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平衡施肥是我国90年代作物科学施肥的体现。然而关于平衡营养对棉花的效应研究甚少。本研究旨在比较不同强度的平衡营养对棉花产量、纤维和种子品质的影响。试验在防雨盆栽场地进行,每盆(φ25×h40cm)装洗净河砂20kg,平衡营养液采用Hoagland配方,缺钾处理将KNO_3和KH_PO_4改为NaNO_3和NaH_2PO_4。设5个处理①对照等量自来水;②50%:③100%:④-K100%和⑤200%。全生育期定期定量浇施,对照和处理共浇2300ml/盆。供试棉花品种中棉12号
Balanced fertilization is the embodiment of fertilization in crop science in China. However, little is known about the effect of balanced nutrition on cotton. The purpose of this study was to compare the effects of different levels of balanced nutrition on cotton yield, fiber and seed quality. The experiment was carried out in a rain-proof potted plant. 20kg of river sand was packed in each pot (φ25 × h40cm). The Hoagland balanced nutrient solution was used. KNO_3 and KH_PO_4 were changed to NaNO_3 and NaH_2PO_4 by potassium deficiency treatment. Set 5 treatments ① control equivalent amount of tap water; ② 50%: ③ 100%: ④-K100% and ⑤200%. The whole growth period regular quantitative irrigation, control and treatment of a total of 2300ml / pot. Test cotton varieties in the cotton on the 12th