大豆科学2013，Vol.32Issue(3)：381-384,4.
商豆6号干物质积累和氮磷钾吸收特点的研究
Characteristics of Dry Matter Accumulation and N P K Absorption of Soybean Shangdou 6
摘要
Abstract
In this paper,dry matter accumulation and N P K uptake of Shangdou 6 were studied.The results showed that,under the yield level of 3 784.5 kg·ha-1,most dry matter,accounting for 53.68％ of total,were accumulated from podding to seed filling,with average daily increasing rate of 450.55 kg·ha-1.The most amount of N,P2O5 and K2O were absorbed between podding and seed filling,accounting for 47.27％,43.98％ and 46.54％ of total,respectively.The production of 100 kg soybean seeds need 8.06 kg N,1.97 kg P2O5 and 4.18 kg K2O.So the combined application of N P K fertilizers,with P and K as centralized base fertilizer,N topdressed in the beginning of flowering and sprayed foliar fertilizer at seed filling were necessary for high yield of Shangdou 6.This study provided a theoretical basis for the rational fertilization for high-yield cultivation of summer soybean.关键词
商豆6号/干物质积累/营养元素/吸收特点Key words
Shangdou 6/ Dry matter accumulation/ Nutrient element/ Absorption characters分类
农业科技引用本文复制引用
张琪..商豆6号干物质积累和氮磷钾吸收特点的研究[J].大豆科学,2013,32(3):381-384,4.基金项目
国家农业科技成果转化资金(2010GB2D000289) （2010GB2D000289）
现代农业产业技术体系建设专项(CARS-004). （CARS-004）
