CAJ | 학술논문

模拟研究了降尘对温室棉花营养特性的影响，旨在确定降尘对棉花的营养作用，为降尘区棉花合理施肥及管理提供依据。结果表明：初蕾期—铃期，受到降尘影响的棉花植株氮素含量均高于不受降尘影响时，而在吐絮期，受到0.5倍自然降尘量影响时棉花植株氮素含量达到最大值。在各个生育期受降尘影响的棉花植株磷素含量均高于不受降尘影响，其中在初蕾期—铃期，受到0.5倍降尘影响时棉花植株磷素含量达到最大值；而在吐絮期则表现为受到2倍降尘量影响时达到最大值。在各个生育期，受到降尘影响时棉花植株钾素含量均下降，说明降尘影响棉花的品质，并且对各生育期的影响效果不同。因此，在初蕾期、盛蕾期、花期和铃期可以根据降尘中氮素的含量相应地减少氮肥施用量，而在吐絮期应适量增加氮肥施用量；棉花磷肥的施用可以根据降尘中磷素的含量而适量减少，达到节肥增产的目的；钾素含量的下降直接影响棉花的纤维品质，在塔里木盆地棉区种植棉花一定要注重合理施用钾肥。
모의연구료강진대온실면화영양특성적영향，지재학정강진대면화적영양작용，위강진구면화합리시비급관리제공의거。결과표명：초뢰기—령기，수도강진영향적면화식주담소함량균고우불수강진영향시，이재토서기，수도0.5배자연강진량영향시면화식주담소함량체도최대치。재각개생육기수강진영향적면화식주린소함량균고우불수강진영향，기중재초뢰기—령기，수도0.5배강진영향시면화식주린소함량체도최대치；이재토서기칙표현위수도2배강진량영향시체도최대치。재각개생육기，수도강진영향시면화식주갑소함량균하강，설명강진영향면화적품질，병차대각생육기적영향효과불동。인차，재초뢰기、성뢰기、화기화령기가이근거강진중담소적함량상응지감소담비시용량，이재토서기응괄량증가담비시용량；면화린비적시용가이근거강진중린소적함량이괄량감소，체도절비증산적목적；갑소함량적하강직접영향면화적섬유품질，재탑리목분지면구충식면화일정요주중합리시용갑비。
Simulation study on the influence of dust fall on cotton nutrition properties in greenhouse was done,aiming to determine the nutritional effect of dust fall on cotton, and provide the basis for cotton rational fertilization and management in dust fall zone. The results showed that:the nitrogen content of cotton in the early bud stage to boll stage by the dust effect was higher than that without dust effect,while in the cotton boll opening stage, its nitrogen content reached the maximum by 0. 5 times the natural dustfall effect. The phosphorus content of cotton at different growth stages suffering the dust effect was higher than that not suffering the dust effect, from the early bud stage to the boll stage the cotton phosphorus content reached the maximum by 0. 5 times natural dustfall influence,and in the boll opening stage it reached the maximum under 2 times the amount of natural dustfall effect. The potassium content of cotton decreased by the dustfall effect in different growth periods. The results above indicated that dust fall affected the cotton quality,and the effect in different growth period was different. In the early bud stage, bud stage, flowering stage, and ball stage the nitrogen fertilizer application amount could be reduced correspondingly according to the nitrogen content in the dust,but in the boll opening stage,the nitrogen fertilizer application amount should be increased. Cotton P fertilization amount should be reduced appropriately according to the content of phosphorus in the dust, achieving the purpose of saving fertilizer and increasing yield. The decline of K content directly affected the quality of cotton fiber and rational application of K fertilizer must be noticed in cotton areas of the Tarim Basin.