The Production, Consumption, and Environmental Impacts of Rice Hybridization in the United States

Nalley, Lawton Lanier; Tack, Jesse; Durand, Alvaro; Tsiboe, Francis; Shew, Aaron M.; Barkley, Andrew

doi:10.2134/agronj2016.05.0281

Cited by 21 publications

(16 citation statements)

References 15 publications

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“…The Hybrid rice is expected to result in 15–20% higher yields than the high yielding varieties [ 54 – 57 ]. The attainable yield of Hybrid rice is about 10 t/ha [ 54 , 55 ]. However, in 2015–16, the probability of achieving the yield of 8.0 t/ha was only 20%.…”

Section: Resultsmentioning

confidence: 99%

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

et al. 2021

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The North-West (NW) region of Bangladesh is pivotal for the country’s agricultural development, mainly in producing irrigated Boro rice. However, increasing cost of irrigation water, fertilizers, labour and other inputs, and the spatio-temporal variation in actual yield, market price and profitability of rice, have added uncertainty to the sustainability of Boro rice cultivation. In this study, we evaluated the productivity, profitability, and prospect of Boro rice production using comprehensive field data collected directly from 420 farmers’ fields over two consecutive seasons (2015–16 and 2016–17), across seven geographically distributed locations in the NW region. We also analyzed the risk and return trade of popular Boro rice cultivars using Monte-Carlo simulation. The results show that there were significant (p≤0.05) variations in rice yield between sites, irrigation pump-types, and rice varieties, with Hybrid rice and BRRI dhan29 producing highest yields (6.0–7.5 t/ha). Due to different pricing systems, the cost of irrigation water varied from site to site and from year to year, but always comprised the highest input cost (20–25% of total production). The total paid-out cost, gross benefit, and gross income of rice significantly (p≤0.05) differed between sites, type of irrigation pumps, rice varieties, transplanting dates, and two cropping years. The variations in observed yield and profitability reveal considerable scope to improve rice production systems. Market variation in the price of rice affected overall profitability significantly. Probability and risk analysis results show that Minikit and BRRI dhan29 are the most stable varieties for yield and profitability. Hybrid rice, which has the maximum attainable yield among the cultivated rice varieties, also has the risk of negative net income. Based on the analysis, we discussed ways to improve yield and profitability and the prospect of Boro rice cultivation in the region. The study provides valuable information for policy-makers to sustain irrigated rice cultivation in both the NW region and nationally.

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Section: Resultsmentioning

confidence: 99%

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

et al. 2021

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“…This low P fertilizer efficiency is common in Brazilian Cerrado savanna, whose soils have high acidity, high aluminum saturation and low bases saturation. The United Nations estimates that global population will increase 33% by 2050, from 7.2 billion today to 9.6 billion people (Nalley et al, 2017). Therefore, improving the fertilizer use efficiency is important to increase food supply, economy and environment safety, justifying the need for further studies in the area of agricultural systems.…”

Section: Introductionmentioning

confidence: 99%

Enhanced efficiency of phosphorus fertilizer in soybean and maize

Pelá

Bento²,

Crispim

et al. 2019

Aust J Crop Sci

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Soybeans and maize are the most cultivated crops in tropical soils and require large amounts of phosphate fertilizers. The use of enhanced-efficiency fertilizers is a promising technology to minimize losses of P by fixation in highly weathered tropical soils. The objectives of this study were to evaluate morphological characteristics, soybean P and boron foliar content, yield and agronomic efficiency of P fertilizer in response to P rates and sources in maize and soybean crops. Two P fertilization experiments with the sources Mono-ammonium Phosphate (MAP) and Policote coated MAP were carried out, one in maize (0, 20, 40, 80, 120 and 160 kg P2O5 ha-1) and another in soybean crop (0, 20, 40, 80 and 120 kg P2O5 ha-1). The morphological characteristics, soybean P and boron foliar content, yield and agronomic P fertilizer efficiency were evaluated. The results showed that maize and soybean morphological characteristics, as well as soybean foliar P and boron contents were not influenced by fertilization. P fertilization increased soybean yield. Policote coated MAP was more efficient than MAP (conventional fertilizer) to produce higher maize and soybean yields and higher agronomic efficiency of P use. For higher productivity, we recommend the dose of 102.9 kg P2O5 ha-1 of Policote coated MAP for soybean and 97.6 kg P2O5 ha-1 for maize.

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“…An LCA was conducted to quantitatively compare the cradle-to-farm gate environmental impact of BPB following an approach similar to previous work [5,35,44]. An evaluation was conducted for counterfactual scenarios that consider the elimination of BPB under current climatic conditions and under a warming scenario with a 1°C increase in daily temperature.…”

Section: Methodsmentioning

confidence: 99%

Warming increases Bacterial Panicle Blight (Burkholderia glumae) occurrences and impacts on USA rice production

et al. 2019

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Bacterial Panicle Blight (BPB), caused by Burkholderia glumae , is a bacterial disease in rice ( Oryza sativa ) that reduces rice yield and quality for producers and consequently creates higher market prices for consumers. BPB is caused by the simultaneous occurrence of high daily minimum temperatures (~22°C) and relative humidity (~77%), which may increase under the current scenario of global warming. This study hypothesized that the economic damage from warming may cause an increase in economic losses, though at a decreasing rate per degree. Thus, this study estimates the yield losses associated with BPB occurrences at the county level in the Mid-South United States (US) for annual rice production in 2003–2013 and under +1–3°C warming scenarios using daily weather information with appropriate thresholds. From the estimated losses, the total production potential of a BPB-resistant rice was quantified using a spatial equilibrium trade model to further estimate market welfare changes with the counterfactual scenario that all US county-level rice production were BPB resistant. Results from the study indicate that the alleviation of BPB would represent a $69 million USD increase in consumer surplus in the US and a concomitant increase in rice production that would feed an additional 1.46 million people annually assuming a global average consumption of 54 Kg per person. Under the 1°C warming scenario, BPB occurrences and production losses would cause price increases for rice and subsequently result in a $112 million USD annual decrease in consumer surplus in the US and a loss of production equivalent to feeding 2.17 million people. Under a 3°C warming scenario, production losses due to BPB cause an annual reduction of $204 million USD in consumer surplus in the US, and a loss in production sufficient to feed 3.98 million people a year. As global warming intensifies, BPB could become a more common and formidable rice disease to combat, and breeding for BPB resistance would be the primary line-of-defense as currently no effective chemical options are available. The results of this study inform agriculturalists, policymakers, and economists about the value of BPB-resistance in the international rice market and also help support efforts to focus future breeding toward climate change impact resilience.

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The Production, Consumption, and Environmental Impacts of Rice Hybridization in the United States

Cited by 21 publications

References 15 publications

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

Yield, profitability, and prospects of irrigated Boro rice cultivation in the North-West region of Bangladesh

Enhanced efficiency of phosphorus fertilizer in soybean and maize

Warming increases Bacterial Panicle Blight (Burkholderia glumae) occurrences and impacts on USA rice production

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