Effect of seedling age, number and spacing on yield and nutrient uptake of traditional Kambanchamba rice

摘要

An experiment was conducted at Annamalai University Experimental Farm, Annamalainagar during Samba season of 2000. Age of seedlings viz. 30, 40 and 50 days, number of seedlings viz. 2 and 4 seedlings hill~(-1) and spacing viz. 20 X 15, 20 X 10 and 15X 15 cm were tested in split-split plot design replicated thrice. It was found that planting of 40 days old seedlings @ 2 seedlings hill~(-1) with a spacing of 20 X 15 cm was optimum in increasing the yield of Kambanchamba rice for the tract of old Cauvery delta zone. The N, P and K uptake were higher in the same treatment.