强化保温育苗模拟试验结果及分析

试验采用模拟的形式利用水的大热容量和强的流体特性以及取材容易、成本极低的特点,对早春育苗实行强化保温。目的是大幅度提早播种期,使当地的生育期延长２０～３０ｄ。提高当地稻作产量２０％左右,使绝大多数稻作区的水稻公顷产量稳定在１００００ｋｇ以上。 初步试验结果显示强化保温育苗法效果较正常旱育苗提早１５ｄ（４０月１３日）,播种处理已突破育苗期－５～－６℃的低温关,较普通旱育苗法提早出苗１０～１５ｄ。插秧前取样调查结果表明,叶龄进程、分蘖发生及鲜重等都显示出极强的优势,证明了这一方法的有效性,已达初步的试验的目的。

The Result and Analysis of the simulation of seedling by strengthen remaining temperature

A well kown fact that many excellent rice varieties can't be planted owing to the restrict of short growth period and the rice yield can't be raised largely in cold rice region. This ex- periment carried out strengthen remaining temperture to seedling in earlyspring throgh simu- lant mode, utilizing the character of water with large hot-capacity, floating, getting easily, low costs. The Ultimate intention of experiment was early-sowing, prolonging 20-30 days growth period, raising 20% yield, stabilizing yield to more than 10000 kg/hm~2 in most rice region. The primary result showed that the effect was very ideal. The management of sowing in 3. April broken throgh the verge of low temperture-5～-6℃. It was 10-15days earlier than normal-seeding. researching results Before trans planting were as follows: fast-leaf age, rapid-tiller, large-fresh weight. It proved that this method was effective and arrived already to its intention. We hope that the ultimate result can tum to new page in rice cultivation.