脱毒马铃薯稻田春季高产栽培技术研究

对脱毒马铃薯稻田春季高产栽培技术进行了正交试验，结果表明：不同栽培措施处理对产量的影响大小为种植密度＞ 多效唑喷施＞ 施肥量＞ 地膜覆盖＞ 施肥种类；产量随着种植密度和施肥量的增加而提高，喷施多效唑和地膜覆盖处理分别较对照增产８．５％ 和６．３％ ；在不同栽培处理组合中，以种植密度６０ｃｍ ×１６ｃｍ 、用地膜覆盖、施用三元复合肥、每公顷施全Ｎ１５３．０ ｋｇ、Ｐ２Ｏ５ ７２．０ｋｇ、Ｋ２Ｏ２２５．０ｋｇ、在初蕾期喷施多效唑处理组合的产量最高。

Study on the High Yield Culture Technics of Virus-free Potato in Paddy in Spring

The high yield culture technics of virus-free potato in paddy in spring were studied by perpendicular experiment,the results indicated that different cultural practices treatments were arranged as follows:planting density>applying PP- 333 >fertilization quantity>covering plastic film>fertilizer type according to their influence on potato yield;the yield of potato increased as planting density and fertilization quantity increased, applying PP- 333 and covering plastic film could increase yield by 8.5% and 6.3% respectively in comparison with the contrast;In various combinations of cultural practices treatments,the following combination obtained the highest yield:planting density being 60cm×16cm,covering plastic film,applying three-component fertilizers,applying total N 153.0kg/hm+2,P-2O-5 72.0kg/hm+2,K-2O 225.0kg/hm+2 and applying PP- 333 at early bud stage.;