Characteristics of Dry Matter Accumulation and N P K Absorption of Soybean Shangdou 6(PDF)
《大豆科学》[ISSN:1000-9841/CN:23-1227/S]
- Issue:
- 2013年03期
- Page:
- 381-384
- Research Field:
- Publishing date:
Info
- Title:
- Characteristics of Dry Matter Accumulation and N P K Absorption of Soybean Shangdou 6
- Author(s):
- ZHANG Qi
- (Shangqiu Academy of Agricultural and Forestry Sciences,Shangqiu 476000,China)
- Keywords:
- Shangdou 6; Dry matter accumulation; Nutrient element; Absorption characters
- PACS:
- S565.1
- DOI:
- 10.11861/j.issn.1000-9841.2013.03.0381
- 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 highyield cultivation of summer soybean.
Last Update: 2014-03-04