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作 者:杨苏龙[1] 石跃进[1] 史俊东[1] 李长青 齐宏立[1] 马纪农[1] 赵俊侠[1] 耿金萍[1] 张旭东[1]
机构地区:[1]山西省农科院棉花研究所,山西运城044000 [2]山西省运城农学院,山西运城044000
出 处:《干旱地区农业研究》2003年第4期88-90,112,共4页Agricultural Research in the Arid Areas
摘 要:于1998~2000年设置了天然降雨下渗与径流模拟试验,以比较本田集雨、全覆盖集雨、旱井集雨等集雨方式的效果。试验表明,本田集雨仅能收集降雨量的2.3%~5.9%,所以只能作为集雨的辅助措施,而场院、道路、山坡或全覆盖条件下能收集降雨量的50%以上。利用地头旱井收集径流雨水,在小麦和玉米生育期使用现代化滴喷灌技术补灌,不仅可以显著增加作物产量,而且可以提高复种指数。据1998年试验,小麦、玉米每666.7m2总产达733.3kg,比对照增产38.2%;1999年试验,小麦、玉米总产达440.7kg;2000年,总产432.7kg,增产67.5%。Simulating experiments were conducted during 1998~2000 to discover the effects of different waterharvesting methods. The results showed that only 2.1%~7.3% of rainfall could be gathered in the field, but more than 50% on the ground, road, slope or land with plastic shelter. Under the condition of supplementary irrigation during the growing period of wheat and corn with collected rainwater, the yield of crops could be increased remarkably and the planting index could be raised. According to the test in 1998, the total output of wheat and corn came to 733.3 kg/666.7m2, and the increase rate was 38.2%. According to the test in 1999, the total output of wheat and corn came to 440.7 kg/666.7m2, and was increased by 3.5 times. According to the test in 2000, the total output of wheat and corn came to 432.7 kg/666.7 m2, increase rate was 67.5%.
关 键 词:旱塬地 集雨节水灌溉 作物产量 旱井 覆盖面集雨 本田集雨
分 类 号:S275.2[农业科学—农业水土工程]
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