论文部分内容阅读
实践证明,培育冬麦壮苗是保证冬麦安全越冬、实现小麦高产的重要措施。壮苗标准是,越冬前有次生根6～7条,主茎叶片5～6个,苗龄55天左右,大蘖2～4个。为广达到这个标准,除了抓好播种、管理一般措施外,还需要特别注意以下几个方面。1.确定适宜的播种期。冬麦在冬前停止生长前,必须有500～530℃的积温,才能形成壮苗。为了保证这一积温量,在海城地区适宜的播种期为9月15～25日之间。据东四公社推广站冬前调查,9月25日播种的,麦
Practice has proved that fostering winter wheat seedling is winter winter wheat to ensure safe, important measures to achieve high yield of wheat. Strong seedling standard is before the winter there are 6 to 7 secondary roots, the main stem leaves 5 to 6, seedling age of about 55 days, 2 to 4 large tiller. In order to achieve this goal, in addition to doing a good job of sowing and managing general measures, special attention should be paid to the following aspects. 1. Determine the appropriate sowing date. Winter wheat before stopping growth before winter, must have accumulated temperature of 500 ~ 530 ℃, in order to form strong seedlings. In order to ensure the accumulated temperature, the suitable seeding period in Haicheng area is between September 15 and September 25. According to the East Fourth Commune Extension Station winter survey, seeding September 25, wheat