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yan jian di zhi mian cuo shi
Author(s): 
Pages: 26
Year: Issue:  2
Journal: Reclaiming and Rice Cultivation

Keyword:  盐碱地植棉地膜覆盖硫酸钾合理密植次生盐渍化生长发育田间小气候棉花品种营养钵育苗;
Abstract: 马西地区位于聊城西部,属黄河冲击平原,地下水深20-50米,总盐量为0.34%,土壤含盐04%一0.6%,PH值7.5-8.5,土质为沙土或沙壤土,次生盐渍化严重。在这一地区种植棉花,必须采取防盐碱措施。1选择耐盐品种:棉花品种之间抗盐碱能力有所不同,各地都有自己的抗盐品种。根据本地的自然条件,选用山农86-4为宜。2营养钵育苗:选择非盐碱肥沃耕层土壤和腐熟的牲畜粪按1:1混合,再分别加入03%的尿素、磷酸二坡和硫酸钾,充分混匀,调至一定湿度,做成营养钵。营养钵既为棉花幼苗提供了营养,又避免了种子发芽时盐碱的危害。3平整土地:先刮去一层厚2-3cm的表土盐结皮层,以移去积盐最多的部分,再整平土
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