Reproductive Performance and Fiber  Quality Responses of Cotton to Potassium Nutrition

Lokhande, Suresh; Reddy, K. R.

doi:10.4236/ajps.2015.67099

Cited by 16 publications

(15 citation statements)

References 37 publications

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“…Our measured primary fiber quality factors of length and micronaire in response to treatment row and plant spacing are listed in Table 4 by year with the level of significance, but no corroborating model fiber quality results were possible because GOSSYM does not determine those properties [35] [36]. Fiber length exceeded the grade minimum 20.6 mm, averaging 21.5 mm across the Length, micronaire, and other factors are combined to determine the lint price premium that we present in Table 5 These data show that the ultra-narrow and narrow row spacing tended to have more heavily discounted price premiums than with conventional row spacing.…”

Section: Lint Yield and Fiber Qualitymentioning

confidence: 99%

Planting Geometry Effects on the Growth and Yield of Dryland Cotton

Baumhardt¹,

Schwartz²,

Marek³

et al. 2018

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The declining Ogallala Aquifer beneath the Southern High Plains may necessitate dryland crop production and cotton (Gossypium hirsutum L.) is a well-adapted and potentially profitable alternative crop. The limited growing season duration of the Texas Panhandle and southwestern Kansas, however, imposes significant production risk due to incomplete boll maturation. Emphasizing earlier boll production that is usually confined to sites on lower fruiting branches may reduce risk, but offsetting high planting densities are needed to maintain desirable lint yield. Our objectives were to quantify planting: 1) row width and 2) in-row spacing effects on growth, yield, and fiber quality of dryland cotton. Field tests of row widths from 0.25 to 0.76 m and plant densities with in-row spacing ranging from 0.075 to 0.15 m were conducted from 1999 to 2005 on a nearly level Pullman clay loam (fine, mixed, superactive, thermic Torrertic Paleustoll) managed in a wheat (Triticum aestivum L.), cotton, fallow (W-Ctn-F) rotation. To expand the basis of comparison, cotton growth and yields were simulated using GOSSYM and long-term weather records from Bushland, TX, as input for all combinations of 0.38 or 0.76 m row widths and plant spacing of 0.075, 0.10 and 0.15 m. Experimental and computer simulated plant height and harvested boll number increased significantly with increased row spacing and, occasionally, in-row plant spacing. Modeled lint yield for 0.38 m rows decreased by approximately 50% compared with the 582 kg·ha −1 yield for conventional row spacing, which was practically duplicated by field observations in 2001 and 2004. Measured fiber quality occasionally improved with conventional row spacing over ultra-narrow rows, but was unaffected by plant spacing. Because narrow rows and frequent plant spacing did not improve lint yield or fiber quality of dryland cotton, we do not recommend this strategy to overcome a thermally limited growing season.

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Section: Lint Yield and Fiber Qualitymentioning

confidence: 99%

Planting Geometry Effects on the Growth and Yield of Dryland Cotton

Baumhardt¹,

Schwartz²,

Marek³

et al. 2018

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“…K fertilizer affected the photo-assimilate export from leaves to sink parts and regulated the sugar signaling in reproductive parts [24]. Potassium deficiency led to a reduction of main stem length, nodes and bolls, and also leaf photosynthesis and stomatal conductance [18,23,33,34], resulting in less carbohydrate production, a small sink and an in-balanced source-sink ratio. A previous study also revealed that a linear effect between K amounts and the growth efficiency of the reproductive part [35].…”

Section: Discussionmentioning

confidence: 99%

“…Many studies focused on the effect of K on cotton fiber quality traits but the results had many differences. Some studies showed that the K amount significantly affected the fiber length [21,22], strength, micronaire, uniformity, and elongation of the cotton [23]. However, some studies indicated that fiber properties were not significantly affected by the K amount [16,24,25].…”

Section: Introductionmentioning

confidence: 99%

Equal K Amounts to N Achieved Optimal Biomass and Better Fiber Quality of Late Sown Cotton in Yangtze River Valley

