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地膜覆盖栽培技术是一项保护性的农业技术,我站自1990年起连续三年对甜菜种株进行试验,试验均采用大区生产对比法,总试验面积为8348.3m~2,覆膜与对照各占二分之一,栽植时间均为4月中旬,栽后及时覆膜。有关资料和我们的生产实践都表明,地膜覆盖栽培技术有利于提高地温,改善种株生理生化机制和土壤理化特性,提高种子产
Film mulching cultivation technology is a protective agricultural technology. Since 1990, the station has experimented on beet varieties for three years in succession. The test was conducted using the method of large area production comparison with a total test area of 8348.3 m ~ 2. One half of each control, planting time are mid-April, after planting promptly covered. Relevant data and our production practices have shown that the plastic film mulching cultivation technology is conducive to raising the ground temperature, improving physiological and biochemical mechanisms of seed and soil physical and chemical properties, improve seed production