论文部分内容阅读
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 ,并要注意降低生产成本的问题
From 1997 to 1999, the yield of dryland wheat under different sowing and irrigation was tested. The results showed that compared with the traditional open-field planter, the hole-sowing on the membrane had a significant yield-increasing effect, compared with the control, the seepage irrigation showed a very significant yield-increasing effect. Covering the sum of the increases in yield of the two crops, respectively, shows that there is a clear synergy between the two technologies. The economic benefits of different cultivation measures are also similar to the yield results. Through further analysis and research, the formation of dryland wheat seepage irrigation cultivation techniques. Compared with the traditional open-field sowing, the average irrigation-covering cultivation technology increased by 1 601.2 kg / hm2 and the yield increase rate reached 38.0%. In the case of water costs, the technology to increase net income of 969.6 yuan / hm2, regardless of water costs, the increase of 1,362 .0 yuan / hm2. The study further shows that the potential for wheat production in drylands is enormous and the optimization of cultivation techniques needs to be done. Attention should also be paid to the issue of reducing production costs