Table 1 Estimate of the nutrient balance (NB) and nutrient use efficiency (NUE), kg ha−1, in two experimental years.

From: Nitrogen balance and efficiency as indicators for monitoring the proper use of fertilizers in agricultural and livestock systems

 

Treatments

p

CROP

LS

ICLS-1

ICLS-2

ICLS-3

ICLS-4

Input (kg ha−1)

Fertilizer

224

112

192

192

192

192

 

Output (kg ha−1)

Products

321a

18c

172b

190b

180b

188b

 < 0.0001

NB

−97c

94a

20b

2b

12b

4b

 < 0.0001

NUE

1.43a

0.16c

0.89b

0.99b

0.94b

0.98b

 < 0.0001

SN (soil)

11570b

11050b

14570ª

13750ª

11190b

14370a

 < 0.0001

  1. Means followed by distinct letters are statistically different, according to the Tukey’s test at a 5% probability level.
  2. CROP production of maize grain, LS production of beef cattle in pasture, ICLS-1 maize and Marandu grass sowed simultaneously without herbicide, ICLS-2 maize and Marandu grass sowed simultaneously with herbicide, ICLS-3 delayed sowing of maize and Marandu grass, ICLS-4 maize and Marandu grass sowed simultaneously in maize lines and interlines with herbicide, SN soil nitrogen stocks.
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