浙江农业学报 ›› 2019, Vol. 31 ›› Issue (10): 1583-1590.DOI: 10.3969/j.issn.1004-1524.2019.10.02

• 作物科学 • 上一篇    下一篇

喷施硼、钼肥对滴灌紫花苜蓿生产性能及营养品质的影响

苗晓茸, 刘俊英, 张前兵*, 李菲菲, 孙艳梅, 于磊, 马春晖   

  1. 石河子大学 动物科技学院,新疆 石河子 832003
  • 收稿日期:2019-05-29 出版日期:2019-10-25 发布日期:2019-10-30
  • 通讯作者: *,张前兵,E-mail: qbz102@163.com
  • 作者简介:苗晓茸(1994—),女,陕西榆林人,硕士研究生,研究方向为牧草生产与加工。E-mail: 916497408@qq.com
  • 基金资助:
    国家自然科学基金(31660693); 中国博士后科学基金(2018T111120,2017M613252); 石河子大学青年创新人才培育计划(CXRC201605); 兵团农业技术推广专项(CZ0021); 国家牧草产业技术体系(CARS-34)

Effects of spraying boron and molybdenum fertilizers on productivity and nutritional quality of alfalfa under drip irrigation

MIAO Xiaorong, LIU Junying, ZHANG Qianbing*, LI Feifei, SUN Yanmei, YU Lei, MA Chunhui   

  1. College of Animal Science and Technology, Shihezi University, Shihezi 832003, China
  • Received:2019-05-29 Online:2019-10-25 Published:2019-10-30

摘要: 为研究喷施硼、钼肥对新疆绿洲区滴灌紫花苜蓿干草产量及营养品质的影响,共设置4种处理:施钼(Mo)、施硼(B)、硼钼配施(B+Mo)、不施肥(CK),分别测定各处理条件下紫花苜蓿的生长性状、干草产量、营养品质。结果表明:滴灌条件下,B+Mo处理的紫花苜蓿干草总产量最高,达17 186.41 kg·hm-2,但与B处理的差异不显著。株高、茎粗、叶茎比、生长速度中,与干草产量关联度最高的是株高,关联度最低的是叶茎比。B+Mo处理的粗蛋白含量比CK处理增加了13.96%~27.64%。除第3茬外,B+Mo、B处理的紫花苜蓿粗蛋白含量均显著(P<0.05)大于CK处理;除第4茬外,B+Mo处理的紫花苜蓿粗蛋白含量显著(P<0.05)大于Mo处理。B+Mo处理的酸性洗涤纤维、中性洗涤纤维含量均显著(P<0.05)低于CK处理。紫花苜蓿的总干草产量与粗蛋白含量、相对饲喂价值呈极显著(P<0.01)正相关,粗蛋白含量与相对饲喂价值呈显著(P<0.05)正相关,酸性洗涤纤维含量与中性洗涤纤维含量呈显著(P<0.05)正相关。在新疆绿洲区,硼钼配施更有利于促进滴灌条件下紫花苜蓿干草产量的形成及其营养品质的提高,若单独考虑一种元素,施硼的效果优于施钼。

关键词: 苜蓿, 钼肥, 硼肥, 营养品质

Abstract: To study the effects of spraying boron and molybdenum fertilizers on hay yield and nutritional quality of alfalfa under drip irrigation in oasis region of Xinjiang, four treatments, i.e., application of molybdenum (Mo), application of boron (B), application of boron and molybdenum (B+Mo), and without application of fertilization (CK) were established. Growth traits, hay yield, and the nutritional quality of alfalfa were studied. It was shown that the highest total hay yield of alfalfa was 17 186.41 kg·hm-2 under B+Mo. There was no significant difference on total hay yield of alfalfa between B and B+Mo. Among indexes of plant height, stem diameter, leaf-stem ratio, growth rate, the highest correlation with hay yield was found in plant height, yet the lowest correlation was found in leaf-stem ratio. The crude protein content of alfalfa under B+Mo was increased by 13.96%-27.64% than that of CK. The crude protein content of alfalfa under B+Mo and B was significantly (P<0.05) greater than that under CK except the third cut, while the crude protein content of alfalfa under B+Mo was significantly (P<0.05) greater than that under Mo except the fourth cut. The acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents of alfalfa under B+Mo were significantly (P<0.05) lower than those under CK. The total hay yield of alfalfa was significantly (P<0.01) positively correlated with crude protein content and relative feeding value. The crude protein content of alfalfa was significantly (P<0.05) positively correlated with the relative feeding value, and the ADF content of alfalfa was significantly (P<0.05) positively correlated with the NDF content. It was concluded that application of B and Mo was beneficial to promote the formation of alfalfa hay yield and to improve the nutritional quality under drip irrigation in Xinjiang oasis area, and the effect of application of B on alfalfa under drip irrigation was better than that of application of Mo.

Key words: alfalfa, molybdenum fertilizer, boron fertilizer, nutritional quality

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