CAJ | 학술논문

[目的] 调查浙江省标准农田土壤酸碱度的现状,提出相应的改良措施.[方法] 以浙江省83个县市区的标准农田为取样点,参照NY/T 1121.1对土壤样品进行采集、处理和贮存,采用蒸馏水浸提玻璃电极法测定土壤pH值,对全省不同类型、不同区域的标准农田pH值进行比较.[结果] 标准农田土壤和水稻土pH值各级所占百分比呈现中间降低两头上升的趋势,且酸性土壤所占比例上升幅度大于碱性土壤.土壤pH值≤5.5的农田比例较第2次土壤普查结果增加了20.71%,土壤pH值≤4.5的农田较第2次土壤普查结果增加了1.71%.不同地貌类型区的标准农田pH值存在明显差异,其次序为:滨海平原＞水网平原＞河谷平原＞丘陵地区.[结论] 应采取施用石灰,增施有机肥,推广测土配方施肥等措施从根本上防止浙江省耕地土壤酸化现象.
[목적] 조사절강성표준농전토양산감도적현상,제출상응적개량조시.[방법] 이절강성83개현시구적표준농전위취양점,삼조NY/T 1121.1대토양양품진행채집、처리화저존,채용증류수침제파리전겁법측정토양pH치,대전성불동류형、불동구역적표준농전pH치진행비교.[결과] 표준농전토양화수도토pH치각급소점백분비정현중간강저량두상승적추세,차산성토양소점비례상승폭도대우감성토양.토양pH치≤5.5적농전비례교제2차토양보사결과증가료20.71%,토양pH치≤4.5적농전교제2차토양보사결과증가료1.71%.불동지모류형구적표준농전pH치존재명현차이,기차서위:빈해평원＞수망평원＞하곡평원＞구릉지구.[결론] 응채취시용석회,증시유궤비,추엄측토배방시비등조시종근본상방지절강성경지토양산화현상.
[Objective] The aim was to investigate the status of soil pH values of standardized farmlands in Zhejiang province and put forward the corresponding improvement measures. [Method] With the standardized farmlands of 83 counties in Zhejiang province as sampling points, the soil samples were conducted for collection, processing and storage according to referenced to NY/T 1121.1 and soil pH values were measured by using distilled water extraction and glass electrode. The pH values of standardized farmland of different types in different regions were compared. [Result] The percentage which soil pH values of standardized farmlands and paddy at all levels accounted presented a trend of reducing at the middle and rising at two ends, and the rising amplitude of the proportion of acid soils was more than that of alkaline soils. Compared with the structure of 2nd general soil survey,the ratio of farmlands with soil pH values of or lower than 5.5 was increased by 20.71%, and that with soil pH of or lower than 4.5 of farmlands was increased by 1.71%. There were obvious differences of the pH value of standardized farmland in different geomorphologic types and the order was as follows: coastal plain > water net plain > valley plain > hilly area. [Conclusion] Measures such as liming, increasing organic fertilizer and extending soil testing and fertilizer recommendation should be taken to prevent the phenomenon of soil acidification of farmland in Zhejiang Province fundamentally.