Effect of Nitrogen Application through Urea and Azolla on Growth and Biological Yield of Rice (Oryza sativa L.) in Acidic Soil of Meghalaya

Singh, Shubham; Swami, Sanjay; Gurjar, G.N.

doi:10.20546/ijcmas.2018.707.366

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The reason of an increasing may be due to superior of azola application treatment in number of panicles per plant (Table 3) and number of grains per panicle (Table 4). These results are in agreement with [19,20] who found an increase in the grain yield of rice when application of azolla. Table 6 indicated that the application of phosphor fertilizer levels was significantly effected on the grain yield, the application of 42 Kg P ha -1 gave the highest mean (3.946 ton ha -1 ) compared with others especially control treatment which gave the lowest mean (3.669 ton ha -1 ).…”

Section:  Number Of Panicles Per Plantsupporting

confidence: 93%

The Effect of Biofertilizer of Azola, Phosphate and Nitrogen Fertilizers on Yield and Grain Quality of Rice

Al-Bdairi¹,

kadhem²

2021

QJAS

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A field experiment was carried out during the summer season of 2019 in one of the fields of Al-Tahiniah village -Al-Mahanawiya district which is 36 km away from the Diwaniyah governorate center, to study the effect of Azola, phosphate and nitrogen fertilizers and the interactions between them on yield components, yield and grains quality of the rice grown in water logging conditions. The experiment was arrangement as factorial experiment according to Randomized Complete Blocks Design (RCBD) at three replications. The experiment included three factors, the first factor included the application of Azolla (Azolla pinnata L.) at 20 tons ha -1 and the control treatment (without application of Azolla), while the second factor included application three levels of phosphate fertilizer (21, 42 and 84 kg P ha -1 ) as well as the control treatment (without application of phosphate fertilizer), whereas the third factor included application two levels of nitrogen fertilizer (92 and 184 kg N ha -1 ) as well as the control treatment (without application of nitrogen fertilizer). The results showed that the application of Azolla pinnata L. achieving the highest results of the number of panicles per plants, number of grains per panicle and grain yield by 30.30, 6.37 and 7.80% respectively compared with control treatment that achieved the lowest results for all traits respectively. Also, the application of phosphate fertilizer at half recommended amount (42 kg P ha -1 ) was significantly superior and gave the highest results of the number of panicles per plant, number of grains per panicle and grain yield with a significant increase of 35.29, 4.76 and 7.55 respectively compared with control treatment. In addition to, the application of nitrogen fertilizer at the recommended amount (184 kg N ha -1 ) had the highest results of the number of panicles per plant and number of grains per panicles by 48.29 and 5.75% respectively, without significant difference on the application of nitrogen fertilizer at half the recommended amount (92 kg N ha -1 ) which had the highest mean of the grain yield by 4.94% compared with control treatment which had the lowest results for all traits respectively. The interaction between the application of Azola and the levels of phosphate fertilizer, application of Azola and the levels of nitrogen fertilizer, application of phosphate and nitrogen fertilizers as well as the tri-interaction between three factors had significant effect in all the studied traits except the weight of 1000 grains. We can concluded that the application of Azolla pinnata L. reduced the amounts of phosphate and nitrogen fertilizer by 50% of Recommended amounts and led to improvement the yield and yield components of rice in addition to grain rice quality.

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Section:  Number Of Panicles Per Plantsupporting

confidence: 93%

The Effect of Biofertilizer of Azola, Phosphate and Nitrogen Fertilizers on Yield and Grain Quality of Rice

Al-Bdairi¹,

kadhem²

2021

QJAS

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“…N-fixing BGA and Azolla have been shown to be the most important in maintaining and improving the productivity of rice fields. Azolla is a free-floating water fern that floats in the water and fixes atmospheric N because of its association with the N fixing cyanobacterium Anabaena (Singh et al 2018). An Azolla-Anabaena system is ideal for the cultivation of rice under tropical conditions because of its ability to fix atmospheric N and capacity to multiply at faster rates (Asghar et al 2018).…”

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confidence: 99%

mentioning

confidence: 99%

Temporal soil fertility with organic nitrogen sources in acidic soil of Meghalaya

Singh

SANJAY-SWAMI

2022

Indian J Agri Sci

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A field experiment was conducted at CAU, Umiam, Meghalaya during kharif 2017 to investigate the effect of nitrogen application through urea and Azolla on temporal soil fertility build-up under low land rice cultivation at 30, 60, 90 days after transplanting (DAT) and at maturity in acidic soil. The experiment consists of six treatments with and without Azolla incorporation laid out in RBD with four replications. The application of 60 kg N/ha through urea along with Azolla incorporation @16000 kg/ha (T6) recorded highest available N (289.98 kg/ha) after harvest which was significantly superior over control (227.45 kg/ ha) with 9.1% increase. Similarly, this treatment recorded highest available P, K and OC i.e. 20.6, 192.3, 2.1 kg/ha after harvest followed by T5 and T2. Further, it was also observed that available P, K and OC in T6 were statistically significant over T4 whereas T5 was significant over T3 with respect to advancement in crop age.

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Effect of Nitrogen Application through Urea and Azolla on Growth and Biological Yield of Rice (Oryza sativa L.) in Acidic Soil of Meghalaya

Cited by 2 publications

References 6 publications

The Effect of Biofertilizer of Azola, Phosphate and Nitrogen Fertilizers on Yield and Grain Quality of Rice

The Effect of Biofertilizer of Azola, Phosphate and Nitrogen Fertilizers on Yield and Grain Quality of Rice

Temporal soil fertility with organic nitrogen sources in acidic soil of Meghalaya

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