Nutrient Uptake by High-Yielding Cotton Crop in Brazil

Vieira, José Luís Vilela; Nardi, Kaue Tonelli; Silva, Gabriel Rodrigues Anastácio; Moreira, Lílian Angélica; Zavaschi, Eduardo; Moura, Thiago Augusto de; Otto, Rafael

doi:10.1590/18069657rbcs20170033

Cited by 11 publications

(5 citation statements)

References 15 publications

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“…This was reflected in the high nutrient accumulation in leaves and stems. Specifically, a massive push of N, P, and K into the leaves and stems was observed from 30 to 60 DAP in 2018 and 2019 (Figures 3 and 4), similar to reports from Rochester, Constable, Oosterhuis, and Errington (2012); Vieira et al (2018);and Schwab, Mullins, and Burmester (2000), who observed greater nutrient accumulation in the leaves and stems during vegetative stage. As the plants entered the reproductive stage, there was a decrease in nutrients in the vegetative parts and a net nutrient movement to the immature bolls at 90 DAP and into the seeds by 120 DAP in both years (Figures 3 and 4).…”

Section: Nutrient Accumulation and Partitioningsupporting

confidence: 86%

Dry matter and nutrient partitioning changes for the past 30 years of cotton production

2020

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Modern cotton (Gossypium hirsutum L.) cultivars are more productive and have unique growth and fruiting characteristics due to optimization of genetics and management practices in the past 30 yr. The most recent work evaluating nutrient uptake and partitioning by cotton was conducted in the early 1990s, necessitating a re-evaluation of nutrient accumulation and requirements in modern high productivity cultivars. Modern cultivar (FiberMax [FM] 958 and Deltapine [DP] 1646) resource allocation, including dry matter production, yields, and accumulation and partitioning of N, P, K, Ca, Mg, and S to different organs, was compared with that of a 1990s cultivar (Paymaster [PM] HS26) in 2018 and 2019. The modern cultivars tested in this study partitioned a greater percentage of dry matter, N, P, K, and S into the fruit than the older cultivar, highlighting the importance of partitioning for increased production potential of these cultivars from the 1990s to the 2010s. Greater efficiencies in partitioning and remobilization of N, P, K, and S resulted in 66, 88, 64, and 30% increase in the amount of lint yield produced for every unit of uptake, respectively, under favorable growing conditions. These findings suggest that existing fertility paradigm in cotton may underestimate the accumulation expectations during the middle and latter part of the growing season. These results can be a basis for optimizing nutrient application to address partitioning changes. Adjusting nutrient recommendations to the shift in cultivar growth characteristics may improve both yield and application efficiency of fertilizers. 1 INTRODUCTION Nutrient uptake and partitioning among plant tissues of cotton (Gossypium hirsutum L.) grown under both dryland and irrigated conditions have been documented in

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Section: Nutrient Accumulation and Partitioningsupporting

confidence: 86%

Dry matter and nutrient partitioning changes for the past 30 years of cotton production

2020

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“…2). A dry spell was observed when cotton grow rate was supposed to experience a sharp increase, and so K uptake 19 . Considering that soil K transport to the root surface occurs by diffusion and mass flow 2,5 , it depends on soil water.…”

Section: Discussionmentioning

confidence: 99%

Potassium application to the cover crop prior to cotton planting as a fertilization strategy in sandy soils

Echer

Peres

Rosolem

2020

Sci Rep

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Urochloa grasses are used as cover crops in tropical cropping systems under no-till to improve nutrient cycling. We hypothesized that potassium (K) applied to ruzigrass (Urochloa ruziziensis) grown before cotton in a sandy soil could be timely cycled and ensure nutrition, yield and quality of cotton cultivars with no need to split K application. Field experiments were performed with different K managements, applied to ruzigrass, to cotton grown after grass and without grass, or split as it is done conventionally. No yield differences were observed on K fertilized treatments. At 0 K, cotton yields were low, but they increased by 16% when ruzigrass was grown before, and short fiber content was lower when there was more K available. Ruzigrass grown before cotton increased micronaire as much as the application of 116 kg ha−1 of K without the grass. Fiber maturity was higher when K was applied to the grass or split in the grass and sidedressed in cotton. Growing ruzigrass before cotton allows for early K fertilization, i.e., application of all the fertilizer to de grass, since the nutrient is recycled, and cotton K nutrition is not harmed. Eventually K rates could be reduced as a result of higher efficiency of the systems.

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“…In many previous studies, the individual effects of N, P, and K application on cotton have been widely researched. There are also many studies on the interactive effects of N and P, and N and K. However, few studies have been done to investigate the combined effects of integrated application of N, P, and K at various ratios [13,14]. In order to maximize the use efficiency of chemical fertilizer and further promote cotton yield and fiber quality, a superior strategy is needed to be developed based on the better understanding how the combination of N, P, and K fertilizer works together on.…”

Section: Introductionmentioning

confidence: 99%

Response of Boll Development to Macronutrients Application in Different Cotton Genotypes

et al. 2019

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Combined application of nitrogen (N), phosphorus (P), and potassium (K) is a valuable practice to improve the growth and physiological activities of cotton, especially during a boll setting. The main purpose of this research was to investigate the effects of the different combined ratios of nitrogen (N), phosphorus (P), and K (potassium) on morpho-physiological activities of Bacillus thuringiensis (Bt) cotton genotypes Siza 1 and Sikang 1 during the cotton boll development stage. A two-year (2016–2017) field experiment was performed in which the total amount of combined N, P, and K were applied at different levels, B1 = 150 N, 0 P2O5, and 0 K2O kg ha−1 (control), B2 = 150 N, 45 P2O5, and 90 K2O kg ha−1, B3 = 150 N, 90 P2O5, and 135 K2O kg ha−1, and B4 = 150 N, 135 P2O5, and 180 K2O kg ha−1. Results revealed that combined application of N, P, and K significantly increased boll length by 5.8% and 2.3%, fresh boll weight by 12.2% and 16.4%, dry lint weight by 15.2% and 1.7%, number of seeds boll−1 by 15.2% and 2.5% as well as dry boll shell weight by 11.0% and 4.9% as compared with the treatment without P and K (1:0:0) across two growing seasons. Furthermore, superoxide dismutase activity was improved by 2.3% and 15.6% and soluble protein by 5.1% and 14.1% as compared with the control, respectively. Our study indicated that combined application of N, P, and K at appropriate ratios enhanced morpho-physiological activities (boll length, boll width, boll weight, protein content, sugar content, and superoxide dismutase) of cotton during boll development and generally the ratio of 150:135:180 considerably performed best amongst all treatments during two growing seasons in this study.

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Nutrient Uptake by High-Yielding Cotton Crop in Brazil

Cited by 11 publications

References 15 publications

Dry matter and nutrient partitioning changes for the past 30 years of cotton production

Dry matter and nutrient partitioning changes for the past 30 years of cotton production

Potassium application to the cover crop prior to cotton planting as a fertilization strategy in sandy soils

Response of Boll Development to Macronutrients Application in Different Cotton Genotypes

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