INTRODUCTION Rice (Oryza sativa) is one of the most important food crops of the world. Approximately 90% of the annual production is consumed in Asia because it is an excellent source of carbohydrate containing approximately 87% in grain, 7 to 8% protein, which has higher digestibility, biological value and more nutritious, possesses lower crude fiber and lower fat (1-2%). In India rice is grown in 43.30 M ha with annual production of 105.42 MT and productivity of 2412 kg ha-1. In Madhya Pradesh, it is grown in an area of 2.29 M ha with production of 4.23 MT and productivity of 1847 kg ha-1 (Anonymous, 2018). The food grain requirement in India is gradually increasing every year and it may reach around 350 MT due to increasing population pressure expected to 1.8 billion up to 2050. Presently, the productivity of rice in Madhya Pradesh is lower than national average. The productivity of the crop is low compared to the potential of this crop. One possible way to enhance crop productivity by chemical fertilization, no doubt it enhanced the crop productivity due to their function of directly feeding the crop, which is the result of their high or complete solubility in water. It is recognized that fertilizers must be used properly and in the correct form and amount to suit the needs of the soil and the crop. An unsuitable balance of nutrients may adversely affect the yield and composition of the crop (Ogg, 1953). Due to injudicious uses of chemical input in agricultural system detonated the soil deterioration, food, environmental and human health hazards, chemical fertilization also increasing their prices 21st century (Jat et al., 2015). The most desirable way to meet the food grain requirements is maintenance of good soil health and stability in production through use of organic and biological resources (Kulshreshtha, 2018) and they are very cost effective. But the release of organically bound nutrients in soil through biological activity is not necessarily synchronized with crop demands and occurs even at times when there is no crop growth. Nutrient additions on organic forms are designed to maintain soil fertility, but not to directly feed plants (Kirchmann and Ryan 2004). Inorganic fertilizers are crucial to increase crop yield, they are generally not affordable by small-scale subsistence farmers of developing world. On the other hand, the soil-derived as well as the externally-supplied organic sources of nutrients will not be sufficient to achieve high yield. Organic and inorganic fertilizers have different functions in soil and complement with each other. While input of organic manures contributes to the build-up of soil organic matter, increases the cation exchange capacity, supports soil structure, helps to chelate micronutrients, increases soil moisture retention, etc., inorganic fertilizers supply crops with nutrients at times when their demand is large. Keeping the above aspects in view the study was conducted to “To find out the suitable source of nutrient management and optimum level of nutrients for maximum rice production”. MATERIAL AND METHODS The experiment was conducted on rice during Kharif 2019 in the field of Research Farm, Department of Soil Science and Agricultural Chemistry, JNKVV, Jabalpur which is situated in the South-Eastern part of M.P. at 23°10 North latitude, 79°58 East longitudes at an altitude of 393 meter above mean sea level. The experiment was laid out in split plot design with 3 replications, the main treatments were nutrient management, M1 = Chemical, M2 = Organic and M3 = INM. The sub plot treatments were levels of NPK, S1 = 0% NPK (Control), S2= 100%NPK (120-60-40 NPK), S3 = 150%NPK (180-90-60 NPK), S4 = 200%NPK (240-120-80 NPK) and S5 = STV based NPK (149-176-33 NPK). The climate of Jabalpur region is typically sub-humid, featured by hot dry summer and cool dry winter. The soil of the experimental field was Vertisol, belonged to Kheri series of the montmorillonitic hyperthermic family of Typic Haplusterts and popularly known as medium black soil. Rice variety Kranti was used as a test variety in this experiment. This variety was sown on 1 Aug 2019 and harvested at 23 Nov 2019. Five randomly selected plants were tagged in net plot area and growth and yield attributing parameters i.e plant height, numbers of tillers per plant, dry matter of plants at 40, 60, 90 DAS and at harvest, no. of panicle, no. of seeds per panicle, panicle length, test weight, grain and straw yield, harvest index were recorded. Statistical analysis. The data pertaining to each character of the rice crop were tabulated variance for split plot design was worked out and significance of treatments were tested to draw valid conclusions as described by Gomez and Gomez (1984). In the split plot design the differences of treatments mean were tested by ‘F’ test of significance on the basis of null hypothesis. Critical Differences were calculated at 5% level of probability if ‘F’ test was significant the Standard error of mean (SEm) were calculated accordingly. RESULT AND DISCUSSION Plant height and dry matter accumulation. The data presented in (Table 1&2) revealed that application of chemicals significantly increased the plant height and dry matter production over integrated sources of nutrients at 40 and 60 DAS but the difference between the two treatment was found non-significant in plant height at 40, 90 DAS and at harvest and 90 DAS in dry matter production and the application of chemicals and integrated sources of nutrients significantly increased the dry matter production at all the growth stages over organics except at 40 DAS with integrated sources of nutrients at 40, 90 DAS and at harvest. The result have close conformity with the findings of Aruna and Mohhamad (2005); Barik et al. (2006); Krishna et al. (2008); Dutt and Chauhan (2010); Murthy (2012); Sarker et al. 2017). The application of 100, 150, 200% NPK and soil test value (STV) based NPK significantly increased the plant height over control at all the growth stages of rice. The application of 150% NPK level and STV based NPK levels were found significant over 100% NPK at all growth stages and the application of 150 % NPK was also found significantly superior to 200% NPK at all growth stages in plant height but in dry matter it was found at par at 60 DAS. Similar findings were reported Dutt and Chauhan (2010); Murthy (2012). In interaction, the increasing levels of NPK and STV based NPK levels with all the sources were found significant over control at