Modeling the Influence of Nitrogen Rate and Plant Density on Seed Yield, Yield Components and Seed Quality of Safflower

Mohsen, Ashraf El-

doi:10.9734/ajea/2013/2886

Cited by 12 publications

(10 citation statements)

References 25 publications

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“…The data corroborate those of the reference [10], in which safflower plants reacted similarly to nitrogen application. These authors obtained positive responses to the nitrogen dose of 120 kg•ha −1 , when the plants reached height of 125 cm.…”

Section: Resultssupporting

confidence: 89%

“…The number of heads per plant may be one of the yield components that have more influence on the final production of safflower. The reference [22] found a higher number of heads per plant in the nitrogen rate of 80 kg•ha −1 , yet the reference [10] obtained better results in the dose of 120 kg•ha −1 , with production of 7.5 heads per plant.…”

Section: Resultsmentioning

confidence: 91%

“…Other authors have shown to be more cautious and do not suggest a fixed dose, but a range in which one can get the maximum crop production, the reference [10] suggests a dose of 80 -120 kg•ha −1 and the reference [11], the dose of 125 -175 kg•ha −1 of nitrogen. Growing in pots and in greenhouse conditions, the reference [12] finds the dose of 95 mg•dm −3 as the one that promotes the best development for safflower culture.…”

Section: Introductionmentioning

confidence: 99%

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Development of Safflower Subjected to Nitrogen Rates in Cerrado Soil

Bonfim-Silva¹,

Paludo²,

Sousa³

et al. 2015

AJPS

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In a context in which the nitrogen fertilizer recommendations in the literature for safflower crop show up conflicting, it was aimed by the present study to evaluate the development of safflower when subjected to nitrogen rates in an Oxisol collected under Cerrado vegetation. The experiment was conducted in a greenhouse using pots filled with Oxisol collected in area under Cerrado vegetation in the layer from 0.0 to 0.20 m. Each experimental unit was represented by a plastic pot of 5 dm −3 , the experimental design was completely randomized, consisting of six nitrogen rates (0, 60, 120, 180, 240 and 300 mg•dm −3) and six repetitions. It were assessed plant height, number of leaves, chlorophyll content, number of heads, dry mass of shoot and dry mass of root. The results were submitted to variance analysis and, when significant, to regression analysis, both at 5% probability by SISVAR program. Nitrogen rates positively influence the development of safflower, and the one that best promotes this development is between 160 and 190 mg•dm −3 .

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Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Development of Safflower Subjected to Nitrogen Rates in Cerrado Soil

Bonfim-Silva¹,

Paludo²,

Sousa³

et al. 2015

AJPS

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“…Safflower has nutritional requirements that are similar to those of wheat, but it can access deeper layers of nutrients due to its root system (Haghighati, 2010). All nutrients are important for the crop, however, studies indicate that basic fertilization with nitrogen (N) (Dordas and Sioulas, 2008;Yau and Ryan, 2010;El-Mohsen and Mahmoud, 2013), phosphorus (P) (Abbadi and Gerendas, 2011;Golzarfar et al, 2012) and potassium (K) (Hussien and Wuhaib, 2010;Palizdar et al, 2011;Abbasieh et al, 2013) has been highly efficient on safflower growth throughout the world. The effects of fertilization on safflower development http://dx.doi.org/10.1016/j.indcrop.2016.09.041 0926-6690/© 2016 Elsevier B.V. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Fertilizer improves seed and oil yield of safflower under tropical conditions

