Table 3 Rates of N, P, K, and Zn fertilizers applied across seasons and years under various treatments in transplanted rice fields.

Number of experiments

95

82

75

87

Total N (kg ha⁻¹)

RCM_TC (T₁)

118.2^ns

109.9^ns

117.2^ns

113.2^ns

RCM_TZ_1/2n (T₂)

112.7

106.9

119.8

111.2

RCM_TZ_n (T₃)

113.1

100.4

118.5

109.2

RCM_TZ_1/2t (T₄)

117.3

112.5

125.9

110.1

RCM_TZ_t (T₅)

115.9

110.3

124.3

115.7

Season

^ns

Year

^ns

Total P₂O₅ (kg ha⁻¹)

RCM_TC (T₁)

28.7^ns

29.7^ns

26.5^ns

28.0^ns

RCM_TZ_1/2n (T₂)

26.2

27.1

30.6

31.4

RCM_TZ_n (T₃)

29.7

26.0

30.1

31.2

RCM_TZ_1/2t (T₄)

28.4

30.9

30.7

27.7

RCM_TZ_t (T₅)

28.3

30.0

28.4

30.0

Season

^ns

Year

^ns

Total K₂O (kg ha⁻¹)

RCM_TC (T₁)

34.0^ns

34.5^ns

37.6^ns

36.2^ns

RCM_TZ_1/2n (T₂)

31.3

33.7

45.5

35.7

RCM_TZ_n (T₃)

38.1

33.2

40.6

34.7

RCM_TZ_1/2t (T₄)

39.0

35.9

38.9

33.2

RCM_TZ_t (T₅)

36.6

33.8

37.5

35.3

Season

^ns

Year

^ns

Total Zn (kg ha⁻¹)

RCM_TC (T₁)

0.00^a

0.00^a

0.00^a

0.00^a

RCM_TZ_1/2n (T₂)

0.00^a

0.00^a

0.00^a

0.00^a

RCM_TZ_n (T₃)

0.00^a

0.00^a

0.00^a

0.00^a

RCM_TZ_1/2t (T₄)

2.63^b

2.63^b

2.63^b

2.63^b

RCM_TZ_t (T₅)

5.25^c

5.25^c

5.25^c

5.25^c

Season

^ns

Year

^ns