内蒙古临河地区甜菜优化栽培措施的综合研究

本试验研究了内蒙古临河地区甜菜生产中３项主要农艺措施对甜菜经济性状的影响及数量关系。其结果表明：密度是影响块根产量的关键因素，其次是追肥，最后是种肥；３因子对块根含糖率的影响依次是种肥＞密度＞追肥；若从单位面积的甜菜产糖量来看，３因子的贡献率依次是追肥＞密度＞种肥。另外，在全面分析各农艺措施的主效应及互作效应的基础上，确立了临河地区甜菜产糖量８２５０ｋｇ／ｈｍ２以上的优化栽培措施，其密度为９１５００～９６０００株／ｈｍ２，种肥Ｎ３８．５５～５４．３ｋｇ＋Ｐ２Ｏ５３２．８～１３８．７５ｋｇ／ｈｍ２，追肥Ｎ１２４．６５～１５８．２５ｋｇ＋Ｐ２Ｏ５４１．５５～５２．９ｋｇ／ｈｍ２。

A Comprehensive Study on Superior Cultivation of Sugarbeet in Linhe,Inner Mongolia

The influences of three important agronomic factors on sugarbeet eco-nomic characters,and the quantitative relation were studied in Linhe,Inner Mongolia.The resuIts showed:planting density was key factor that influenced root yield,fertilizerdressing was the second,and the last one was seeding fertilizeri.The order of thesethree factors affecting root sucrose content was seeding fertilizer>density >fertilizerdressing.As for sucrose per unit yield,the order of contributive rate of the three factorswas:fertilizer dressing>density>seeding fertilizer.In addition,based on analysing maineffect of each factor and interaction of the each other,the superior cultivation of sugarbeet were put forward.The details are:density 915400-96000 plants/hm2,seeding fer-tilizer amount N38.55-54.3 P2os84.75-l38-75kslhm2,fertilizer dressing amountN124.65-158.25 Pzo541.55-52.9kg/hm2.