摘要
为了验证土壤调理剂对降低稻米镉含量和提高水稻产量的作用,于2018年7月-11月进行了该产品在水稻上的田间试验。结果表明:与不施土壤调理剂的对照相比,施用土壤调理剂能改善水稻多项经济性状,水稻株高、有效穗、穗长、穗总粒数、穗实粒数、结实率和千粒重均有所增加。根据水稻产量构成性状计算的理论产量看,稻谷增产率在11.1%-15.4%,增产效果显著,对降低土壤有效镉有一定的效果;同时还能有效降低稻谷中镉含量,土壤调理剂施用量为50 kg/667 m^(2),降幅为42.4%,土壤调理剂施用量为100 kg/667 m^(2)时,降幅为56.8%,降幅效果十分明显,稻谷中有效镉含量随施用量增加而显著下降。这说明土壤调理剂可有效改善水稻经济性状,提高稻谷产量,降低土壤镉含量和可移动性以及稻谷中镉含量,进而提高经济效益。
To verify the effect of soil conditioner on reducing cadmium in rice and increasing rice yield, field experiments were carried out from July to November 2018. The results showed that application of soil conditioner could improve many economic traits, and increase the plant height, effective ear, ear length, total grain number, grain number, seed setting rate and 1000-grain weight of rice. According to the theoretical yield calculated by rice yield component traits, the yield increasing rate was 11.1% ~15.4%, and the yielding effect was remarkable. The soil conditioner could decrease the cadmium in soil in a certain degree. The cadmium in rice decreased 42.4% and 56.8% when the application rate of soil conditioner was 50 kg/667 m^(2) and 100 kg/667 m^(2), respectively. The decline was apparent, and the available cadmium content in rice decreased significantly with the increase of soil conditioner. The soil conditioner can effectively improve rice economic properties, increase rice yield, reduce cadmium content in soil and its mobility, and increase economic benefits.
作者
张兰
黑儿平
武娟
陈柏桦
ZHANG Lan;HEI Erping;WU Juan;CHEN Baihua(Cultivated Land Quality and Fertilizer Workstation of Sichuan Province,Chengdu,Sichuan 610041,China;Institute ofSoil and Fertilizer,Sichuan Academy of Agricultural Sciences,Chengdu,Sichuan 610066,China)
出处
《农业研究与应用》
2021年第1期47-52,共6页
Agricultural Research and Application
基金
国家重点研发计划项目课题(2020YFC1807703,2020YFC1807704)。
关键词
土壤调理剂
镉
土壤
水稻
修复效果
Soil conditioner
cadmium
soil
rice
remediation effect
