冀东盐碱地棉花改土培肥研究

Soil Improvement and Fertility for Cotton in the Saline-Alkali Soil of Eastern Hebei Province

针对盐碱地植棉保苗难、前期生长迟缓后期生长迅速且晚熟的现状,研究不同改土培肥方法对盐碱地棉花生长发育的影响,实现棉花高产稳产。结果表明:不同改土培肥方法对棉花生长发育影响差异较大,推荐施肥量为复合肥262.5 kg/hm2;分析棉花品种的主要经济性状,品种S17适宜在冀东盐碱地种植。

In view of the present situation of difficulties for ensure a full stand and stunting of growth in the former period and excess growth in the later period of cotton cultivation in saline-alkali soil, to achieve high and stable yield of cotton, the influence on growth and development of the different soil improvement and fertility for cotton in saline-alkali soil was study. The results showed that there were significant differences in the influence on growth and development of the different soil improvement and fertility for cotton, compound fertilizer （262.5 kg/hm2 ） as recommended fertilization; the main economic characters of cotton were analyzed, the variety S17 fit to plant in the saline-alkali soil of eastern Hebei Province.