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Effects of Organic and Inorganic Fertilizers on Soil and Plant Nutrients and Yields of Pearl Millet and Wheat under Semi-arid Inceptisols in India
Ist Teil von
Communications in Soil Science and Plant Analysis, 2015-11, Vol.46 (20), p.2595-2614
Ort / Verlag
Philadelphia: Taylor & Francis
Erscheinungsjahr
2015
Quelle
Taylor & Francis
Beschreibungen/Notizen
A study was conducted to assess fertilizer effect on pearl millet-wheat yield and plant-soil nutrients with the following treatments: T
1
, control; T
2
, 100% nitrogen (N); T
3
, 100% nitrogen and phosphorus (NP); T
4
, 100% nitrogen, phosphorus and potassium (NPK); T
5
, 100% NPK + zinc sulfate (ZnSO
4
) at 25 kg ha
−1
; T
6
, 100% NPK + farmyard manure (FYM) at 10 t ha
−1
; T
7
, 100% NPK+ verimcompost (VC) at 2.5 tha
−1
; T
8
, 100% NPK + sulfur (S) at 25 kg ha
−1
; T
9
, FYM at 10 t ha
−1
; T
10
, VC at 2.5 t ha
−1
; T
11
, 100% NPK + FYM at 10 t ha
−1
+ 25 kg S ha
−1
+ ZnSO
4
at 25 kg ha
−1
; and T
12
, 150% NPK treatments. Treatments differed significantly in influencing soil-plant nutrients and grain and straw yields of both crops. Grain yield had significant correlation with soil-plant N, P, K, S, and zinc (Zn) nutrients. The study indicated superiority of T
11
for attaining maximum pearl millet grain yield (2885 kg ha
−1
) and straw yield (7185 kg ha
−1
); amounts of N (48.9 kg ha
−1
), P (8.8 kg ha
−1
), K (26.3 kg ha
−1
), S (20.6 kg ha
−1
), and Zn (0.09 kg ha
−1
) taken up; and amounts of soil N (187.7 kg ha
−1
), P (13.7 kg ha
−1
), K (242.5 kg ha
−1
), S (10.1 kg ha
−1
), and Zn (0.70 kg ha
−1
). It was superior for wheat with grain yield (5215 kg ha
−1
) and straw yield (7220 kg ha
−1
); amounts of N (120.7 kg ha
−1
), P (13.8 kg ha
−1
), K (30 kg ha
−1
), S (14.6 kg ha
−1
), and Zn (0.18 kg ha
−1
) taken up; and maintaining soil N (185.7 kg ha
−1
), P (14.5 kg ha
−1
), K (250.5 kg ha
−1
), S (10.6 kg ha
−1
), and Zn (0.73 kg ha
−1
). Based on the study, 100% NPK + FYM at 10 tha
−1
+ Zn at 25 kg ha
−1
+ S at 25 kg ha
−1
could be recommended for attaining maximum returns of pearl millet-wheat under semi-arid Inceptisols.