| 大棚西瓜连作的土壤养分和盐分的动态变化初探 |
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| 引用本文： | 陆利民,严志衡,姚春霞,邱琴,陆建忠,徐益章. 大棚西瓜连作的土壤养分和盐分的动态变化初探[J]. 上海农业学报, 2006, 22(1): 113-115 |
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| 作者姓名： | 陆利民 严志衡 姚春霞 邱琴 陆建忠 徐益章 |
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| 作者单位： | 上海市浦东新区农业技术推广中心,上海,201201;华东师范大学地理信息科学系教育部重点实验室,上海,200062 |
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| 摘 要： | 通过2年4茬设施栽培条件下的西瓜肥料试验,研究了土壤养分、盐分的动态变化趋势,分析了西瓜生长阶段中土壤速效态N、P、K的供应强度和西瓜植株吸收浓度的相关性,以及土壤盐分周期走向与施肥、灌溉的关系,提出了苗期避免盐分积累是西瓜种植成败的关键,及苗期盐分的临界指标。
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| 关 键 词： | 西瓜 设施栽培 土壤 养分 盐分 |
| 文章编号： | 1000-3924（2006）01-113-03 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2005-09-062006-02-06 |
Study on the nutrient contents and salinity dynamics of worked soil of continuous watermelon culture under plastic tunnels |
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| LU Li-min,YAN Zhi-heng,YAO Chun-xia,QIU Qin,LU Jian-zhong,XU Yi-zhang. Study on the nutrient contents and salinity dynamics of worked soil of continuous watermelon culture under plastic tunnels[J]. Acta Agriculturae Shanghai, 2006, 22(1): 113-115 |
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| Authors: | LU Li-min YAN Zhi-heng YAO Chun-xia QIU Qin LU Jian-zhong XU Yi-zhang |
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| Affiliation: | 1. Pudong New District Agro-technology Extension Center, Shanghai 201201, China; 2.Key Geo-information Science Lab of the Educational Ministry, East China Normal University, Shanghai 200062, China |
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| Abstract: | The experiments of two-year two-crop watermelon culture were carried out under plastic tunnels and different fertilization rates during 2003- 2004. The yearly trends of soil nutrients and salinity dynamics were studied, and the correlation between the intensity of readily available N, P and K supplies and the absorbed concentration of watermelon plants was analysed. The periodic change of soil salinity with fertilization and irrigation was also discussed. The investigation showed that success or failure in planting watermelon hinged on avoiding salt accumulation at seeding stage of watermelon. The critical salinity of worked soil at the seedling stage of watermelon was also put forward. |
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| Keywords: | Watermelon Protected culture Soil Nutrient Salinity |
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