摘要
为明确添加冬季机械翻耕、机械施石灰及机械中耕开丰产沟等措施的机械化高产模式对早稻季稻田土壤及水稻的影响,以农民习惯模式为对照,分析了不同模式下早稻的产量、稻谷镉含量以及稻田土壤特性等的差异。结果显示:机械化高产模式下,稻田土壤pH值为5.82,较农民习惯模式提高了4.49%;有效磷含量9.36 mg/kg,较农民习惯模式提高了9.60%;速效钾含量162.03 mg/kg,较农民习惯模式提高了39.78%,但碱解氮含量有所下降;早稻产量为7.52 t/hm^(2),较农民习惯模式提高了6.21%;稻谷的镉含量0.082 mg/kg,较农民习惯模式降低了41.01%。因此,机械化高产模式在提升早稻产量、优化稻田土壤特性和降低稻谷镉含量方面具有一定的效果。
To explore the effects of the mechanized high-yield model,which incorporates winter mechanized deep plowing,mechanized lime application,and mechanized mid-season ridge trenching on soil characteristics,yield,and rice cadmium content in early rice fields.The yield of early rice,cadmium content of rice,and soil characteristics of paddy under different models were compared.The results showed that the pH,available phosphorus,and available potassium content of the mecha-nized high-yield model were 5.82,9.36 mg/kg,and 162.03 mg/kg,which was 4.49%,9.60%,and 39.78%higher than that in the farmer model,respectively.While alkali-hydrolysable nitrogen content decreased.The yield of early rice was 7.52 t/hm^(2),6.21%higher than that of the farmer model,and the cadmium content of rice was 0.082 mg/kg,41.01%lo-wer than that of the farmer model.These findings indicate that the mechanized high-yield model effectively improved the yield of early rice,optimizing the soil characteristics of early season rice and reducing the cadmium content of rice grain.
作者
盛永和
周昕
曾文进
黄颖洪
彭雨
陈佳娜
SHENG Yonghe;ZHOU Xin;ZENG Wenjin;HUANG Yinghong;PENG Yu;CHEN Jiana(Heshan Agricultural Machinery Affairs Center,Yiyang,Hunan 413002,China;Hunan Agricultural Machinery Affairs Center,Changsha,Hunan 410005,China;College of Agronomy,Hunan Agricultural University,Changsha,Hunan 410128,China)
出处
《作物研究》
2025年第1期1-4,67,共5页
Crop Research
基金
国家重点研发计划(2023YFD2301300)。
关键词
早稻
栽培
机械化
产量
土壤
镉
early season rice
cultivation
mechanization
yield
soil
cadmium
