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Nutrient Management in Maize Hybrid During Kharif Season

KrishiKosh

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Title Nutrient Management in Maize Hybrid During Kharif Season
 
Creator Saha, Pallavi
 
Contributor Mohapatra, A.K.
 
Subject Nutrient Management , Maize Hybrid, Kharif Season
 
Description A field experiment was conducted at the Central Research Station, Orissa University of
Agriculture and Technology, Bhubaneswar during Kharif season of 2014 on “Nutrient Management
in Maize Hybrid during Kharif Season”. The soil was acidic (pH 6.2), well drained, sandy loam, low
in organic carbon (4.2 g kg-1) and available nitrogen (308.6 kg ha1), high in phosphorus (42.6 kg ha-1)
and medium potassium (256.9 kg ha-1), low in sulphur (13.50 kg ha-1) and Zinc (0.541 ppm). Four
varieties (Hybrids P 3060, P 3396, P 3292 and P 3441) and four nutrient management practices (NPK
80-40-40 kg ha-1, NPK 80-40-40 kg ha-1+ ZnSO4 @ 25 kg ha-1, NPK 80-40-40 kg ha-1+ FYM @ 5 t
ha-1 and NPK 100-50-50 kg ha-1) were studied in a split plot design with 3 replications. The crop was
sown on 08th June, 2014 and received 1328.7 mm rainfall during the growing season. Plants of maize
hybrid P 3060 grew rapidly at all the stages of growth having more LAI (4.14 at 60 DAS), maximum
CGR (4.13 g day-1m-1 at 60-90 DAS ) and accumulated more dry matter (219.59 g plant -1 at harvest)
followed by the hybrid P 3396 ,P 3441and P 3292. It also recorded maximum cob length (20.3cm),
grains per cob (536.9), weight of grains per cob (157.3g) and bold grains (1000 grain weight 298.3g)
compared to other hybrids. It recorded higher uptake of all nutrients viz. N (176.82 kg ha-1), P (50.75
kg ha-1), K (266.50 kg ha-1), S (19.05 kg ha-1) and Zn (463.90 g ha-1) and the maximum grain and
stover yield of 7.18 and 9.83 t ha-1, respectively followed by the hybrids P 3396 (6.98 and 9.43 t ha-1)
and P 3441 (6.80 and 9.35 t ha-1). The hybrid P 3292 recorded 9.47 and 5.49 per cent less grain and
stover yield, respectively than P 3060. Application of NPK 100:50:50 kg ha-1 produced more LAI
(4.31 at 60 DAS), maximum CGR (3.97 g day-1m-1 at 60-90 DAS ) and accumulated more dry matter
(219.56 g plant -1 at harvest) followed by the application of NPK 80-40-40 kg ha-1+ FYM @ 5 t ha-1,
NPK 80-40-40 kg ha-1+ ZnSO4 @ 25 kg ha-1and NPK 80-40-40 kg ha-1. This nutrient management
practices also recorded maximum cob length (19.70 cm), grains per cob (528.2), weight of grains per
cob (153.7 g) and bold grains (1000 grain weight 299.6 g) compared to other nutrient management
practices. Application of NPK 100:50:50 kg ha-1 recorded higher uptake of all nutrients viz. N
(172.35 kg ha-1), P (45.01 kg ha-1), K (250.30 kg ha-1). However uptake of S (13.00 kg ha-1) and Zn
(365.85 g ha-1) was lower compared to the other nutrient management practices. Maximum grain and
stover yield of 7.01 and 9.52 t ha-1 was recorded by NPK 100:50:50 kg ha-1, respectively followed by
the application of NPK 80-40-40 kg ha-1+ FYM @ 5 t ha-1 (6.90 and 9.49 t ha-1) and NPK 80-40-40
kg ha-1+ ZnSO4 @ 25 kg ha-1 (6.80 and 9.47 t ha-1). The application of NPK 80-40-40 kg ha-1recorded
3.85 and 1.05 per cent less grain and stover yield, respectively over application of NPK 100:50:50 kg
ha-1. Maximum gross return (Rs.99900 ha-1) and B: C ratio (2.13) was obtained with V1F4 (P 3060
with of NPK 100:50:50 kg ha-1) and V1F1 (P 3060 with NPK 80:40:40 kg ha-1) recorded the gross
return of Rs 95850 ha-1 and B: C ratio of 2.11. Soil fertility was either maintained or improved
compared to their initial values at the end of the cropping season as evident from the available
nutrient status of the soil.
 
Date 2017-01-12T13:04:46Z
2017-01-12T13:04:46Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/95919
 
Language en
 
Relation Th;4460
 
Format application/pdf