volume 34 issue 3 (september 2000) : 160·163
RESPONSE OF LUCERNE TO DIFFERENT MOISTURE REGIMES, PHOSPHATE LEVELS AND SOWING METHODS
1Department of Agronomy
c.P. College of Agriculture, GAU, Sardar Krushinagar·385 506, India
ABSTRACT
A field experiment on lucerne comprising of three irrigation schedules based on IW/CPE ratio (0.75, 1.00 and 1.25), two sowing methods (broadcasting and line sowing at 25 cm) as main plot and four levels of phosphorus (60, 80, 100 and 120 kg P2O5/ha) in sub plot was laid out in split plot design during rabi season of 1992–93 and 1993–94. The results indicated that irrigating the crop at an IW/CPE ratio of 1.25 produced significantly higher dry fodder yield (99.2 q/ha). Similarly phosphorus and potash content as well as uptake of nitrogen (288.8 kg/ha), phosphorus (44.5 kg/ha) and potash (346.1 kg/ha) was higher on pooled basis in the ratio of 1.25 then IW/CPE ratios of 1.00 and 0.75. Whereas a reverse trend was observed in case of nitrogen content. The dry fodder yield and content arid uptake of nutrients did not differ significantly due to sowing methods, except the phosphorus content. However, dry fodder yield and N, P and K uptake were significantly higher in line sowing during 1992–93. The percentage increase in dry fodder when crop fertilized with 80, 100 and 120 kg P2O5/ha were 12.2, 24.6 and 33.5, respectively over 60 kg P2O5/ha on pooled basis. The successive increase in P levels also increased the content and uptake of N, P and K
KEYWORDS
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Indian Journal of Agricultural Research
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