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Effect of Application of Npk Fertilizers on Growth and Yield of Elachi Lemon

M. A. Haque
Bangladesh AgricuItural Research Institute. Joydebpur. Gazipur.

A. M. Abdullah
Bangladesh AgricuItural Research Institute. Joydebpur. Gazipur.

M. A. Rouf
Bangladesh AgricuItural Research Institute. Joydebpur. Gazipur.

M. S. Islam
Bangladesh AgricuItural Research Institute. Joydebpur. Gazipur.

Abstract/ Executive Summary:

Application of nitrogen alone increased the growth and yield of lemon significantly. Phosphorus, potash and their interactions failed to produce any significant effect on the growth and fruit yield. Fruit quality was also not affected by any of the NPK treatments.

Keywords: NPK fertlizer, Growth and yield, Elachi lemon

Location: Bangladesh Agricultural Research lnstitute. Joydebpur

Start Date: 00-07-1980

End Date: 00-12-1985

Program Area: Crop-Soil-Water Management

Commodity: Lemon

Objectives:

To maximise the yield of lemon fruit through the use of NPK fertilizers

Methodology:

The experiment was conducted at the Citrus and Vegetable Seed Research Centre of the Bangladesh Agricultural Research lnstitute. Joydebpur during the period from July 1980 to December 1885. The soil of the experimental field was silty loam containing 0.44% orqanic carbon. 0.071 % total N. 19µg/g avai- lable P. 851l-g/g exchangeable K and pH. 6.4. The trial was set up in RCB design with three replications. The plot size was 6X6m. The Plant to plant and row row distances were 3X3m. One year old Elachi lemon gootees were planted in 1 X 1m pits. The rates of N fertilizer used as urea for 5- consecutive years ( 1980-1985) were 60.75.105.150 and 210 g/plant; P₂0₅ as triple superphosphate were 105. 45. 75. 105 and 150 g/plant and K₂0 as muriate of potash were 60. 45. 75. 105 and 210 g/plant. There were eight treatment combinations e. g. NoPoKo. N 1 PoKo, NoP₁Ko.NoPoK₁, ~ ? ]Ko.N₁Po K₁, NoP₁K₁ and N₁P₁K₁. In addition, 10kg cowdung for the first year and 5kg for the subsequent years were applied to Effect of application of NPK Iertiuzets each plant. Before planting, one third of the fertilizers and .vhole of cowdunq were applied in pit and remaining two thirds were applied around the plants in two installments. From the second year, fertilizers were applied in three equal installments in the month of February. May and September and cowdung once a year in the month of February. Intercultural operations such as irrigation. weeding, pruning. splaying insecticide and fungicide were done as and when necessary The fruits were collected randomly from each plant and analysed in the laboratory. Data on plant height. base girth growth (height spread). number of fruit and yield/Plant. fruit weight. thickness of rind. number of seed. weight of seed. % Juice. % total soluble solid ( TSS) and % total acid were recorded. The total acid was measured directly by an electrically operated Acid Analyser ( Atage Company l.td ; Medel No. FS-2. Japan) and total soluble solid (TSS) by a Hand Refractometer (Atago Com- pany Ltd; Atago N1. Japan). Data were analyzed statistically following steel and Torrie (1960).

Source of Information: Bangladesh Hort. 15 (1) : 7-12. 1987

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results of this experiment clearly indicate that application of N has positive effect on growth and yield of lemon trees. Fruit quality was not affected by any of NPK treatments which may however be attributed to varietal character.

Knowledge Management: Journal