Table 5. The influence of the fertilisation program on the nitrogen and carbon content in the leaves of the tested plants.

	Combination	Sampling days
		0	2	8	12	15	p-value
Nitrogen concentration (mg/g-1 DW)	C	21,9Aa	22,5Aa	24,1Aa	22,6 Aa	24,1Aa	0,4234
	B	21,6Aa	24,2Aa	23,9Aa	24,4Aa	24,6Aa	0,6353
	p-value	0,8858	0,3645	0,9833	0,2769	0,8027
Carbon concentration (mg/g-1 DW)	C	492,1Aa	499,5Aa	491,2Aa	489,7Aa	492,9Aa	0,2983
	B	492,6Aa	495,5Aa	490,4Aa	488,5Aa	498,0Aa	0,1150
	p-value	0,9292	0,1943	0,8462	0,7902	0,1179
Nitrogen concentration	CS	22,9Aa	24,2Aa	23,3Aa	25,2Aa	23,4Aa	0,4315
	BS	23,2Aa	24,3Aa	24,9Aa	26,7Aa	27,5Aa	0,3346
	p-value	0,9284	0,9747	0,4348	0,2761	0,225
(mg/g-1 DW)	CS	496,2Aa	495,9Aa	492,9Aa	497,2Aa	490,5Aa	0,7723
	BS	489,7Aa	486,3Aa	495,1Aa	489,1Aa	491,9Aa	0,2152
	p-value	0,101	0,304	0,6861	0,361	0,8703

Capital letters in the column are for comparing the Modalities, small letters in the line are for comparing the impact of particular fertilisation programmes.