Abstract:

In the pea field, nitrogen fertilizer amount and application methods were studied for edible-podded pea production in Yuxi City, where nitrogen has been applied much more than pea needs. The results showed that nitrogen amount and rate to phosphorus fertilizer had significant effect on dry weight of root nodule and fresh pea pod. Nitrogen fertilizer was not suitable for seeding, but phosphorus was well. Fresh pea yield increased most when no nitrogen and 50%-100% phosphorus fertilizer were used during seeding and then 600-750 kg/hm2 nitrogen, 60 kg/hm2 P2O5 and 75 kg/hm2 K2O were applied for 12-15 times.