Ali

Hafeez

et al. 2020

Agronomy

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Potassium (K) fertilizer plays a crucial role in the formation of the biological and economic yield of cotton (Gossypium hirsutum L.). Here we investigated the effects of the amount of K on biomass accumulation and cotton fiber quality with lowered N amounts (210 kg ha−1) under late sowing, high density and fertilization once at 2 weeks after squaring. A 2-year field experiment was performed with three K fertilizer amounts (168 kg ha−1 (K1), 210 kg ha−1 (K2), and 252 kg ha−1 (K3)) using a randomized complete block design in 2016 and 2017. The results showed correspondingly, K3 accumulated cotton plant biomass of 7913.0 kg ha−1, next to K2 (7384.9 kg ha−1) but followed by K1 (6985.1 kg ha−1) averaged across two growing seasons. Higher K amounts (K2, K3) increased biomass primarily due to a higher accumulation rate (32.68%–74.02% higher than K1) during the fast accumulation period (FAP). Cotton fiber length, micronaire, and fiber strength in K2 were as well as K3 and significantly better than K1. These results suggest that K fertilizer of 210 kg ha−1 should be optimal to obtain a promising benefit both in cotton biomass and fiber quality and profit for the new cotton planting model in the Yangtze River Valley, China and similar climate regions.

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“…The way cotton plant allocate photosynthates between vegetative and fruit growth in response to K nutrition critically affect the cotton yield potential. Significant reductions in total dry matter production with nitrogen deficiency were reported by Lokhande & Reddy (2015) and Fritschi et al (2003). In this concern, another study revealed a significant effects of nitrogen sources and rates on dry matter in different crops and environments (EL Sabagh et al, 2016).…”

Section: Effect Of Fertilization Of Total Dry Mattermentioning

confidence: 99%

Optimizing yield and fiber quality of cotton under mediterranean environment: managing nitrogen and potassium nutrition

Görmüş¹,

A²,

Islam³

2016

JEBAS

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Effective management strategies for nitrogen (N) and potassium (K) fertilizer are important to ensure optimum yield and fiber quality of cotton production. The aim of this research was to study the influence of nitrogen and potassium application on yield and fiber quality of cotton. Study was conducted in a randomized blocks in a factorial design with three replicates. The nitrogen treatments (0, 60, 120, 180, 240 kg ha -1 ) and five K2O rates (0, 50, 100, 150, and 200 kg ha -1) are used in this study. Among the various tested combinations, the best combinations are 180 kg N ha -1 along with 150 kg K ha -1 and it produced the greatest seed cotton yieldand gin turnout. After 120 days of plantation 72% reduction in the dry weight was reported in the nitrogen deficient treatment and these plants produced only 17 bolls per plant and it was significantly different (25 bolls) than the plant treated by 180 kg N ha -1 . Significant and negative correlations were reported between boll number per plant and micronaire and total dry matter yield were found at K fertilization treatments. Positive and significant correlations were determined between gin turnout and micronaire and between fiber strength and total biomass production at N fertilization. The highest fiber strength was recorded in the plant treated by the combination of 240 kg ha -1 nitrogen and 50 kg ha -1 potassium. For fiber length and fiber strength, no significant differences were reported among the various treatments of potassium. From the results of this study it can be concluded that combination of 180 kg ha -1 nitrogen and 100 kg ha -1 potassium are suitable for the production of cotton crop.

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Reproductive Performance and Fiber Quality Responses of Cotton to Potassium Nutrition

Cited by 16 publications

References 37 publications

Planting Geometry Effects on the Growth and Yield of Dryland Cotton

Planting Geometry Effects on the Growth and Yield of Dryland Cotton

Equal K Amounts to N Achieved Optimal Biomass and Better Fiber Quality of Late Sown Cotton in Yangtze River Valley

Optimizing yield and fiber quality of cotton under mediterranean environment: managing nitrogen and potassium nutrition

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