Table 3 Descriptive statistical characteristics of petiole NO₃⁻-N, PO₄³⁻-P and K⁺-K at yield level of 4800–6000 kg/ha

From: Establishment of an NPK nutrient monitor system in yield-graded cotton petioles under drip irrigation

Element	Full bud stage					Full bloom stage					Full boll stage
Element	Max	Min	AV	SD	CV%	Max	Min	AV	SD	CV%	Max	Min	AV	SD	CV%
NO₃^—N (mg/L)	9500	7000	8393	736.69	8.8	7000	5000	6327	597.66	9.5	5500	3000	4703	710.26	15.1
PO₄^3—P (mg/L)	180	85	152	28.96	19.1	300	200	261	29.48	11.3	200	100	163	30.24	18.6
K⁺-K (mg/L)	9000	7000	8200	624.22	7.6	7000	5000	6213	597.54	9.6	4000	2000	3253	599.27	18.4

Max, Min, AV, SD and CV represent the maximum, minimum, average, standard deviation and coefficient of variation, respectively

Back to article page

ISSN: 1746-4811

Contact us

Submission enquiries: journalsubmissions@springernature.com