EFFECT OF CALCIPRILL AND MAGPRILL AS A LIMING MATERIAL ON MAIZE CROP IN RED AND LATERITIC SOIL OF RANCHI
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Date
2019
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Publisher
Birsa Agricultural University, Ranchi, Jharkhand-6
Abstract
Maize is one of the most important crops of the world and contributes to food
security in most of the developing countries. In India, maize is emerging as third most
important crop after rice and wheat. It is grown throughout the year in India. It accounts
for 9 per cent of the total food grain production in the country. Productivity of maize has
increased at a CAGR (Compound Annual Growth Rate) of 2.9 per cent from 1.9
MT/hectare in 2010-11 to 2.5MT/hectare in 2016-17. It is utmost important to maintain
the soil pH for proper growth and to increase productivity of maize in acidic soils.
Hence, liming is the best method which is currently used worldwide
Keeping in view these facts, a field experiment was laid out in Randomized
Block Design with three replications in Maize at an experimental site of the Department
of Soil Science & Agricultural Chemistry, Birsa Agricultural University, Kanke, Ranchi,
Jharkhand during Kharif season of 2017 in acidic soil of Ranchi with objective to
observe acidity pattern of soil after liming and its periodic estimation at an interval of 30
days. The liming materials used in the experiment were Calciprill, Magprill and
Dolomite. Treatments for Maize were T1: Calciprill + 100% NPK, T2: Calciprill + 75%
NPK, T3: Magprill + 100% NPK, T4: Magprill + 75% NPK, T5: Dolomite + 100%
NPK, T6: Dolomite + 75% NPK, T7: 100% NPK and T8: 75% NPK. (RDF of Maize -
120:60:40)
Results showed that the soil pH of the plots treated with Magprill + 100% NPK
were most effective in increasing the soil pH at 30 days of liming followed by Calciprill
and Dolomite. Further, it was observed that pH got continuously increased during the 60
days interval in all the plots, where liming materials were used and followed the same
trend. All the three liming materials effectively increased the exchangeable calcium as
they all contain calcium but trend differed. This may be due to different percentage of
calcium content, solubility, weathering and moisture content in soil during liming. Plots
treated with Calciprill showed maximum value of Calcium followed by Magprill and
Dolomite. Similarly, all the three liming materials effectively increased exchangeable
magnesium in soil and found maximum in Magprill (3.68), as all of them contained
magnesium. The highest magnesium content was shown in Magprill followed by
Dolomite and Calciprill respectively.
The grain yield was more in all the limed plots as compared to control, this is
because of calcium content as calcium promotes root development and growth of plant as
it is involved in root elongation and cell division. Liming materials were effective in
increasing grain yield in the order of Magprill > Calciprill > Dolomite, this may be due
to their different chemical composition. Magprill showed more grain yield due presence
of magnesium as it plays an important role in the synthesis of chlorophyll and it regulates
the uptake of nitrogen and phosphorous from the soil and plays an important role in the
production of carbohydrates, proteins, fats and vitamins.
Liming materials were characterized and found that the pH of Magprill (9.12)
was highest among other liming materials and followed by Calciprill (9.10) and dolomite
(9.02) respectively. Highest calcium content was found in Calciprill (34.44%) followed
by Magprill (24.40) and Dolomite (21.96). Similarly highest magnesium content was
found in Dolomite (13.01%) followed by Magprill (11.52%) and Calciprill (1.54%)
respectively. The solubility of the different liming materials were also analyzed with the
help of centrifuge at 12000 rpm and found Magprill more soluble (42.67%) followed by
Calciprill (42.33%) and Dolomite (29.17%) respectively.
Description
EFFECT OF CALCIPRILL AND MAGPRILL AS A LIMING MATERIAL ON MAIZE CROP IN RED AND LATERITIC SOIL OF RANCHI
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