论文部分内容阅读
我区的碱地棉田,除了修建深沟台田外,近几年重点推广了曹县苗庄“开沟躲碱”植棉技术,在提高出苗率及增加产量方面都有所突破:尤其在中等以下碱地及早碱棉田取得了良好的增产效果。一般能多拿三成苗,单产由以往的20—30斤皮棉提高到40—60斤水平,受到群众的欢迎。但仍存在重碱地出苗差,遇小雨死苗及成熟晚(霜前花一般仅三分之一上下)等问题。这是因为我区系滨海盐碱,与曹县的内陆盐碱有所不同造成的。如我区的地下水矿化度大,一般为5—10克/公升,为内陆盐碱地区的一倍以上,
In addition to the construction of deep-trenched terraces in recent years, the alkali-cotton fields in our district have promoted the cotton-planting technique of “ditching and caving” in Caoxian Miaozhuang in recent years, and have made breakthroughs in improving the germination rate and increasing the yield: especially in medium The following alkali and early cotton field has achieved good yield. Generally take more than three into Miao, yield increased from the previous 20-30 pounds of lint to 40-60 pounds level, welcomed by the masses. However, there are still problems such as seedling emergence in heavy alkali areas, dead seedlings in the event of light rain and late ripening (generally only about one-third of the flowers in front of the frost). This is because my area of coastal saline, Caoxian and inland saline caused by the difference. If my area of groundwater salinity, generally 5-10 grams / liter, more than double the inland saline area,