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1983—1984年,在田间及盆栽条件下,进行棉花硼、钾营养及其相互关系的研究,结果表明:硼与钾均呈显著影响棉花产量,且硼、钾间存在相互效应。严重缺硼时,钾与产量呈负相关,高硼时,钾与产量呈正相关;缺硼与高硼均使棉花产生明显的外部症状,且缺硼症状随施钾量的增加而加重,硼中毒症状则随钾量的增加而减轻;叶片含硼量随土壤施硼量的增加而增加,随土壤施钾量的增加而减少;单株叶片吸硼量同样随硼的增加而增加,但与钾的关系则与不同硼水平有关,缺硼时,钾抑制硼的吸收,正常硼及高硼时,中量钾促进硼的吸收,高钾又抑制硼的吸收。叶片含钾量不受土壤施硼量的影响,但缺硼及高硼均使单株叶片吸钾量降低,缺硼严重影响花粉粒的形态及叶柄组织的解剖结构,且缺硼叶柄细胞中存在大量淀积物,高硼及缺钾均不影响解剖学结构,也未发现硼、钾相互关系对它们的影响。
The results showed that both boron and potassium had a significant effect on cotton yield, and there was interaction between boron and potassium in 1983-1984 under field and potted conditions. In severe boron deficiency, potassium was negatively correlated with the yield. When boron was high, potassium was positively correlated with yield. Both boron deficiency and high boron had obvious external symptoms, and boron deficiency increased with the increase of potassium supply. Boron The symptoms of poisoning were reduced with the increase of potassium content. The content of boron in leaves increased with the increase of boron application, but decreased with the increase of potassium application. The boron absorption of leaves increased with the increase of boron, The relationship between potassium and different boron levels, boron deficiency, potassium inhibition of boron absorption, normal boron and high boron, the amount of potassium to promote the absorption of boron, high potassium and inhibit the absorption of boron. Leaf potassium content is not affected by the amount of boron applied to the soil, but the boron deficiency and high boron all reduced the potassium uptake per plant leaf. Boron deficiency seriously affected the morphology of pollen grains and the anatomy of petiole. There are a large number of deposits, high boron and potassium deficiency did not affect the anatomy, nor found the relationship between boron and potassium on their impact.