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| 钾对番茄早疫病的防治效果及机理研究 | |
| 引用本文： | 黄绍敏,徐本生,谭金芳,赵月萍,王吉庆,乔建礼. 钾对番茄早疫病的防治效果及机理研究[J]. 河南农业大学学报, 1999, 33(2): 138-142 |
| 作者姓名： | 黄绍敏 徐本生 谭金芳 赵月萍 王吉庆 乔建礼 |
| 作者单位： | 1. 河南省农科院土壤肥料研究所,河南,郑州,450002 2. 河南农业大学,河南,郑州,450002 3. 南阳市农科所,河南,南阳,473068 |
| 基金项目： | 河南省科委攻关项目!950303040 |
| 摘 要： | 采用盆栽试验了钾对番茄早疫病病情指数和发病率的影响，并从茎结构方面探讨了施钾番茄抗早疫病的原因。结果表明：施钾能提高番茄抗病性，使番茄的病情指数和发病率分别降低１５．３％－３２．０％和１２％－２２％。 |
| 关 键 词： | 施钾 番茄早疫病 病情指数 发病率 茎组织结构 |
Study on effect and mechanism of applying potassium fertilizer on the prevention and control of tomato early blight |
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| HUANG Shao - min,XU Ben - sheng,TAN Jin - fang,et al. Study on effect and mechanism of applying potassium fertilizer on the prevention and control of tomato early blight[J]. Journal of Henan Agricultural University, 1999, 33(2): 138-142 | |
| Authors: | HUANG Shao - min XU Ben - sheng TAN Jin - fang et al |
| Abstract: | By basin planting-studies were dried out on the effect of applying K fenither on disease index and susceptible rate of tomato early blight and on the reasons for applying potissum to arse the disease resistance.ffe results indicated that applying K fertilizer could decrease the disease index by 15. 3 ~ 32.0% percent and susceptible rate by 12% ~ 22% percent. The deckness of surface layer,thick angle tissue and vassular tissue were raised and the invasion and growth of Alternaria solani were hindered after applying K fertiliaer,therefore the breaking - out time of the disease were delayed 3 - 4d. Thus, the incidence of tomato early blight dropped. |
| Keywords: | application of K fertilizer tomato early blight disease index susceptible rate structure of stem |
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