Effect of nano fertilizers on growth, yield and quality of sesame (Sesamum indicum L.)
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Date
2023-10-03
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Agriculture University, Jodhpur
Abstract
A field experiment entitled “Effect of nano fertilizers on growth, yield and quality of
Sesame (Sesamum indicum L.)” was conducted at Instructional Farm, College of
Agriculture, Jodhpur (Rajasthan) during kharif season 2022. Field experiment was
laid out in factorial randomized block design (FRBD) with sixteen treatment
combinations and replicated thrice. The treatments were taken in the investigation viz.
control (N0), Seed Treatment with 5ml/kg nano DAP (N1), Seed treatment with
5ml/kg nano DAP + one foliar spray of nano urea (2 ml/l of water) at 25 DAS (N2),
Seed treatment with 5ml/kg nano DAP + Two foliar spray of nano urea (2 ml/l of
water) at 25 and 35 DAS (N3) under nano fertilizers, however, control (F0), 100%
RDN (F1), 75% RDN (F2), 50% RDN (F3), under RDN levels.
Results revealed that application of Seed treatment with 5ml/kg nano DAP + Two
foliar spray of nano urea (2 ml/l of water) at 25 and 35 DAS (N3) of sesame
significantly had higher growth attributes viz. plant height (32.3, 69.1 and 99.6 cm),
dry matter accumulation (1.78, 6.84 and 11.86 g/plant), chlorophyll content in leaves
(SPAD value) (36.0, 50.3 and 70.3 SPAD-Value), number of branches (1.65 and
2.77), number of leaves (18.5, 49.8 and 81.3/plant) at 30, 45 and 60 DAS,
respectively, as well as significantly increases yield attributing characters viz. length
of capsule (2.6 cm), width of capsule (0.82 cm), number of capsules/plant
(33.0/plant), weight of capsule (18.68 g/plant), number of seed/capsule (48.5/capsule),
seed yield (888 kg/ha), straw yield (2079 kg/ha) and biological yield (2911 kg/ha)
along with harvest index (30.42%) followed by the treatment with Seed treatment
with 5ml/kg nano DAP + one foliar spray of nano urea (2 ml/l of water) at 25 DAS
(N2). Similar trends were also observed with nitrogen and phosphorus content in seed
(3.53 and 0.553%) and straw (1.77 and 0.283%) results in higher uptake of nitrogen
and phosphorus by seed (33.42 and 4.62 kg/ha) and straw (32.91 and 5.76 kg/ha),
respectively as well as protein content (22.03%) of sesame and showed significant
superiority over rest of the treatments. Increase in seed and straw yield, which
subsequently improved gross returns ( 67756 and 61413/ha), net returns ( 41857
and 36207/ha) and B C ratio (2.59 and 2.31) due to application of seed treatment
with 5ml/kg nano DAP + Two foliar spray of nano urea (2 ml/l of water) at 25 and 35
DAS (N3) and seed treatment with 5ml/kg nano DAP + one foliar spray of nano urea
(2 ml/l of water) at 25 DAS (N2), respectively.
Results further revealed that among different levels of RDN, 100% RDN (F1) was
remained at par with 75% RDN (F2) with respect to all parameters taken during
experiment. Application of 100% RDN (F1) significantly increases growth attributes
of sesame viz. plant height (33.3, 69.9 and 100.3), dry matter accumulation (1.85, 6.71
and 11.31 g/plant), chlorophyll content in leaves (SPAD value) (36.3, 49.6 and 69.8
SPAD value), number of branches (1.61 and 2.63/plant), number of leaves (18.2, 50.7
and 82.5/plant) at 30, 45 and 60 DAS, respectively, that enhanced yield attributing
characters viz. length of capsule (2.6 cm), width of capsule (0.84 cm), number of
capsules/plant (32.2/plant), weight of capsule (20.08 g/plant), number of seed/capsule
(49.2/capsule), seed yield (922 kg/ha), straw yield (2161 kg/ha) and biological yield
(3026 kg/ha) along with harvest index (30.59%) over its lower dose i.e. 75% RDN
(F2), 50% RDN (F3) and control (F0). It was also recorded significantly higher
nitrogen and phosphorus content in seed (3.08 and 0.552%) and straw (1.36 and
0.233%) results in higher uptake of nitrogen and phosphorus by seed (33.38 and 4.39
kg/ha) and straw (36.28 and 5.52 kg/ha), respectively as well as protein content
(22.42%) of sesame over rest of the treatments, but remained at par with 75% RDN
(F2). Improvement in yield of sesame, which subsequently improved gross returns (
71566 and 59541/ha), net returns ( 46002 and 34116/ha) and B C ratio (2.80
and 2.26) under the treatment 100% RDN followed by 75% RDN, respectively. Based
on net return and B C ratio, application of 75% RDN (F2) with seed treatment with
5ml/kg nano DAP + Two foliar spray of nano urea (2 ml/l of water) at 25 and 35 DAS
(N3) was more remunerative treatments in sesame as compared to rest of the
treatments.
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Citation
Meena, Lal chand 2023. Effect of nano fertilizers on growth, yield and quality of sesame (Sesamum indicum L.). M.Sc. Thesis, College of Agriculture, Agriculture University, Jodhpur