不同种植密度下棉花对钾素吸收、分配和利用研究

doi:10.6048/j.issn.1001-4330.2017.11.006

新疆农业科学 ›› 2017, Vol. 54 ›› Issue (11): 2006-2012.DOI: 10.6048/j.issn.1001-4330.2017.11.006

不同种植密度下棉花对钾素吸收、分配和利用研究

娄善伟¹, 王大光², 马腾飞¹, 托合提·艾买提¹, 边洋¹, 张鹏忠¹

1.国家棉花工程技术研究中心,乌鲁木齐 830091;
2.精河县农业技术推广中心,新疆精河 833300

收稿日期:2017-08-09 出版日期:2017-11-20 发布日期:2017-12-06
通信作者: 张鹏忠(1974-),男,甘肃人,副研究员,研究方向为棉花种植,(E-mail)zhangpz@163.com
作者简介:娄善伟(1982-),男,山东日照人,副研究员,研究方向为棉花栽培生理,(E-mail)wei.lou@163.com
基金资助:
自治区重点研发计划项目“棉花节本增效技术体系集成与示范应用”(2016B01001-5)

Study on K Absorption, Distribution and Utilization of Cotton under Different Planting Densities

LOU Shan-wei¹, WANG Da-guang², MA Teng-fei¹, Tuoheti Aimait¹, BIAN Yang¹, ZHANG Peng-zhong¹

1.The National Cotton Engineering & Technology Research Center, Urumqi 830091, China;
2. Jinghe County Agricultural Technology Extension Center, Jinghe Xinjiang 833300, China

Received:2017-08-09 Online:2017-11-20 Published:2017-12-06
Correspondence author: ZHANG Peng-zhong, male, native place: gansu, associate research fellow ,Mainly engaged in cotton cultivation and other research. (E-mail) zhangpz@163.com
Supported by:
The Key Technology R &D Program of Xinjiang Uygur Autonomous Region "The technical efficiency of cotton cost system integration and demonstration application "(2016B01001-5)

摘要/Abstract

摘要： 【目的】研究不同种植密度下棉株对钾素吸收、分配和利用的差异,明确钾素与棉花产量的关系。【方法】设置5(A1-A5)种不同种植密度,研究植株钾素含量及器官中钾素的分配和变化规律。【结果】钾素的吸收、利用受密度影响较大,随着密度增加,单株钾素含量逐渐减少,但在群体积累上,吐絮前A3处理含量变为最高,达到483 kg/hm²。不同器官钾素分配比例中,初花期茎叶器官钾素比占70%以上,且以茎比例最高,蕾比例最低;到吐絮时,叶片钾素比例变为最高且有随密度增加而降低的趋势,而铃的钾素含量比例中A3处理比例最高,为29.36。密度是影响产量的主要因素,随着密度增加,产量呈先增后减趋势,A3处理皮棉产量最高,为3 112.11 kg/ hm²,二者相关系数为0.979 2,但这也与吐絮时群体的钾素积累量和快速积累期A3处理值较高的趋势相一致。【结论】密度与产量二次相关,并能影响棉花对钾素的吸收、利用,但钾素也与棉花产量有关,钾素积累速率、群体钾素含量、生殖器官钾素占比等与产量相一致。

关键词: 棉花; 密度; 养分分配; 钾素

Abstract: 【Objective】 To explore the difference between cotton plant potassium absorption, distribution and utilization under different cotton planting densities and clarify the relationship between potassium and cotton yield.【Method】The experiment was conducted to study the distribution and variation of potassium content and organ potassium content in plants by setting 5 (A1-A5) different planting densities.【Result】The potassium absorption and utilization was influenced by density, with the increase of density, plant K content decreased gradually, but in group accumulation, A3 treatment's content was the highest before boll opening, reaching 483 kg/hm². Potassium distribution ratio in different organs, early flowering stem and leaf potassium K ratio accounted for more than 70%, and the highest proportion of stem, bud to boll opening, the lowest proportion; leaf potassium ratio became lower and the highest with the density increasing trend, while the bell potassium content in A3 treatment was the highest, up to 29.36. Density was the main factor affecting the yield. With the increase of density, the yield was first increased and then decreased, In A3 treatment, the highest lint yield was 3,112.11 kg/hm² and the correlation coefficient was 0.979,2, but it was also consistent with the higher trend of the group potassium accumulation at the stage of boll opening and rapid accumulation of A3 value.【Conclusion】The correlation between density and yield is two times, and it can affect the absorption and utilization of potassium, but also it is also related to cotton yield, K accumulation rate, K content in the population, potassium content in reproductive organs.

Key words: cotton; density; nutrient allocation; potassium

中图分类号:

S562

娄善伟, 王大光, 马腾飞, 托合提·艾买提, 边洋, 张鹏忠. 不同种植密度下棉花对钾素吸收、分配和利用研究[J]. 新疆农业科学, 2017, 54(11): 2006-2012.

LOU Shan-wei, WANG Da-guang, MA Teng-fei, Tuoheti Aimait, BIAN Yang, ZHANG Peng-zhong. Study on K Absorption, Distribution and Utilization of Cotton under Different Planting Densities[J]. Xinjiang Agricultural Sciences, 2017, 54(11): 2006-2012.

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不同种植密度下棉花对钾素吸收、分配和利用研究

Study on K Absorption, Distribution and Utilization of Cotton under Different Planting Densities

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