长香稻4号长香稻4号是黑龙江省优秀农民技术员、农民育种家周振学育成的。做法:选用大穗2号种作母本材料,以127和沙沙尼作父本,采用常规复合育种法进行而成。植物学特征:本品系属杆大、叶大、穗大等特点。株高105厘米,剑叶上举,穗粒紧凑,平均每穗粒数150粒左右,大部分穗都在170粒左右,最大穗320粒,穗长20～22厘米,颖尖褐色有短芒,千粒重29.8克,分蘖力中等1:8。生物学特性:生育期为115天,需活动积温2300℃,芽 Chang-Xiang-4 Chang-Xiang-4 on the 4th Heilongjiang Province outstanding peasant technician, farmer breeder Zhou Zhen learn into. Practice: Select big spike No. 2 as female parent material to 127 and Chasani parent, using conventional composite breeding method. Botanical characteristics: This product is a large rod, leaf large, spike and so on. Height of 105 cm, the flag leaves on the move, spike compact, with an average of about 150 grains per spike, most of the spike in about 170, the largest spike 320, spike length 20 to 22 cm, , Grain weight 29.8 grams, tillering ability medium 1: 8. Biological characteristics: Growth period of 115 days, required activity accumulated temperature 2300 ℃, buds