| Effect of nitrogen fertilizer on cotton bud and boll reduction and yield under non sufficient drop irrigation |
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| DOI：10.7606/j.issn.1000-7601.2018.02.13 |
| Key Words: irrigation amount nitrogen fertilizer cotton yield |
| Author Name | Affiliation | | DOU Hai-tao | College of Agronomy, Xinjiang Agricultural University/Cotton Engineering Research Center, Ministry of Education, Urumqi, Xinjiang 830052, China | | SHI Hong-liang | College of Agronomy, Xinjiang Agricultural University/Cotton Engineering Research Center, Ministry of Education, Urumqi, Xinjiang 830052, China | | LI Chun-yan | College of Agronomy, Xinjiang Agricultural University/Cotton Engineering Research Center, Ministry of Education, Urumqi, Xinjiang 830052, China | | XIANG Qin | College of Agronomy, Xinjiang Agricultural University/Cotton Engineering Research Center, Ministry of Education, Urumqi, Xinjiang 830052, China | | ZHANG Ju-song | College of Agronomy, Xinjiang Agricultural University/Cotton Engineering Research Center, Ministry of Education, Urumqi, Xinjiang 830052, China |
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| Abstract: |
| The effects of nitrogen fertilizer on growth and development of cotton under non-sufficient irrigation under film condition were studied, and the effects of nitrogen fertilizer on yield components of cotton under different irrigation were studied to provide basis for developing water-saving, high-yield and high-efficiency agriculture in arid area. The effects of irrigation and nitrogen application on cotton agronomic traits and yield formation were studied under the condition of southern Xinjiang. The results showed that 2 800 m3·hm-2 had the highest growth rate of bud growth rate, boll growth rate and yield increment, compared with the treatments of 3 800 m3·hm-2 of irrigation rate. Compared with the different nitrogen application rates,the general trend was N2＞N3＞N1＞N0. The effect of irrigation and nitrogen application on cotton dry matter formation and its allocation was significant. When the irrigation amount was 2 800 m3·hm-2 and the irrigation volume was 3 800 m3·hm-2, and the cotton yield could be more utilized. Combine irrigation with irrigation controllable characteristics, to develop the appropriate irrigation and fertilization system, to achieve high water-saving cotton field is of great significance. |
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