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Authors: IDATE, G.M
Advisor: Choudhari, Dr.S.M
More, Dr.T.A
Kaulgud, Prof S.N
Gorantiwar, Dr.S.D
Publisher: Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722
Language: en
Type: Thesis
Agrotags: null
Abstract: The investigations was carried out to study the effect of various levels of irrigation: and fertigation on growth, yield, quality and other traits of four year old pomegranate {Punica granatum L.) at Instructional-cum-Research Orchard, Department of Horticulture, Mahatma Phule Krishi Vidyapeeth, Rahuri during the year 1998 and 1999. Fertigation treatments comprised of 50, 75, 100, 125 and 150% of recommended dose (500 g N, 250 g P2O5 and 250 g K20 per plant) and compared with band placement with 10, 15 and 20% wetted area. Growth characters like plant height and spread are not significantly influenced by wetted area, fertilizer levels during 1998 and 1999. The plant spread was significantly influenced due to their interactions in pooled mean. Highest plant spread was recorded in 20% wetted area and 75% fertigation. Irrigation levels at 20% wetted area significantly increased the yield of pomegranate compared to 10% and 15% wetted area during 1998 but was non-significant during 1999. The highest yield was produced from mix wetted area in pooled mean. Irrigation level at 20% wetted area also significantly influenced the TSS:Acid ratio and N concentrations in the leaves of pomegranate 60 days after bahar treatment compared to 10% and 15% wetted area. However, the concentration of P and K was not influenced by different levels of irrigations, except P concentration during 1998. The highest water use efficiency was recorded from 100% fertigation during 1998 and 1999 which was at par with 75% fertigation and 125% fertigation in both the years. Application of 500 g N, 250 g P205 and 250 g K20 through water soluble fertilizers were (i.e. 100% recommended dose - T5) significantly increased the yield during 1998 and 1999 compared to the control but it was at par with T4 (75% fertigation) and T6 (125% fertigation in both the years. Since treatments T5 (100% recommended dose) and T4 (75% recommended dose) were at par for yield. The highest yield was produced in 20% wetted area and 75% fertigation in pooled mean. The 75%, 100% and 125% fertigation were at par with each other in pooled mean. Fertigation levels did not influence the TSS, acidity and T.S.S.: acid ratio, except TSS during 1999 compared to control. Fertigation levels were significantly influenced the N concentration in the leaves during 1998 and 1999 but did not influence the P and K concentration compared to the control (i.e. band placement with surface irrigation). Regarding soil nutrient status, the 20% wetted area recorded the highest organic carbon content and lowest pH. The available nitrogen was found to be less in fertigation as compared to control. There was no effect of fertigation on available phosphorus and potash which were minimum in 125% and 100% fertigation during the years 1998 and 1999, respectively and was at par with 75% fertigation. Thus, the application of a dose of 75% fertigation at 20% wetted area to pomegranate var. Mridula may be recommended to obtain' the highest fruit yield without affecting fruit quality.
Subject: Horticulture
Theme: Horticulture
These Type: Ph.D
Issue Date: 2001-01-01
Appears in Collections:Thesis

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