Influence of Sources and Levels of Boron on its Availability Tomato Yield and Fertility Status of Post-harvest Soil

The experimental soil was collected from Meethikudi village representing medium textured soil of Cuddalore district. The incubation experiment was conducted at Annamalai University to study the effect of boron fertilizers on its availability in soil. The four sources and three levels of boron were evaluated at 90 DAI. Addition of 1.5 mg B kg-1 through calcium boro humate with RDF recorded the highest value of water-soluble boron (1.7 mg kg-1) on 90 DAI and minimum under 0.5 mg B kg-1. The pot experiments were conducted to evaluate the response of tomato to sources of boron. Same set of treatments were followed as per incubation experiment. The higher fruit (1881 g pot-1) and stover (362 g pot-1) yield was received in treatment receiving B through calcium boro humate @ 1.5 mg kg-1 along with RDF. Post-harvest NPK status has not significantly affected by the treatments. Application of boron through polybor @ 1.5 mg kg-1 with RDF showed decreased available N (135.8 mg kg-1), available P (12.1 mg kg-1) and available K (68.4 mg kg-1). Application of 1.5 mg B kg-1 through calcium boro humate with RDF recorded the highest post-harvest available B status of 1.6 mg kg-1.

D. Venkatakrishnan*1, K. Dhanasekaran1, S. Thirumavalavan1, R. Bhuvaneswari1, P. K. Karthikeyan1 and B. Karthikeyan2 Click here to download file

Research Article | Published online : 17-May-2021