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H. L. Sakarvadia ¹, K. B. Polara ¹, K. B. Parmar ¹, N. B. Babariya ¹, B. B. Kunjadia ¹

Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN

Abstract

A field experiment was conducted during 2004-05 and 2005-06 on medium black calcareous soil (Typic Ustocrepts) with cotton (G-cot-hy-10) using 5 levels of K (0, 90, 120, 150 and 180 kg ha^-1) and 3 levels of ZnSO₄ (0, 25 and 50 kg ha^-1). The significantly higher seed cotton (2345 kg ha^-1) and stalk (3679 kg ha^-1) yield of cotton were recorded with K₁₂₀ and K₁₈₀ treatments, respectively. Whereas the highest seed cotton yield (2269 kg ha^-1) and stalk yield (3540 kg ha^-1) were recorded with application of ZnSO₄ @ 50 kg ha^-1. The plant height (138.1 cm), boll weight (20.4 g) and oil content (18.52 %) were observed significantly higher with the application of potassium @ 120,150 and 180 kg ha^-1, respectively. While, number of bolls per plant, ginning percentage and test weight did not influence by potassium application. Application of zinc did not influence quality parameters except boll weight. The maximum uptake of K and Zn by seed cotton as well as stalk yield was recorded under application of 120 kg K₂O and 50 kg ZnSO₄ ha^-1, respectively.

Keywords

Potassium, Zinc, Growth, Seed Cotton Yield, Nutrient Content and Uptake.

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H. L. Sakarvadia ¹, K. B. Polara ¹, B. B. Kunjadia ¹, K. B. Parmar ¹, N. B. Babariya ¹

Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN

Abstract

A field experiment was conducted on medium black calcareous clayey soils duing kharif 2005 to 2007 at Pulse Research Station, J.A.U. Junagadh in factorial RBD having four replications and eight treatment combinations consisting of four levels of S (0, 20, 40 and 60 kg ha^-1) and two levels of K₂O (0 and 50 kg ha^-1). The varieties sown were Vaishali for pigeonpea and GG-7 for groundnut. The grain (1189 and 1183 kg ha^-1) and fodder (2971 and 3024 kg ha^-1) yield of pigeonpea as well as pigeonpea equivalent yield (1761 and 1752 kg ha^-1) were obtained significantly higher under application of 40 kg S and 50 kg K₂O per hectare, respectively. The content and uptake of S and K by crop were increased significantly under irrespective application of sulphur and potash. Similarly, the soil availability of S and K was also increased significantly with increased respective levels of S and K.

Keywords

Potassium, Sulphur, Pegionpea-Groundnut Relay Cropping, Nutrient Content, Uptake and Availability.

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H. L. Sakarvadia ¹, K. B. Polara ¹, K. B. Parmar ¹, N. B. Babaria ¹, B. B. Kunjadia ¹

Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN

Abstract

A field experiment was conducted on fixed plot during rabi 2000-01 to 2003-04 on medium black calcareous soil (Typic Ustocrepts) with garlic cv. GG-3 to study the effect of potassium (three levels 0, 50 and 75 kg K₂O ha^-1), and zinc (two levels 0 and 25 kg ZnSO₄ ha^-1) and FYM (20 t ha^-1) in a RBD having three replications. Significantly the highest bulb yield, leaves yield and bulb weight were recorded under application of ZnSO₄ @ 25 kg ha^-1 with potassium @ 75 kg ha^-1. Application of zinc and potassium also significantly increased the uptake of Zn and K by garlic. Available K and Zn progressively increased with increase in levels of respective elements.

Keywords

Garlic, Potassium, Zinc, Bulb Yield.

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K. B. Polara ¹, H. L. Sakarvadia ¹, K. B. Parmar ¹, N. B. Babariya ¹, B. B. Kunjadia ¹

Affiliations
1 Department of Agricultural Chemistry and Soil Science, Junagadh Agricultural University, Junagadh (Gujarat), IN

Abstract

A field experiment was carried out on medium black calcareous soil for four years (2001-2004) on fixed plots at Vegetable Research Station, JAU, Junagadh with two levels of Zn (0 and 25 kg ZnSO4 ha^-1), three levels of K (0, 50 and 75 kg K₂O ha^-1 as muriate of potash) and their combinations (T₁ to T₆) and T₇ as FYM 20 t ha 1 in RBD with four replications. The pod and haulm yields of groundnut were significantly affected by the residual effect of Zn, K and FYM applied in individual years as well as in pooled, except haulm yield during 2002,2003 and in pooled. The average highest pod (2874 kg ha-1) yield was recorded with treatment combinations of Zn₂₅K₇₅ (T₆),which was 27 per cent higher pod yield over control (T₁). The significantly higher shelling percentage, test weight and oil content were recorded with treatment T₃, T₆ and T₇, respectively. Uptake of Zn and K by pod and haulm were significantly affected by the different treatments and were recorded highest with treatment T₆. Soil available K and Zn progressively increased with increasing levels of respective elements and found highest with treatment T₆.

Keywords

Residual Effect, K and Zn Nutrition, Groundnut Yield.

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