EFFECT OF ORGANIC AND INORGANIC NUTRIENT SOURCES ON THE QUALITY OF SCENTED RICE
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Date
2003
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Indira Gandhi Krishi Vishwavidyalaya, Raipur
Abstract
A field experiment was carried out in the Department of Soil Science,
IGAU, Raipur (C.G.) to study the "Effect of organic and inorganic nutrients
sources on the quality of scented rice" in Inceptisol and Vertisol.
The results showed that grain yield of rice was significantly affected by soil
type and higher yields were obtained on Inceptisol man Vertisol. A significant
response of grain yield was also observed due to N, P and FYM application.
The effect of FYM application was less marked but its combination with
different levels of N and P fertilizer resulted in significant increase in yield.
The N and P interaction was also significant. The marginal return was
higher than marginal cost upto the N: P combination of 120:80 kg ha"1,
considered as profitable dose.
Among all physical quality parameters, brown rice length, brown rice L:B
ratio, milled rice length, milled rice L:B ratio, head rice recovery, cooked rice
length and aroma were higher in Inceptisol, while paddy L:B ratio, milling
percentage and protein content per cent were significantly higher in Vertisol.
In case of nitrogen fertilization most of the physical quality traits like paddy
length, brown rice length, milled rice length remained unaffected, on the other
hand milling percentage, head rice recovery, protein content and aroma
significantly increased with N, which indicates that nitrogen enriched the grain
and reduced the breakage during milling. The effect of P application on all the
rice quality parameters was not significant except on protein content.
The protein content and aroma were significantly affected by FYM
application. The aroma in leaves also increased with high level of FYM. The
other quality parameters were not significantly affected by FYM application due
to its low nutrient content.
The best integrated management strategy identified from this study is 60 kg
N ha"1, 80 kg P ha"1 and 5 t FYM ha"1 for obtaining better quality scented rice
with higher yields.