本文選題：文山 + 植煙土壤　； 參考：《土壤》2017年04期

【摘要】：為探明文山煙區(qū)植煙土壤有效鋅分布情況及其影響因素,并為烤煙合理施用鋅肥提供理論依據(jù),運(yùn)用GPS定位技術(shù)采集了276份土樣,測定其有效鋅含量,采用經(jīng)典統(tǒng)計(jì)學(xué)方法和GIS技術(shù),對其基本特征、空間分布狀況及影響因素進(jìn)行了分析。結(jié)果表明:(1)文山煙區(qū)植煙土壤有效鋅平均含量為1.93 mg/kg,變幅為0.20~8.17 mg/kg,變異系數(shù)為70.47%,屬于中等變異強(qiáng)度。全煙區(qū)有70.12%的區(qū)域土壤有效鋅在適宜范圍內(nèi)(1.00~5.00 mg/kg)。(2)縣域間植煙土壤有效鋅平均含量從高到低排序?yàn)?麻栗坡西疇縣文山縣馬關(guān)縣硯山縣丘北縣廣南縣。(3)土壤中有效鋅含量隨著有機(jī)質(zhì)增加而增大,隨海拔升高呈拋物線變化;不同海拔組和有機(jī)質(zhì)組間有效鋅含量差異均達(dá)極顯著水平。有效鋅含量在土壤p H為6.5~7.5時最低,在偏酸和偏堿的環(huán)境中含量較高。(4)文山煙區(qū)分布最廣的是紅壤,其次是黃壤。不同土壤類型有效鋅含量差異達(dá)極顯著水平,含量最高的是水稻土,最低的是紫色土。因此,文山煙區(qū)植煙土壤有效鋅含量總體滿足優(yōu)質(zhì)煙葉生產(chǎn)的需求,部分缺鋅區(qū)域應(yīng)加強(qiáng)鋅肥、有機(jī)肥的施用以提高土壤中有效鋅含量。
[Abstract]:In order to explore the distribution of effective zinc and its influencing factors in tobacco planting soil in Wenshan, and to provide theoretical basis for rational application of zinc fertilizer to flue-cured tobacco, 276 samples of soil samples were collected by GPS positioning technology and the content of effective zinc was measured. The basic characteristics, spatial distribution and influencing factors were analyzed by using the classical statistical method and GIS technology. The results were as follows: (1) the average content of effective zinc in tobacco planting soil in Wenshan tobacco area was 1.93 mg/kg, the variation was 0.20~8.17 mg/kg, the coefficient of variation was 70.47%, which was of moderate variation. 70.12% of the soil available zinc in the whole tobacco area was in the suitable range (1.00~5.00 mg/kg). (2) the average content of effective zinc in soil cultivated in the county area was from high to low ranking as: Chestnut The content of effective zinc in soil increased with the increase of organic matter in Guangnan County, qiuoshan County, Wenshan County, Poe County, Poe Xichou county. (3) the content of effective zinc in different elevations and organic matter groups reached a very significant level. The content of effective zinc was the lowest when p H was 6.5~7.5 in soil soil, and it was in the ring of partial acid and alkali. 4. (4) the most widely distributed tobacco area is red soil, followed by yellow soil. The difference of effective zinc content of different soil types is very significant, the highest content is paddy soil, the lowest is purple soil. Therefore, the effective zinc content in tobacco planting soil in Wenshan is in general meet the demand of high quality tobacco production, some zinc deficiency areas should strengthen zinc Fertilizer and organic fertilizer were applied to improve the content of available zinc in soil.

【作者單位】： 湖南農(nóng)業(yè)大學(xué)煙草研究院湖南農(nóng)業(yè)大學(xué)生物科學(xué)技術(shù)學(xué)院;廣西中煙工業(yè)有限責(zé)任公司;
【基金】：云南省煙草公司項(xiàng)目(2011YN73)資助
【分類號】：S158;S572

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