喷施宝有机水溶肥对杂交晚稻增产及稻米降镉的效果  

Yield-Increasing and Cadmium-Reducing Effects of the Organic Water-Soluble Fertilizer Penshibao on Hybrid Late Rice

作　　者：刘新鑫 LIU Xin-xin(Agricultural Comprehensive Service Center of Pingshang Town in Xinshao County,Xinshao 422900,PRC)

机构地区：[1]新邵县坪上镇农业综合服务中心,湖南新邵422900

出　　处：《湖南农业科学》2024年第11期43-46,共4页Hunan Agricultural Sciences

摘　　要：为探明喷施宝有机水溶肥对杂交晚稻增产及稻米降镉(Cd)的效果,在轻度Cd污染(土壤Cd含量0.43 mg/kg)稻田进行了田间试验。试验设3个处理,T_(1):常规施肥+喷施宝有机水溶肥料(水剂)1500 mL/hm^(2)对水750 kg/hm^(2)分别于杂交晚稻孕穗期和破口期进行叶面喷施;CK1(清水对照):常规施肥+喷施T_(1)等量清水;CK2(空白对照):常规施肥不喷喷施宝有机水溶肥料(水剂),不喷清水。结果表明:与对照比较,T_(1)可明显改善植株经济性状,显著增加每穗实粒数,可显著增产8.7%~9.1%;稻谷纯收入增加1189.6~1411.6元/hm^(2),增收6.6%~8.0%,经济效益显著;稻米镉含量0.171 mg/kg,降至国家安全标准以内,降Cd率44.7%~47.4%,降Cd效果极显著。因此,喷施宝有机水溶肥可在邵阳市晚稻种植区及轻度Cd污染的酸性稻田中推广应用。To explore the yield-increasing and cadmium(Cd)-reducing effects of the organic water-soluble fertilizer Penshibao on hybrid late rice,a field experiment was conducted in the paddy field with mild Cd contamination(soil Cd concentration:0.43 mg/kg).The experiment was designed with three treatments:T_(1)(conventional fertilization+foliar application of Penshibao at 1500 mL/hm^(2) mixed with 750 kg/hm^(2) water at the booting and early heading stages),CK1(water control,conventional fertilization+an equivalent amount of water to that in T_(1) at the same stages),and CK2(blank control,conventional fertilization without any foliar application).The results showed that compared with CK1 and CK2,T_(1) significantly improved the economic traits(especially numbers of full seeds per panicle)of rice,increasing the yield by 8.7%to 9.1%.Additionally,T_(1) increased the rice net income by 1189.6 to 1411.6 yuan/hm^(2),reflecting a revenue increase of 6.6%to 8.0%.Furthermore,T_(1) reduced the cadmium concentration in rice seeds to 0.171 mg/kg,well within the safety limit in the national standard,achieving a Cd reduction rate of 44.7%to 47.4%.In conclusion,the application of Penshibao was recommended for promotion in the late rice planting areas of Shaoyang City,particularly in the acidic paddy fields with mild Cd contamination.

关 键 词：有机水溶肥 喷施宝 杂交晚稻 产量 稻米降镉 

分 类 号：S145.2[农业科学—肥料学] S511.330.6[农业科学—农业基础科学]