摘要
土地整理导致土壤肥力及生产力降低,施用有机肥是培肥土壤的有效措施,然而不同类型有机肥对土壤培肥效果存在差异。本文通过田间试验研究了不同有机肥处理烤烟生长发育、生物量、养分吸收及烤烟收获后土壤养分状况,结果表明:对比不施肥(T1),菜枯饼肥+化肥(T3)、紫云英+化肥(T5)在第20 d的烤烟株高分别显著(P<0.05)高19.73%和21.77%,在30 d的叶片数均显著(P<0.05)多14.55%;油菜秸秆+化肥(T4)在第30和60 d的叶片数显著(P<0.05)多18.18%和24.16%,株高分别显著(P<0.05)高19.73%和55.12%。油菜秸秆和紫云英对烟叶和生物产量有显著(P<0.05)增产作用,油菜秸秆对烤烟秸秆具有减产的作用。三种有机肥均能促进烟叶吸P,茎杆吸P和K;油菜秸秆能促进烟叶吸N,显著(P<0.05)提高土壤速效磷和碱解氮含量;紫云英能促进烟叶吸N、K;菜枯饼肥能显著(P<0.05)提高土壤碱解氮含量。表明油菜秸秆较菜枯饼肥和紫云英更有利于促进烤烟生长发育,提烤烟的产量,改良土壤性状。
Land consolidation reduces soil fertility and productivity.Application of organic fertilizersis an effective was to increase soil fertility.However, there is discrepancy in effect of different organic fertilizerson soil fertility. In this paper, a field experiment was designed to determine effects of different organic fertilizers on tobacco's growth,biological yield and nutrient absorbing amount as well as soil nutrient features after tobacco collected, which could provide references for soil fertility improvement of tobacco field after land consolidation. The results showed that the plant height on the 20 th day under the treatment of cake- shaped vegetables dreg + chemical fertilizer(T3) and milk vetch + chemical fertilizer(T5) was 19.73% and 21.77%, higher(P < 0.05), respectively,compared with no fertilizer(T1), and both treatment had 14.55% higher(P < 0.05) tobacco leaf amount. Tobacco leaf amount of the treatment of rape straw+ chemical fertilizer(T4) was 18.18% and 24.16% higher(P < 0.05), respectively,on the 30 th and 60 th day compared with T1, and the plant height was 19.73% and 55.12% higher, respectively. Rape straw and milk vetch significantly(P < 0.05) increased the tobacco leaf and biological yield, and rape straw decreased that of tobacco straw;three type of organic fertilizers promoted the tobacco leaf absorbing P and haulm absorbing P & K; rape straw promoted the tobacco leaf absorbing N and significantly(P < 0.05) increased the content of soil available P & N; milk vetch promoted the tobacco leaf absorbing N & K; cake- shaped vegetables dreg significantly(P < 0.05) increased soil N content. Rape straw was better than cake- shaped vegetables dreg and milk vetch to promote the growth of tobacco,increase tobacco yield and improve soil quality.
出处
《土壤通报》
CAS
CSCD
北大核心
2015年第6期1466-1471,共6页
Chinese Journal of Soil Science
基金
湖南省烟草公司2014年度重点科技项目"湖南连作和新垦植烟土壤质量提升机理研究及技术应用"(14-16ZDAa01)
湖南省烟草公司
邵阳市公司资助项目"丘陵山区新垦烟田土壤快速培肥与烤烟优质关键技术研究"(12143)
2015年度湖南省教育厅重点项目"土地整理后水稻土团聚体特征及其对施肥的响应"联合资助
关键词
有机肥
土地整理
烟田
培肥
Organic fertilizer
Land consolidation
Tobacco field
Soil building
