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汕优85是一个高产、稳产、抗稻瘟病的杂交晚稻中迟熟组合,通过几年试种,经历了旱、涝、穗期低温等不良气候条件的严峻考验,表现出耐涝、耐旱等特性,试种面积逐年扩大。为了探索汕优85的高产栽培技术,以期良种良法配套,我们对该组合的秧龄弹性进行了试验。一、试验设计试验地安置在浙江省东阳巍山镇沈良村,北纬29°20’,东经120°24’,常年水稻生长季节的活动积温5018℃,为一双季稻区,其中,晚季以汕优85当家。本试验采用两段育秧,第一段为19天,后一段分别为21天、24天、27天、30天、33天,即总秧龄分别为40、43、46、49和52天5种处理。随机区组,3次重复,小区面积为0.02亩,为了便于试验情况的交流及其试验结果在其它地区的参考应用,
Shanyou 85 is a late-maturing combination of late hybrid rice with high yield, stable yield and blast resistance. After several years of trial planting, it experienced severe tests of adverse climatic conditions such as drought, waterlogging and spike temperature, showing waterlogging tolerance and drought tolerance And other characteristics, test area has expanded each year. In order to explore the high-yielding cultivation techniques of Shanyou 85, in order to support good varieties of good law, we tested the seedling age elasticity of this combination. I. Experimental design The experimental design was housed in Shenliang Village, Weishan Town, Dongyang, Zhejiang Province. The accumulated accumulated temperature was 5018 ℃ in the perennial rice growing season at 29 ° 20 ’and 120 ° E, 85 to Shanyou home. In this experiment, two stages of nursery seedlings were used. The first period was 19 days and the last period was 21 days, 24 days, 27 days, 30 days and 33 days respectively, that is, the total seedling age was 40, 43, 46, 49 and 52 days deal with. Randomized block, 3 repetitions, plot area of 0.02 acres, in order to facilitate the exchange of test conditions and test results in other regions for reference applications,