嘉系15是我县一九七三年从后季稻中系统选育而来的晚粳新品系。经多年试种,面积不断扩大,82年作单季稻,种植18145亩,后季稻122672亩,占后季稻总面积58％。82年嘉系15平均亩产800斤以上,低产年份亩产也可达600斤左右。主要特点 1.生育期短、成熟早。嘉系15属早熟晚粳。主茎总叶数14.5～15张,叶色深绿,比晚粳双丰一号深0.5级。作后季稻栽培,6月16～20日播种,9 Jia-15 is a new japonica rice line derived from the system of late rice in 1973 in our county. After many years of trial planting, the area has been expanding. 82 years of single cropping rice, planting 18,145 acres, 122672 acres of the latter quarter of rice, accounting for 58% of the total area of ​​the latter season rice. 82 years Jiaxing 15 average yield more than 800 pounds, low-yielding year mu yield up to 600 pounds. The main features 1. The growth period is short, mature early. Jia Department of 15 is a precocious late japonica. The main stem of the total number of leaf 14.5 ~ 15, dark green leaves, compared with the late Japonica Shuangfeng on the 1st 0.5. For later rice cultivation, June 16 ~ 20 sowing, 9