Record Details

RESPONSE OF GAILLARDIA (Gaillardia pulchella var. Lorenziana) CV. LOCAL DOUBLE TO DIFFERENT LEVELS OF NITROGEN, PHOSPHORUS AND POTASSIUM AND THEIR UPTAKE

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Title RESPONSE OF GAILLARDIA (Gaillardia pulchella var. Lorenziana) CV. LOCAL DOUBLE TO DIFFERENT LEVELS OF NITROGEN, PHOSPHORUS AND POTASSIUM AND THEIR UPTAKE
 
Creator KARETHA KHODA MANSUR
 
Contributor GAJIPARA N.N.
 
Subject Horticulture
 
Description A field experiment entitled “Response of gaillardia (Gaillardia pulchella var. Lorenziana) cv. Local Double to different levels of nitrogen, phosphorus and potassium and their uptake”, was conducted at Instructional Farm, Department of Horticulture, Junagadh Agricultural University, Junagadh on medium black calcareous soil, during rabi seasons of two consecutive years i.e.2003-04 and 2004-05.
The experiment comprising 24 treatment combinations consisted of four levels of nitrogen (0, 100, 200 and 300 kg N/ha), three levels of phosphorus (0, 75 and 100 kg P2O5/ha) and two levels of potash (0 and 75 kg K2O/ha), were tried in Factorial Randomized Block Design with three replications.
The results of the experiment indicated that, application of nitrogen @ 300 and 200 kg N/ha significantly improved growth parameters viz., plant height, number of branches per plant, leaf area, fresh and dry weight
ABSTRACT
of vegetative parts of the plant and yield attributes viz., fresh and dry weight of flower parts of the plant, weight of 10 flowers and diameter of flower, which resultantly gave higher flower yield over control. The gross return was higher with 300 kg N/ha, where as net return as well as B:C ratio were higher with 200 kg N/ha over control.
Nitrogen fertilization at 300 and 200 kg/ha significantly delayed flower bud initiation and first flower opening, however extended the flowering span as compared to control. Quality parameters viz., length of pedicel, vase life of cut flower and longevity of flowers in situ were higher with 300 and 200 kg N/ha in comparison to control. Content of nitrogen and potash in vegetative and flower parts of the plant, as well as uptake of nitrogen, phosphorus and potash, were significantly higher with 300 and 200 kg N/ha over control. Post harvest availability of nitrogen in soil was increased with application of 300 and 200 kg N/ha compared to control, however phosphorus content in vegetative and flower parts of the plant, as well as availability of phosphorus and potash in soil after harvest of the crop did not fluctuate under different levels of nitrogen.
The results showed that, phosphorus fertilization @ 100 and 75 kg P2O5/ha recorded significantly higher values of growth characters viz., plant height, number of branches per plant, leaf area, fresh weight and dry weight of vegetative parts of the plant, as well as yield attributes viz., fresh and dry weight of flower parts of the plant, weight of 10 flowers and diameter of flower and ultimately higher flower yield over control. Maximum gross returns was realized with application of 100 kg P2O5/ha, however maximum net return and B:C ratio were secured with that of 75 kg P2O5/ha.
Significantly earliest flower bud initiation and first flower opening were observed with highest dose of phosphorus i.e. 100 kg P2O5/ha, however it resulted in reduced flowering span. Different levels of phosphorus failed to manifest their significant influence on flower quality parameters viz., length of pedicel of cut flower, vase life of cut flower and longevity of flowers in situ. Application of 100 kg P2O5/ha recorded significantly higher phosphorus content in vegetative and flower parts of the plant as well as uptake of nitrogen, phosphorus and potash, but remained at par with that of 75 kg P2O5/ha in respect of phosphorus content in vegetative parts of the plant. However, phosphorus fertilization did not exert significant influence on nitrogen content and potash in vegetative and flower parts of the plant. Phosphorus applied @ 100 kg P2O5/ha recorded significantly higher availability of phosphorus in soil after harvest of the crop, although post harvest availability of nitrogen and potash in soil remained unaffected due to phosphorus levels.
The results revealed that, application of potash @ 75 kg K2O/ha significantly improved growth characters viz., plant height, number of branches per plant, leaf area, fresh and dry weight of vegetative parts of the plant, as well as yield contributing characters like fresh and dry weight of flower parts of the plant and weight of 10 flowers, which eventually gave higher flower yield over control. Potash fertilization @ 75 kg K2O/ha accrued higher gross return, net return and B:C ratio over control.
Application of 75 kg K2O/ha significantly hastened the flower bud initiation and flower opening over control; but did not affect the flowering span. Potash fertilization did not impart their significant influence on flower quality parameters viz., length of pedicel and vase life of cut flower, however application of 75 kg K2O/ha significantly
increased longevity of flowers in situ over control. Application of 75 kg K2O/ha recorded significantly higher content of nitrogen in flower parts of the plant, content of potash in vegetative and flower parts of the plant, as well as uptake of nitrogen, phosphorus and potash over control. However, potash fertilization did not manifest significant impact on content of nitrogen in vegetative parts of the plant and phosphorus content in vegetative and flower parts of the plant. Application of potash 75 kg K2O/ha significantly increased availability of potash in soil after harvest of the crop as compared to control, although post harvest availability of nitrogen and phosphorus in soil remained unaltered due to potash application.
In nut shell, on the basis of two years field study, it seems quite logical to conclude that, for profitable cultivation of gaillardia variety Local Double, under South Saurashtra Agro-climatic conditions, application of 200 kg nitrogen, 75 kg phosphorus and 75 kg potash per hectare (half dose of nitrogen and full dose of phosphorus and potash at the time of planting, and remaining half dose of nitrogen at 30 days after planting), has been found optimum fertilizer dose on medium black, calcareous soil having moderate available nitrogen and potash with low in available phosphorus.
 
Date 2016-09-08T15:56:34Z
2016-09-08T15:56:34Z
2006-11
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/76146
 
Language en
 
Format application/pdf