Research on the Effect of Rape Seed Germination Based on Environment Friendly Seed Coating Mixing Different Potassium Fertilizers

Abstract:

Studying on the effect of different potassium fertilizers (KCl, KNO3, KH2PO4, K2SO4) based on pre-development environment friendly seed coating, which using chitosan as the main material. The results indicated that: 1) the best ratios of 4 potassium fertilizers in environment friendly seed coating , which was KCl, KNO3, KH2PO4, K2SO4, were from 0.025% to 0.05%, from 0.025% to 0.05%, from 0.025% to 0.075%, 0.025% respectively. And the high-to-low effect of coating rape seeds, based on environment friendly seed coating mixed different potassium fertilizers, was KNO3 > KH2PO4 > K2SO4 > KCl; 2) when mixed with environment friendly seed coating and used to coat rape seed, the synergistic effect between K and N in KNO3 was better than K and P in KH2PO4, and the above-mentioned two synergistic effects were better than K and S in K2SO4; 3) when the percent range of total weight of three elements (N, P, K) in environment friendly seed coating from 0.01% to 0.03%, the effect of rape seed germination was improved remarkable.

• Periodical: Applied Mechanics and Materials (Volumes 246-247)
• Pages: 648-652
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.246-247.648
• Online since: December 2012
• Authors: En Wen Wang
• Keywords: Environment Friendly Seed Coating, Germination, Potassium Fertilizer, Rape

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