RESPONSE OF GUM GUAR [Cyamopsis tetragonoloba (L.) Taub.] TO IRRIGATION AND FERTILITY LEVELS IN SUMMER SEASON
KrishiKosh
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Title |
RESPONSE OF GUM GUAR [Cyamopsis tetragonoloba (L.) Taub.] TO IRRIGATION AND FERTILITY LEVELS IN SUMMER SEASON
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Creator |
BHUVA HASMUKH MANSUKHLAL
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Contributor |
Sagarka B. K
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Subject |
irrigation, fertilizers,
AGRONOMY |
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Description |
Key words: Gum guar, irrigation, fertility levels, IW:CPE ratio. A field experiment entitled “Response of gum guar [Cyamopsis tetragonoloba (L.) Taub.] to irrigation and fertility levels in summer season” was conducted at Nana-Kandhasar (Chotila, Surendranagar) on sandy loam soils during summer season of 2013 and 2014. The treatments comprising of four levels each of irrigation and fertility were tested using split plot design with three replications. The results revealed that irrigation at 0.8 IW:CPE enhanced the growth parameters viz., plant height, number of branches, number and dry weight of root nodules, dry matter plant-1, leaf area index, CGR, RGR and NAR, yield attributes viz., days to 50% flowering, number of pods plant-1, number of seeds pod-1, pod length, 1000-seed weight and shelling per cent, quality parameters viz., protein content, protein yield, gum content and gum yield along with seed yield, stover yield and harvest index and also significantly enhanced nutrients (NPK) content and uptake by seed and stover with higher net returns of ` 53895 ha-1 and B:C ratio of 2.29 over 0.4 IW:CPE ratio. The maximum CUW was noticed under 1.0 IW:CPE ratio, while the maximum WUE, WEE and residual availability of P and K in soil were persisted under 0.4 IW:CPE. Maximum moisture extraction from the upper soil profile was recorded under 1.0 IW:CPE ratio, whereas moisture extraction to a lower depth was higher with 0.4 IW:CPE ratio. Application of 20-40 kg N-P2O5 ha-1 promoted growth parameters viz., plant height, number of branches, number and dry weight of root nodules, dry matter plant-1, leaf area index, CGR, RGR and NAR, yield attributes viz., days to 50% flowering, number of pods plant-1, number of seeds pod-1, pod length, 1000-seed weight and shelling per cent, quality parameters viz., protein content, protein yield, gum content and gum yield along with seed yield, stover yield and harvest index and also significantly improved nutrients (NPK) content and uptake by seed and stover with higher net returns of ` 52967 ha-1 and B:C ratio of 2.24 than control. The maximum CUW, WUE, WEE and residual availability of N and P in soil were noticed under 30-60 kg N-P2O5 ha-1. Maximum moisture extraction from the upper soil profile was recorded under control, whereas moisture extraction to a lower depth was higher with 30-60 kg N-P2O5 ha-1. |
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Date |
2016-09-28T08:48:35Z
2016-09-28T08:48:35Z 2015-07 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/79217
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Language |
en
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Format |
application/pdf
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