| 不同灌溉量对紫花苜蓿产量影响的对比 |
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| 引用本文： | 张国利. 不同灌溉量对紫花苜蓿产量影响的对比[J]. 草业科学, 2009, 26(10): 181-181 |
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| 作者姓名： | 张国利 |
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| 作者单位： | 白银市畜牧兽医局,甘肃,白银,730900 |
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| 摘 要： | 为了查明景泰地区紫花苜蓿Medicago sativa生育期灌溉量与产草量的关系，探索既能使紫花苜蓿高产，又能节约用水的灌溉模式，对不同灌溉条件下紫花苜蓿的鲜草产量和经济效益进行研究，确定出最适宜的灌溉量。试验结果表明,紫花苜蓿生长期，在2040 cm土层内，土壤水分含量达到30%左右时，紫花苜蓿均能良好生长，鲜草产量随灌溉量增加而增长，增产幅度也逐渐增大；但当灌溉总量达到5 400 m3/hm2时，灌溉量增加对苜蓿增产幅度影响不明显，灌溉总量4 800 m3/hm2左右时经济效益最高。
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| 关 键 词： | 灌溉 苜蓿 产量 |
Effect of different irrigation amounts on alfalfa yield |
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| ZHANG Guo-li. Effect of different irrigation amounts on alfalfa yield[J]. Pratacultural Science, 2009, 26(10): 181-181 |
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| Authors: | ZHANG Guo-li |
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| Affiliation: | ZHANG Guo-li(Animal Husb,ry , Veterinary Bureau of Baiyin City,Baiyin 730900,China) |
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| Abstract: | The fresh yield of alfalfa(Medicago sativa)and economic efficiency under different irrigation amounts were studied for exploring the water-saving and high yield irrigation patterns in Jingtai.The result indicated that the proper soil moisture within 20 to 40 cm in the growth period was 30% and the yield increased along with the increasing of irrigation amount,however,while the total irrigation amount reached 5 400 m3/hm2,the effect was not significant.The economic efficiency reached the highest while the to... |
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| Keywords: | rrigation alfalfa yield |
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