Response of Cauliflower (Brassica oleracea var. Botrytis) to the Application of Boron and Phosphorus in the Soils of Rupandehi District

Abstract

A field experiment was conducted at Paklihawa Campus of the Institute of Agriculture and Animal Science, Rupandehi, Nepal, during Oct 2004 to Feb 2005 to study the effects of boron and phosphorus on the soil nutrient status, nutrient uptake by plant and yield of cauliflower (Brassica oleracea var. botrytis L.) variety Snowball-16. Sixteen treatment combinations, including four levels of boron (0, 0.65, 1.3, 1.95 kg boron ha -1 ) and four levels of phosphorus (0, 30, 60, 90kg P 2 O 5 ha -1 ) were included. The soil was loamy with very low in boron. Curd yield, harvest index, boron and phosphorus uptake by plant and available boron in soil were significantly increased by the application of boron and phosphorus in soils. Available phosphorus in soils after the crop harvest was significantly increased by phosphorus application. The highest curd yield, boron and phosphorus uptake by plant as well as available boron and phosphorus in soils after the crop harvest were obtained from the application of 1.3 kg boron with 60 kg P 2 O 5 ha -1 . The boron uptake by plant was decreased by the application of more than 1.3kg boron ha -1 while the phosphorus uptake was increased with increased application of phosphorus upto 90 kg P 2 O 5 ha -1 . There were quadratic responses of curd yield, harvest index and plant boron uptake to the applied boron; quadratic response of plant phosphorus uptake to the applied phosphorus, while responses of curd yield, and harvest index to the applied phosphorus were linear. Highly significant positive correlations between curd yield and leaf boron content (r = 0.68**) as well as curd yield and plant phosphorus content (r = 0.79**) were observed. In conclusion, the combined application of 1.3 kg boron and 60 kg P 2 O 5 ha -1 was found to be the best for cauliflower production under Paklihawa soil conditions of Rupandehi district and can be recommended to the growers of this region.

Interactive Effect of Phosphorus and Boron on Their Temporal Soil Availability under Black Gram [Vigna mungo (L.) Hepper] Cultivation and Nodulation in Acid Inceptisol

“…The per cent increase from control to significantly highest soil available boron at 30 DAS was 131.85, 148.14 with an increase in 150, 167.24 per cent from control to significantly higher soil available boron at 60 DAS and per cent increase from control to significantly highest value after harvest was 198.81 per cent. Similar results were obtained by Dhakal et al (2009) after harvest of cauliflower (Brassica oleracea var. Botrytis) with the application of boron and phosphorus in the soils of Rupandehi district of Nepal.…”

Effect of some Inorganic NPK Fertilization Treatments on Cauliflower

“…Many investigators studied the effect of N, P and K either alone or in combinations with each other from recommendation doses of them or with some micronutrients especially boron on vegetative growth and productivity of some cruciferous vegetables and stated that increasing NPK fertilizer rates or doses increased plant growth, yield and quality (Cutcliffe and Munro, 1976;Csizinszky, 1996;Wenqiang et al, 2004;Dhakal et al, 2009;Li et al, 2011;Elahi, 2015;Filho et al, 2015;Sharma, 2016 andMetwaly, 2017) on cauliflower, (Islam et al, 2010;El-Helaly, 2012;Neethu et al, 2015;Singh et al, 2015;Doklega and Abd El-Hady, 2017) on broccoli. On the other hand, very few investigations have been made to study the influence of different blends of commercial inorganic NPK fertilizers resulting from combinations between NPK fertilizer ratio and rates on growth and field performance of either current or recent cauliflower cultivars.…”

Role of Vermicomposts Quality on Zinc and Boron Nutrition and Growth of Cauliflower

“…Specific deficiency symptoms like 'Hollow Heart' of cauliflower curd and yield response of cauliflower to B application were reported by different researchers [2,7,44,46,48]. Dhakal [13] reported that application of 1.3 kg B ha -1 to soil was sufficient for the highest yield of cauliflower. Association of 'Hollow Heart' disease of cauliflower with B deficiency was reported by Camargo et al [11], and they concluded that such disorder can be reduced by B fertilization.…”