| Effects of nitrogen fertilizer and soil texture on the nitrogen utilization and yield of drip-irrigated cotton production |
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| DOI：10.7606/j.issn.1000-7601.2018.03.25 |
| Key Words: nitrogen application soil texture cotton drip-irrigatate nitrogen fertilizer use efficiency yield |
| Author Name | Affiliation | | ZHANG Ze | College of Agronomy, Shihezi University | | MA Ge-xin | Key Laboratory of Oasis Ecology Agriculture of the Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832003, China | | HAI Xing-yan | Key Laboratory of Oasis Ecology Agriculture of the Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832003, China | | MA Lu-lu | Key Laboratory of Oasis Ecology Agriculture of the Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832003, China | | ZHENG Qi | Key Laboratory of Oasis Ecology Agriculture of the Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832003, China | | ZHANG Dong-ming | Key Laboratory of Oasis Ecology Agriculture of the Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832003, China | | L Xin | College of Agronomy, Shihezi University
Key Laboratory of Oasis Ecology Agriculture of the Xinjiang Production and Construction Corps, Shihezi, Xinjiang 832003, China |
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| Abstract: |
| The objective of this field experiment was to study the effects of soil texture and nitrogen(N) fertilizer on the nitrogen utilization and yield of drip-irrigated cotton. Arandomized complete block design was appliedin the experiment. The results showed following： (1)Regardless of soil texture, the total N content of the cotton orderedas N2 (340 kg·hm-2)>N1 (240 kg·hm-2)>N3(480 kg·hm-2)>CK(unfertilized control). (2)In all soil textures, the total N content in cotton organs ordered asleaves > buds > stems before bolling and ordered as leaves >bolls > stems after bolling.Total N content in leaves, buds and stems of contton on different texture soil ordered as sand>loam>clay.(3)In the N2 treatment, there was no difference in boll number between loam and clay soil when irrigation amounts were the same. There was no significant difference in single boll mass either between sandy and clay soil in the N2 treatment or between loam and clay soil in the N3 treatment. The effects of the other treatments on single boll mass were extremely significant. Cotton yield was greatest when 256.00, 287.34, and 369.25 kg·hm-2 was applied to sand, loam, and clay soil, respectively.We suggest that these N application rates can be used for sand and loam soil. The N application rate to clay soil should be <369.25 kg·hm-2. A combination of inorganic and organic fertilizer is best in clay soil. These fertilizer recommendations will optimize fertilizer use for maximum cotton yield. |
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