Table 6. The effect of the fertilisation program on the chlorophyll content in the leaves of the tested plants expressed by the leaf colour intensity index SPAD (Soil Plant Analysis Development).

	Combination	Sampling days
		0	2	8	12	15	p-value
SPAD	C	27,3Aa	21,3Aa	30,6Aa	30,1Aa	30,6Aa	0,0550
	B	17,8Aa	24,3Aa	23,8Aa	31,0Ab	36,7Ab	0,0198
	p-value	0,8315	0,0532	0,9701	0,5416	0,2461
	CS	21,9Aa	20,0Aa	24,4Aa	31,6Ab	28,2Ab	0,0110
	BS	26,2Aa	27,9Aa	30,4Aa	30,5Aa	24,2Aa	0,8443
	p-value	0,8714	0,7619	0,5779	0,4276	0,5208

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