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- Title
施磷对棉花磷素积累、分配、利用及产量的影响.
- Authors
张炎; 姚银坤; 胡伟; 高媛; 汤明尧
- Abstract
To study the rule of phosphorus absorption, accumulation, distribution and utilization character of the two kind of cotton cultispecies: Gossypium barbadense L. and Gossypium hirsutum L. during the main growth and development stage and reveal the utilization characteristics and P fertilizer domino effect of cotton on phosphorus nutrition.【Method】 Four different phosphate fertilizer treatments were arranged under the same rates of nitrogen and potassium in the field experiments.【Result】 The trend of the phosphorus accumulation was similar in total growth stages on two kind of cotton cultispecies. The phosphorus accumulation increased with P fertilizer application added. The phosphorus accumulation in reproductive organ was much higher than that in nutrient organ of cotton at boll opening stage. The P absorptive amount in Gossypium barbadense L. was significantly more than that in Gossypium hirsutum L.in total growth stages. P fertilizer application could increase yield because it increased the boll number of per plant. P2 treatment increased yield by 11.16% and 16% respectively comparing to P0 treatment in Gossypium hirsutum L. and Gossypium barbadense L. Phosphorus fertilizer effect equation: the recommended P2O5 of Gossypium barbadense L. was 118.6 kg/hm², and the recommended P2O5 of Gossypium hirsutum L. was 80 kg/hm². 3.7 kg and 4.21 kg P2O5 in Gossypium barbadense L. and Gossypium hirsutum L. should be absorbed respectively if 100 kg lint cotton yield was obtained.【Conclusion】 P fertilizer application can increase the absorption and accumulation of phosphorus in cotton and rational P fertilizer application can significantly increase cotton yield. The agronomic utilization, apparent utilization and partial productivity of up-land cotton were higher than those of island cotton and the absorption capacity of up-land cotton is stronger than that of Sea Island cotton.
- Publication
Xinjiang Agricultural Sciences, 2020, Vol 57, Issue 11, p2004
- ISSN
1001-4330
- Publication type
Article
- DOI
10.6048/j.issn.1001-4330.2020.11.006