摘要
1997年～ 1 999年对旱地小麦在不同播种方式与渗灌条件下的产量形成进行了试验研究。结果表明 ,膜上穴播较传统的露地条播具有显著的增产效果 ,与对照相比渗灌则表现出极显著的增产效应 ,与露地条播相比 ,渗灌加覆盖的增产幅度明显大于渗灌与覆盖分别较露地条播的增产幅度之和 ,说明了两项技术之间存在明显的协同效应。不同栽培措施在经济效益上的反应也与产量结果相似。通过进一步的分析研究 ,形成了旱地小麦渗灌覆盖栽培技术。与传统的露地条播相比 ,渗灌覆盖栽培技术平均增产 1 60 1 .2 kg/ hm2 ,增产率达38.0 %。在计水成本的情况下 ,本项技术提高纯收益 969.6元 / hm2 ,在不计水成本的情况下 ,则提高 1 362 .0元 / hm2。研究还进一步表明 ,旱地小麦生产潜力巨大 ,需做好栽培技术的优化工作 。
Yield formation trials of different sowing patterns and underground irrigation for dryland wheat were carried out in 1997～1999 at Fushan County, Shanxi Province. Results showed that film punctured sowing pattern and underground irrigation have significant yield increasing effects compared with the conventional sowing pattern and the non irrigated treatment respectively. Compared with the conventional sowing pattern, the yield increasing effect of the integrated technique underground irrigation plus film mulching is obviously greater than the addition of yield increasing effects of underground irrigation and film punctured sowing pattern, which demonstrates a synergetic effect between the two techniques. The trend of economic benefits is similar to the one for the yield status. The integrated cultivation technique of underground irrigation plus film punctured sowing pattern has thus been formed. Compared with the conventional planting technique, the integrated technique has a yield increase of 1 601.2 kg/hm 2 or 38.0%, and the net economic gain is RMB 969.6 yuan/hm 2 exclusive of water cost or RMB 1 362.0 yuan /hm 2 inclusive of water cost. The result also showed that there exists an enormous yield potential for dryland wheat, which justifies the optimization of cultivation techniques and dwindling of the production cost.
出处
《干旱地区农业研究》
CSCD
北大核心
2000年第2期7-12,共6页
Agricultural Research in the Arid Areas
基金
山西省科技攻关项目"不同类型区旱地农业生态工程体系及持续发展模式研究"!(编号 :963136)
关键词
旱地小麦
膜上穴播
露地条播
渗灌覆盖栽培技术
dryland wheat
underground irrigation
film punched seeding and film mulching
cultivation technique