Sampaio

Santos

Bassegio

et al. 2016

Industrial Crops and Products

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a b s t r a c tSafflower (Carthamus tinctorius L.) has gained importance as an oilseed crop due to its hardiness and oil, which can be used in the production of biofuels. Studying proper crop management methods is highly important for the development of safflower in Brazil, since applying fertilizers correctly and using the appropriate time are efficient ways to achieve higher yield. Thus, the objective of this study was to evaluate safflower yield components, seed yield and oil content in two growing seasons. Two experiments under dryland conditions were conducted in 2014 in Cascavel, PR, Brazil. A randomised complete block design with three replications was used. Five rates of NPK fertilizer were used (0, 200, 400, 600 and 800 kg ha −1 of N-P 2 O 5 -K 2 O formula 4-14-8) in two growing seasons (autumn and winter). Even in a Rhodic Acrudox with high concentrations of P and K, the application of NPK fertilizer in the furrow improved seed yield and oil yield in the autumnal growing season. Safflower seed yield averaged 2068 and 3820 kg ha −1 in autumn and winter, respectively. The application of NPK fertilizer to safflower in the autumnal growing season significantly increased oil content (23.9%). The linear plateau model predicted increased yield with NPK rates <652 kg and <610 NPK ha −1 , resulting in seed yield and oil yield of approximately 4374 kg ha −1 and 1048 kg ha −1 , respectively. Safflower seems promising as an alternative oilseed crop for Southern Brazil when seeded in autumn with basic fertilization.

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“…The root system of safflower plants can reach down to 1.0 m depth, which is an advantageous characteristic for accessing water and nutrients in deeper soil layers (Haghighati, 2010; Herdrich, 2001; Montoya, 2010). Studies have reported safflower to be responsive to N, P, and K fertilization under variable conditions, including the drylands of Iran (Abbasieh, Shirani, Delkhosh, & Mohamadi, 2013; Golzarfar, Rad, Delkhosh, & Bitarafan, 2012; Haghighati, 2010), Egypt (El‐Mohsen & Mahmoud, 2013), Mediterranean region of Greece (Dordas & Sioulas, 2009), and the fall‐winter season of Brazil (Sampaio et al., 2016). However, the peer‐reviewed literature does not provide a complete assessment of the nutritional requirements in each of the safflower's growth stages or information on the demand for secondary macronutrients and micronutrients.…”

Section: Introductionmentioning

confidence: 99%

Biomass and nutrient accumulation and partitioning of fall‐winter safflower in a double‐cropping system of southeastern Brazil

et al. 2020

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The quantification of nutrient uptake and partitioning during crop cultivation, as well as nutrients removed at harvest, are essential information to optimize nutrient management. A 2‐yr field experiment was conducted in Botucatu, São Paulo State, southeastern Brazil, to examine the biomass accumulation and nutritional requirements and removal of two safflower (Carthamus tinctorius L.) genotypes cultivated in the fall‐winter season of a double‐cropping system. Seven plant samplings were performed during the growing season, and the material was divided into stems, leaves, and reproductive structures. Seed yield and nutrient removal were determined at harvest. Safflower genotypes had similar 2‐yr average biomass accumulations and seed yields. There were greater plant growth and nutrient uptake from stem elongation to seed filling, compared to the other growth stages. The maximum rates of nutrient uptake were observed near the flowering stage. On average, a maximum uptake of 169 kg N, 16 kg P, 178 kg K, 121 kg Ca, 16 kg Mg, 15 kg S, 130 g Cu, 3298 g Fe, 420 g Mn, and 351 g Zn per hectare were required to produce about 10,500 and 1,400 kg ha−1 of aboveground biomass and seeds, respectively. Relative to the maximum aboveground nutrient accumulation, seeds contained 28% of P, 24% of N, 22% of Zn, 16% of Cu, 11% of Mg, 10% of S, 6% of K, 5% of Mn, 4% of Ca, and 4% of Fe. These quantifications of biomass and nutrient accumulation and partitioning in each growth stage of fall‐winter safflower can be used as guidelines for fertilizer recommendations for this crop in double‐cropping systems.

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Modeling the Influence of Nitrogen Rate and Plant Density on Seed Yield, Yield Components and Seed Quality of Safflower

Cited by 12 publications

References 25 publications

Development of Safflower Subjected to Nitrogen Rates in Cerrado Soil

Development of Safflower Subjected to Nitrogen Rates in Cerrado Soil

Fertilizer improves seed and oil yield of safflower under tropical conditions

Biomass and nutrient accumulation and partitioning of fall‐winter safflower in a double‐cropping system of southeastern Brazil

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