Table 3. K harvest index, K internal efficiency , reciprocal IE, apparent K balance and apparent K recovery efficiency in 2005/2006 and 2006/2007 growing seasons.


Table 3. K harvest index (KHI), K internal efficiency (IE_K), reciprocal IE (RIE_K, kg K in above-ground plant DM per 1,000 kg rapeseed), apparent K balance (the rate of K supply - K uptake in above-ground plant DM) and apparent K recovery efficiency (RE_K) in 2005/2006 and 2006/2007 growing seasons.
Treatment		KHI	IE_K	RIE_K	K balance	RE_K
		kg kg^-1	kg kg^-1	kg 1,000 kg^-1	kg K ha^-1	%
CK	Range	0.07-0.51	9.1-70.0	14.3-110.2	-270.5 - -29.3	—
	Aver.±Std.	0.17±0.07 a	21.9±10.4 a	45.7	-117.6±51.0 b	—
+K	Range	0.06-0.24	9.8-33.1	30.2-102.2	-181.4-54.9	0-100.0
	Aver.±Std.	0.14±0.04 b	17.7±5.5 b	56.5	-56.8±53.5 a	39.3±27.1