黄骅市旱碱地春玉米高产栽培技术

• 作 者: 潘宝军
• 机 构: 黄骅市农业局技术站,
• 出 处: 河北农业
• 发表日期: 2015年09期
• 关键词: 玉米高产栽培 黑龙港流域 土壤分类 土壤含盐量 春玉米 大喇叭口期 土壤盐分含量 地力条件 浅层 播种密度

黄骅市位于黑龙港流域的最东端,地势低洼平坦,属于典型的滨海旱碱区。常年平均降水量为547毫米,年内降水不均,大部分集中夏季,春季仅占9.6%。浅层淡水严重匮乏,水资源人均占有不足80立方米。土壤肥力低,土壤有机质含量平均为0.95%,按全国土壤分类为4—5级。全市旱碱地面积65万亩,占耕地面积的80%以上,土壤含盐量一般在0.2—0.6‰,p H值0.75—0.82。

Huanghua is located in the most eastern end of the Heilongjiang River Basin, low-lying low-lying, is a typical coastal arid zone. The average annual precipitation is 547 mm, with uneven precipitation during the year, most of which are concentrated in summer and only 9.6% in spring. A serious shortage of shallow fresh water, water resources per capita less than 80 cubic meters. Soil fertility is low, the average content of soil organic matter is 0.95%, according to the national soil classification for the 4-5 level. The city’s auric alkali area 650000 mus, accounting for more than 80% of arable land, soil salinity is generally 0.2-0.6 ‰, p H value of 0.75-0.82.