近年我区晚稻“发黃”的原因,各地有不同的看法。現将五塘实驗区晚稻“发黃”情况和我們的看法报道如下,以供参考。一、晚稻叶片发黄情况:五塘实驗区晚稻叶片的发黃,开始于8月上旬,卽在晚稻分蘖盛期开始发生,中旬扩大,沒有出現发病中心,至8月下旬发生普遍,本地一向栽培的老品种和引进的矮稈新品种,以及用早稻品种翻秋的都有发生;9月上旬发生严重,有的植株枯萎,形成缺蔸,用早稻品种翻秋 In late years of our region, “yellowing” of late rice causes all over the world to have different opinions. Now Wutang experimental area late rice “yellow” situation and our report as follows, for reference. First, the yellow leaves of late rice situation: Yellow leaves of Wutang experimental area yellow, began in early August, 卽 in the tillering stage of late rice began to occur, mid-scale expansion, there is no incidence of centers until late August occurred in general, the local has always been The cultivated old varieties and the introduction of new dwarf varieties, as well as the use of early rice varieties turning autumn have occurred; in early September a serious, some plants withered, the formation of lack of 翻, early autumn varieties with autumn