dashboard Cite

show abstract

“…It has been demonstrated that supplementary fertilization can lead to improved performance of these crops [21]. In the present study inoculation of soybean gave consistently lower grain yields compared with noninoculated soybean.…”

Section: Discussionmentioning

confidence: 64%

Soil Amendments and Rotation Effects on Soybean and Maize Growths and Soil Chemical Changes in Northern Ghana

Kanton¹,

Buah²,

Larbi³

et al. 2017

International Journal of Agronomy

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A four-year field trial was conducted at Bonia in the Upper East Region of Ghana to evaluate soybean-maize rotation amendment systems. The treatments included soybean without amendment, inoculated soybean, inoculated soybean with fertisol, inoculated soybean with phosphorus and potassium (P, K), inoculated soybean with P, K and fertisol, inoculated soybean with nitrogen, phosphorus, and potassium (N, P, K), and continuous maize. Treatments were arranged in a randomized complete block design with four replications. Inoculation negatively affected yields by 2% and 14% in 2013 and 2015, respectively. Soil amendments with P, K or N, P, K increased yields within 45-51%, fertisol increased by 95%, and integration of P, K and fertisol recorded 76% increment of inoculated soybean. Yields of maize increased by 1%, 20%, 25%, 43%, 44%, and 46% under inoculated soybean, inoculated soybean with N, P, K, inoculated soybean with P, K, inoculated soybean with fertisol, soybean without amendment, and inoculated soybean with P, K and fertisol, respectively. Maize after inoculated soybean with fertisol and maize after inoculated soybean with P, K and fertisol consistently scored higher benefit-cost ratio across the two years of experimentation. Thus, the two systems are conceivable for recommendation to the farmers in northern Ghana.

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“…Research has shown that an Optimum soil-test P level can be approximately maintained by applying a P rate equivalent to crop P removal as long as assumed yield levels and nutrient concentrations of harvested products are appropriate (Mallarino and Prater, 2007). However, research also has shown (Fig.…”

Section: Considering Uncertainty and Crop/fertilizer Price Ratiosmentioning

confidence: 99%

Corn and Soybean Grain Yield, Phosphorus Removal, and Soil-Test Responses to Long-Term Phosphorus Fertilization Strategies

Cited by 6 publications

References 0 publications

Nitrogen, carbon, and phosphorus balances in Iowa cropping systems: Sustaining the soil resource

Nitrogen, carbon, and phosphorus balances in Iowa cropping systems: Sustaining the soil resource

Soil Amendments and Rotation Effects on Soybean and Maize Growths and Soil Chemical Changes in Northern Ghana

Soil-test interpretations and phosphorus management approaches for profitable crop production

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