Research on Quantitative Evaluation of Remote Sensing and Statistics Based on Wireless Sensors and Farmland Soil Nutrient Variability

Table 3

Statistical characteristics of soil available nutrients at different sampling scales.

Scale	Variable	Min (mg·kg^−1)	Max (mg·kg^−1)	Mean (mg·kg^−1)	SD (mg·kg^−1)	Ske	Kur	sig	Coefficient of variation (%)	Distribution type
County	AN	9.01	169.01	80.83	21.33	0.44	0.83	0.07	26.37	N
	AP	1.01	93.01	23.08	14.21	1.38	2.53	0.04	61.48	LN
	AK	24.01	553.01	177.35	81.76	1.27	2.12	0.12	46.11	LN
Field	AN	16.83	126.88	56.12	24.61	0.88	1.03	0.66	43.85	N
	AP	19.58	133.86	55.44	29.08	1 .05	0.37	0.06	52.42	N
	AK	134.08	373.17	252.85	70.59	−0.13	−1.28	0.32	27.93	N
Plot	AN	15.28	264.47	88.14	47.72	1.06	1.58	0.37	54.12	N
	AP	15.33	153.44	63.38	29.23	0.75	0.34	0.63	46.12	N
	AK	170.12	669.83	308.87	80.42	0.56	2.86	0.17	26.04	LN