土壤酸化对晚稻产量的影响及品种耐酸性比较（英文）

Effects of Soil Acidification on Yield of Late Rice and Differences in Acid Resistance among Varieties

以23个晚稻品种为材料,在湖南省长沙县进行大田试验,研究土壤酸化对晚稻产量的影响,并比较了品种耐酸性差异。结果表明：1各品种在普通大田产量为5226.6～9202.1kg/hm^2,在酸化大田产量为3643.2～7714.8 kg/hm^2,品种间差异显著;2与普通大田比较,酸化大田条件下岳优6135、华优18、金优284和Ⅱ优46产量提高,增幅为3.24%～26.33%,其他品种产量均下降,降幅为2.04%～56.79%;3根据产量变化的显著性,供试品种可分为3种类型,五丰优T025、荆楚优148、岳优6135、深优9586、湘丰优103、中优288、农香18、汕优432、Ⅱ优6号和中9A/R10402属酸性敏感型,五优308、准两优608、丰源优227、丰优1167、丰源优299、T优272、中9A/R9963属酸性中间型;岳优9113、金优284、深优9588、华优18、Ⅱ优46和Ⅱ优3027属酸性迟钝型。

Effect of soil acidification on yield of late rice was studied and acid resistance of late rice varieties were compared with 23 late rice varieties as materials in Changsha County, Hunan Province. The results indicated that the difference in yield among varieties was obvious, yield in common field was among 5 226.6-9 202.1kg/hm^2, and yield in acidified field was among 3 643.2-7 714. 8 kg/hm^2. Compared with common field, yield of Yueyou 6135, Huayou 18, Jinyou 284 and Ⅱyou 46 increased by 3.24%-26.33% in acidified field, while yield of other varieties decreased by 2.04%-56.79% in acidified field. According to acidification sensitivity, Wufengyou T025, Jinchuyou No.148, Yueyou No.6135, Shenyou No.9586, Xiangfengyou No.103,Zhongyou No.288, Nongxiang No.18, Shanyou No.432, Ⅱ you No.6, and Zhong 9A/R10402 were sensitive to soil acidification; Wuyou No.308, Zhunliangyou No.608,Fengyuanyou No.227, Fengyou No.1167, Fengyuanyou No.299, T you No.272, and Zhong 9A/R9963 were moderately sensitive to soil acidification; Yueyou No.9113,Jinyou No.284, Shenyou No.9588, Huayou No.18, Ⅱ you No.46 and Ⅱ you No.3027 were slightly sensitive to soil acidification