| 赵尊练,史联联,阎玉让,巩振辉,吴庆强,郭建伟.克服线辣椒连作障碍的施肥方案研究[J].干旱地区农业研究,2006,(5):77~80 |
| 克服线辣椒连作障碍的施肥方案研究 |
| Effects of fertilization on continuous cropping obstacle in pepper |
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| DOI：10.7606/j.issn.1000-7601.2006.05.18 |
| 中文关键词: 线辣椒 连作障碍 施肥效应 硫酸钾 鸡粪 抗重茬剂 |
| 英文关键词:pepper continuous cropping obstacle fertilization effect K2SO4 chicken droppings NEB-26 |
| 基金项目:科技部“十五”攻关重大专项(2004BA516A09)； 陕西省科技攻关项目(2005K01-G8-03) |
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| 中文摘要: |
| 为了给通过施肥解决线辣椒连作障碍问题提供借鉴,于2005年在辣椒连作问题严重的陕西千阳县连续6 a(2000~2005年)种植线辣椒的田间,研究了施用钾肥、鸡粪、抗重茬剂对线辣椒品种“陕椒2001”叶绿素含量、叶片净光合速率、株高、叶面积指数、单株商品果数、鲜椒产量的效应。结果表明,每公顷施腐熟干鸡粪4 500 kg和3 000 kg的2个处理在减轻连作危害方面效果较好,处理后所有测定指标都显著高于对照,单株商品果数分别比对照增加6个和5.5个,鲜椒产量分别比对照提高28.2%和25.7%,并且基本上达到了关中平原灌区非连作线辣椒的产量水平;每公顷施750 kg硫酸钾的处理可以明显提高线辣椒的叶片叶绿素含量、净光合速率和叶面积指数,但对单株商品果数(平均比对照增加2.3个)和鲜椒产量(比对照提高12.5%)的效应有限;每公顷施375 kg硫酸钾的处理和每公顷施1950 mL抗重茬剂NEB-26的处理对多数测定指标的效应均不明显。 |
| 英文摘要: |
| With the purpose of resolving the problem of continuous cropping obstacle in pepper by means of fertilizing,the experiment was carried out in a field that had been continuously used to plant pepper for 6 years (2000～2005) in Qianyang County of Shaanxi Province to study the effects of potassium fertilizer,chicken droppings and NEB-26 on the chlorophyll content,net photosynthetic rate,plant height,leaf area index,fruit number per plant and yield of the variety "Shaanjiao2001".The results showed that the effects of 2 chicken droppings treatments(4 500 kg/hm2 and 3 000 kg/hm2) were significant in alleviating continuous cropping obstacle.The fruit number per plant was 6 and 5.5 more than CK respectively,and the fresh fruit yield was increased by 28.2% and 25.7% respectively.The yield of these 2 treatments was similar to that in the no continuous cropping fields.Under the treatment of 750 kg/hm2 K2SO4,the chlorophyll content,net photosynthetic rate and leaf area index were evidently increased,and the fruit number per plant and fresh fruit yield were increased by 2.3 and 12.5% respectively.However,the effects of 375 kg/hm2 K2SO4 treatment and NEB-26 treatment were not significant in most determined items. |
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