摘要
本文通过3年长期定位试验研究了不同耕作和覆盖方式对烟草产值和土壤质量的影响。结果表明,翻耕处理烟叶产量和产值分别较免耕处理大22.72%和37.23%,轮作处理烟叶产量和产值分别较连作处理大1.83%和19.41%,秸秆还田烟叶产量和产值分别较不还田大3.55%和2.4%,说明翻耕、轮作和秸秆还田能够一定程度提高烟叶的产量和产值,特别是在轮作条件下翻耕对增加烟叶产量和产值有显著作用;另外免耕处理速效磷、碱解氮、有机质、全氮和全磷分别较翻耕处理分别大35.14%、9.92%、9.57%、4.40%和34.16%,特别是在免耕条件下,连作烟田土壤PH值、速效钾、速效磷、碱解氮、有机质、全氮、全磷和全钾较轮作烟田分别大2.01%、48.68%、73.09%、11.45%、7.71%、7.31%、47.68%和11.78%,说明免耕和连作处理提高土壤中有机质和氮、磷全量和有效量的残留,因此,从培肥地力的和烟草生产可持续的角度考虑,免耕条件下连作处理是最适宜于当地土壤地力培肥的。从提高烟叶产量和产值的角度考虑,绿肥-烟叶→绿肥/小麦/玉米→绿肥-烟叶轮作处理是最适宜该区的种植模式。
The influence of different tillage and mulching methods on tobacco yield and output value and soil quality werecarhed by 3-year long-term experiment.The results showed that the tabacoo yield and output value of turn over treatment increased by 22.72％ and 37.23％,respectively,compared with no-tillage treatment.The tabacoo yield and output value of crop rotation treatment increased by 1.83 ％and1 9.41％,respectively,compared with continuous cropping treatment.Tabacoo yield and output value of straw mulching treatment in creased by 3.55 ％ and 2.4 ％,respectively,compared with on srtaw mulching treatment.This showed that the yield and output value of tabacoo were improved under the condition of plowing,rotation and straw mulching,especially plowing and crop rotation conditions had a significant role on incresing tobacco yield and value.The content of AP,AN,OM,TN,TP on no-tillage increatment by 35.14 ％,9.92 ％,9.57 ％,4.40 ％ and 34.16 ％,respectvely,compared with turn over,especially the pH and the content of AK,AP,AN,OM,TN,TP and TK on increased by2.01％,48.68 ％,73.09 ％,11.45 ％,7.71％,7.31％,47.68 ％ and 11.78 ％ under no-tillage continuous cropping treatment,compared with no-tillage continuous rotate treatment.This showed that the content of OM,AN and AP were improved under the condition of no-tillage and continuous cropping treatment,,Therefore no-tillage conditions continuous cropping treatment was the approwiate cropping parern for the soil fertility enriching and the sustainable development of tobacco production.However,for improving the yield and output value of tobacco,the rotation patterns of green manure-tobacco-green manure/wheat/com-green manure-tobacco was the best cropping pattern.
出处
《西南农业学报》
CSCD
北大核心
2014年第1期82-86,共5页
Southwest China Journal of Agricultural Sciences
基金
优质烟叶可持续生产耕作制及养分管理研究
四川省财政基因工程烟草专项(2013YCZX-003)
