Parewa et al.
recorded with combined use of 10 t FYM ha -1 + 75%
the goal is to integrate the use of all natural and man-
NPK application (18.27 and 18.32 kg P2O5 ha -1 ) was
made sources of plant nutrients, so that crop productivity
significantly higher than recorded with application of
increases in an efficient and environmentally benign
100% NPK without FYM (17.26 and 17.36 kg P2O5
manner, without sacrificing soil productivity of future
ha -1 ). The increased availability of available P with
generations.
organics could be ascribed to their solubilizing effect on
the native soil P and consequent contribution of the P as
References
solubilized to labile pool. Incorporation of FYM along
Abraham, T. and Lal, R.B. 2004. Performance of blackgram
with inorganic fertilizer increased the availability of P
(Vigna mungo L.) under integrated nutrient management
to crop and mineralization of organic P due to microbial
(INM) in a legume based cropping system for the
action and enhanced mobility of P (Prasad et al., 2010).
Inceptisols of NEPZ. Indian Journal of Dryland
Agricultural Research and Development 19 (1): 81-87.
Interaction effect of fertilizers and FYM revealed
Bharadwaj, V. and Omanwar, P.K. 1994. Long-term effects of
that microbial population was increased by increasing
continuous rotational cropping and fertilization on crop
application of fertilizer (0, 50, 75 and 100% NPK) with
yields and soil properties-II, Effects on EC, pH, organic
FYM 10 t ha -1 or without FYM (Tables 5). The maximum
matter and available nutrients of soil, Journal of the
microbial population viz, bacteria (42.42 and 43.08 x105
Indian Society of Soil Science 42 (3): 387-392.
cfu g -1 soil) and fungi (26.25 and 27.42 x 104 cfu g -1 soil)
Bhardwaj, S.K., Sharma, I.P. and Sharma, S.D. 2010. Effect
was recorded in the treatment receiving 100% NPK+FYM
of integrated nutrient management on soil fertility, yield
@ 10 t ha -1 , but it was at par with 75% RDF+FYM 10 t
and quality of tomato and french bean crops in the mid
ha -1 during both the years. Hence the result indicated that
Himalayas. Journal of the Indian Society of Soil Science
54 (4):464-466.
higher dose of the fertilizer adversely affect the microbial
activity in the soil and it indicates that native soil has
Bhadoria, P.B.S., Prakash,Y.S., Kar S. and Rakshit, A. 2003.
Relative Efficacy of organic manures on the performance
sub-optimum population of these bacteria and responds
of rice in a lateritic soil. Soil Use & Management 19 :
to single as well as combined application with positive
80-82.
interaction (Chand et al., 2010). Addition of FYM with
Bhattacharyya, R., Ved, P., Kundu, S., Srivastava, A.K. and
inorganic fertilizer levels showed a profound increase
Gupta, H.S.2004. Effect of long-term manuring on
in the microbial population in comparison to chemical
soil organic carbon, bulk density and water retention
fertilizer used alone. FYM acts as a source of the
characteristics under soybean-wheat cropping sequence
nutrients and also as a substrate for decomposition and
in North-Western Himalayas. Journal of the Indian
mineralization of nutrients, thereby creating a favourable
Society of Soil Science 52 (3):238-242.
condition for the proliferation of microbes in the soil.
Chand, S., Anwar, M. and Patra, D.D.2006. Influence of long-
Selvi et al., (2004) recorded highest bacterial counts at
term application of organic and inorganic fertilizer to
build up soil fertility and nutrient uptake in mint-mustard
the end of the crop with the addition of FYM along with
cropping sequence. Communications in Soil Science and
100% NPK followed by 150% NPK.
Plant Analysis 37 : 63-76.
Chand, S., Somani, L.L. and Bhandari, S.C.2010. Effect of
Conclusion
fertilizer, farmyard manure (FYM) and biofertilizer on
the population of Azotobacter and phosphate solubilising
The overall results demonstrated that bulk density, water
bacteria (PSB) in the soil. Journal of the Indian Society
holding capacity, organic carbon, available N, P and K;
of Soil Science 58 (4):460-463.
and enzyme activity, soil microbial biomass carbon and
Dadhich, S.K., Somani, L.L. and Shilpkar, D.2011. Effect of
microbial properties of soil were improved by combined
integrated use of fertilizer P, FYM and biofertilizers
application of fertilizer levels, FYM and bioinoculants
on soil properties and productivity of soybean-wheat
over control. Hence, it can be concluded that integration
crop sequence. Journal of Advances in Developmental
of all the treatment in balance form improve the physico-
Research 2 (1):42-46.
chemical and biological properties of the soil. Finally
Datt, N., Dubey, Y.P. and Chaudhary, R.2013. Studies on impact
of organic, inorganic and integrated use of nutrients on
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