all the growth stages except @ 100% NPK with organics at 40 and 60 DAS. However, the 150% NPK with all the sources of nutrients were found significant over 100% NPK at 90 DAS and at harvest except 150% NPK with chemicals 90 DAS. Similarly, 150% NPK with organics was also found significant over 200% NPK at 90 DAS and at harvest. The application of 100, 150, 200% NPK and STV based NPK level with chemicals and integrated sources of nutrients were found significant over the same level of NPK with organics at all growth stages except at 100 and 200% NPK with integrated sources of nutrients at 40 DAS and 150% NPK with chemicals and integrated sources of nutrients at 90 DAS in plant height and in dry matter the application of 100, 150 and 200% NPK with chemicals and integrated sources of nutrients were found significant over organics at the same level of NPK at 60 and 90 DAS except 100 and 200% NPK with integrated source at 60 DAS. The STV based NPK was also found significant over organics at the same level of NPK at 60 DAS. The increased the plant height with 150%NPK with chemicals also reported by Meena et al. (2003); Awan et al. (2011); Singh and Kumar (2014). Yield attributing characters. The data presented in Table 3&4 showed that the number of effective tillers, number of panicles per plant, panicle length and test weight of rice grain increased with increasing levels of NPK up to 150% NPK then decreased at 200% NPK. The application of 100, 150, 200% NPK and STV based NPK significantly increased the number of effective tillers, number of panicles plant-1, panicle length and test weight of rice grain over control. However, the application of 150% NPK and STV based NPK level were found significantly superior to 100% NPK for number of tillers per plant, number of panicles per plant, panicle length but the difference between the two treatment was found non-significant for number of panicles and panicle length. While the 150% was found significantly superior to 100 and 200% NPK and STV based NPK level for test weight of rice. The increase of number of tillers with increasing levels of nutrients also supported by Krishna et al. (2008); Dutt and Chauhan (2010); Murthy (2012). The increase of number of panicles with supply of NPK was also confirmed by Singh et al. (2013); Imade et al. (2017). Similarly, the application of NPK increased the panicle length was also reported by Hasanuzzaman et al. (2010); Awan et al. (2011); Alim (2012); Ramalakshmi et al. (2012). Arif et al. (2014); Tiwari et al. (2017). In the interaction, the application of 150% NPK with integrated sources was found significant over 100 and 200% NPK for panicle length and test weight of rice. The application of 100 and 200% NPK with chemicals and 100%NPK with integrated sources of nutrients were found significantly superior to organics at the same level of NPK for panicle length. might be due to higher level of NPK increased the availability of NPK nutrients as the fertilizer nutrients are readily available to plants which increased the yield components of rice. The increase of number of tillers with NPK level was confirmed by Dash et al. (2011). The increase of number of panicles with NPK levels was supported by Singh and Agarwal (2001); Mirza et al. (2010). The increase of test weight with NPK level were reported by Ramalakshmi et al. (2012); Arif et al. (2014). Grain and Straw yield. The data presented in Table 5 indicated that the maximum grain yield (3760 kg ha-1) and straw yield (5681 kg ha-1) were observed with the application of chemicals followed by integrated sources of nutrients (grain 3514 kg ha-1 and straw 4876 kg ha-1) and organics (grain 2637 kg ha-1 and straw 4029 kg ha-1). The application of chemicals and integrated sources of nutrients significantly increased the grain yield over organics but the sources were found at par. The results are in agreement with the finding of Sowmya et al. (2011); Singh et al. (2011); Majumdar et al. (2007); Tiwari et al. (2017). The grain and straw yield increased with increasing levels of NPK up to 150% NPK (grain 3954 kg ha-1 and straw 5921kg ha-1) then decreased at 200% NPK (grain 3405 kg ha-1 and straw 5119 kg ha-1). The application of 100,150,200% NPK and STV based NPK level significantly increased the grain and straw yield over control but the treatments were found at par amongst themselves. Similar results reported by Yadav and Meena, (2014) and Baishya et al. (2015). In the interaction application of 100, 150, 200 % NPK and STV based NPK levels with chemicals and integrated sources of nutrients were found significant over the same level of NPK with organics for grain yield except 100% NPK and 200% NPK with integrated sources of nutrients. The maximum grain yield of 4479 kg ha-1 and straw yield of 6929 kg ha-1 were observed with 150% NPK with chemicals respectively might be due to the continuous supply of nutrients in balanced amount throughout the growth period augmented production of sufficient photosynthates and their effective translocation from source to sink resulted in higher grain and straw yield. While the 200 % NPK level produced the excessive growth of rice plant resulted the highest straw yield. Similar, findings were reported by Sowmya et al. (2011); Sepehya et al. (2012); Singh et al. (2014); Shrivatava et al. (2013); Nanda et al. (2016); Tiwari et al. (2017). Harvest Index. The data presented in Table 5 showed that the maximum harvest index (42.1%) was observed with the application of integrated followed by chemical sources of nutrients (40.36%) and organics (39.51%) but the sources were found non-significant also reported by Kandel et al. (2018). The interaction between sources of nutrients and levels of NPK were found non-significant for harvest index of rice. The maximum harvest index of 43.73% was observed with control. Available N, P and K. The data presented in table 6 indicated that the maximum available Nitrogen (219 kg ha-1), phosphorous (13.01kg ha-1) were observed with the application of chemicals followed by integrated and organics. While, the maximum available potassium (251kg ha-1) was observed with the application of integrated sources of nutrients followed by chemicals (247kg ha-1) and organics (237kg ha-1) but the sources of nutrients were found non- significant for available N and K. The application of chemicals and integrated sources of nutrients significantly increased postharvest available P over organics but the sources of nutrients were found at par (Gupta et al. 2006).