摘要
以湘晚籼13号为供试材料,通过田间小区试验研究叶面喷施水溶性硅肥对水稻产量、经济性状及稻米镉含量的影响。结果表明:喷施水溶性硅肥(水剂)处理能有效提高晚稻有效穗数、每穗实粒数和结实率,明显改善晚稻经济性状,且较喷施清水处理和不喷施处理极显著增产8.82%和8.02%,纯收入增加88.6和33.0元/667m2,投入产出比为1∶1.5,经济效益增幅明显。晚稻喷施水溶性硅肥(水剂)处理稻米镉含量较不喷施处理降低0.026 mg/kg,下降24.3%,具有一定的阻镉作用。因此,叶面喷施水溶性硅肥是稻田增效提质的一项重要施肥技术。
The effect of water-soluble silicon fertilizer on rice yield,economic characteristics and cadmium content was studied by field plot experiment with Xiangwanxian No.13.The results showed that spraying water-soluble silicon fertilizer(aqua)could effectively increase the effective panicle number,grain number per panicle and seed setting rate of late rice,and significantly improve the economic characteristics of late rice.Compared with spraying clean water treatment and non-spraying treatment,the yield of late rice increased by 8.82%and 8.02%,and net income increased by 1329 and 495.0 yuan/hm2,and the input-output ratio was 1∶1.5,and the economic benefit increases obviously.The Cd content of late rice treated with water-soluble silicon fertilizer(aqua)decreased by 0.026 mg/kg and 24.3%compared with that treated without water-soluble silicon fertilizer.Therefore,foliar spraying of water-soluble silicon fertilizer is an important fertilization technology for improving the efficiency and quality of paddy fields.
作者
陈涛
CHEN Tao(Xiangtan Agricultural Committee,Xiangtan 411100,PRC)
出处
《湖南农业科学》
2018年第11期53-55,共3页
Hunan Agricultural Sciences
关键词
水溶性硅肥
水稻
产量
经济性状
稻米镉
water-soluble silicon fertilizer
rice
yield
economic characteristics
rice cadmium
