摘要
采用田间小区试验研究了旱地籽瓜不同覆膜模式的土壤温度效应,结果表明,与其他覆膜模式相比,全膜覆盖垄上沟播技术特别是秋季和顶凌全膜覆盖垄上沟播技术能显著增加籽瓜生育前期土壤温度。籽瓜播种前至开花期,秋季全膜垄上沟播、顶凌全膜垄上沟播和播前全膜垄上沟播较播前半膜平铺0～20cm土壤平均温度分别增加2.8～5.4、2.4～4.5和0～2.7℃。全膜覆盖垄上沟播技术特别是秋季和顶凌全膜覆盖垄上沟播技术能显著增加籽瓜生育期总积温和平均积温,为籽瓜的增产和扩大种植区域创造了温度条件。秋季全膜垄上沟播、顶凌全膜垄上沟播和播前全膜垄上沟播籽瓜生育期总积温分别较播前半膜平铺增加527.1、454.1和258.0℃,平均积温分别较播前半膜平铺增加4.2、3.6、和2.0℃。与全膜平铺穴播和半膜平铺穴播相比,全膜覆盖垄上沟播籽瓜栽培技术具有显著的增产效果。
Field plot experiments were employed to investigate soil temperature effects of different film mulching modes about dry land seed- melon. The results showed that, compared with other mulching modes, the techniques of whole plastic-film mulching and planting in catchment furrows on ridges,especially its autumn mulching and early spring mulching could significantly increase soil temperature in seed-melon growing period. Compared with the half fiat mulching before sowing, autumn mulching, early spring mulching and sowing mulching of the techniques increased the temperature of 0-20cm soil layer by 2.8-5.4℃ ,2.4-4.5℃ and 0-2.7℃ from seed-melon sowing to anthesis ,respectively;the techniques especially its autumn mulching and early spring mulching could increase the total accumulated temperature during seed-melon growing period and average accumulated temperature remarkably which created the temperature condition to yield increasing and expanding planting area of seed-melon. Compared with half flat mulching before sowing, the total accumulated temperature during seed-melon growing period of autumn mulching, early spring mulching and sowing mulching of the techniques increased 527.1℃, 454.1℃ and 258.0℃ ,respectively ;the average accumulated temperature of them increased 4.2℃, 3.6℃ and 2.0℃, respectively. Compared with whole flat mulching and conventional half flat mulching, the techniques of whole plasticfilm mulching and planting in catchment furrows on ridges had dramatically yield increasing effects.
出处
《现代农业科技》
2010年第2期111-113,115,共4页
Modern Agricultural Science and Technology
基金
甘肃省农业科技成果转化资金项目(项目编号:5HS065-A91-001-08)
关键词
旱地籽瓜
覆膜模式
土壤温度效应
dry land seed-melon
plastic-film mulching modes
soil temperature effect
