Is Green Manure (Azolla pinnata and Sesbania rostrata) a Climate-Resilient Strategy for Rice Farming?

The effect of phosphorus rate on plant height, biomass yield and nodulation of green manure crops was investigated. Seven green manure species viz. Sesbania rostrata, Sesbania aculeata, Crotalaria juncea, Vigna unguiculata, Phaseolus mungo, Vigna radiata and Glycine max and three phosphorus rates viz. 18, 27 and 36 kg P ha-1 were used. Plant height was different for each green manure crops during the growth period though phosphorus fertilization had no significant effect on plant height and biomass yield. On the other hand, phosphorus fertilization had significant effect on nodulation of green manure crops. The number of nodules plant-1 increased significantly with the age of the plants up to 60 days after sowing (DAS) and thereafter declined sharply at 75 DAS. The highest number of nodules plant-1 was produced at 36 kg P ha-1 followed by 27 kg P ha-1. The lowest number of nodules plant-1 was produced at 18 kg P ha-1. Keywords: Green manure crops; Phosphorus; Growth; Nodulation; Biomass yield DOI: 10.3329/jbau.v7i1.4793 J. Bangladesh Agril. Univ. 7(1): 23-28, 2009

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Sesbania rostrata green manure and the nitrogen content of rice crop and soil

Soil Biology and Biochemistry ◽

10.1016/0038-0717(83)90127-x ◽

1983 ◽

Vol 15 (1) ◽

pp. 111-113 ◽

Cited By ~ 46

Author(s):

G. Rinaudo ◽

B. Dreyfus ◽

Y. Dommergues

Keyword(s):

Nitrogen Content ◽

Green Manure ◽

Rice Crop ◽

Sesbania Rostrata

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Influence of Green Manuring Crops on Dry Matter Production and Soil Health Improvement

Bangladesh Agronomy Journal ◽

10.3329/baj.v22i1.44929 ◽

2020 ◽

Vol 22 (1) ◽

pp. 39-45

Author(s):

IJ Irin ◽

PK Biswas ◽

MJ Ullah ◽

TS Roy ◽

MA Khan

Keyword(s):

Green Manure ◽

Dry Matter ◽

Nutrient Balance ◽

Health Improvement ◽

Sesbania Rostrata ◽

Green Manures ◽

Green Manuring ◽

Sesbania Aculeata ◽

Positive Balance ◽

The Impact

The field experiment was conducted at the Agronomy farm of Sher-e-Bangla Agricultural University to evaluate the impact of different kind of green manures on soil nutrient balance through adding biomass and N,P and K accumulation. Green manuring crops were incorporated after in situ cultivation and results showed that, the biomass incorporation increased the N production in soil. The biomass from Sesbania rostrata, Sesbania aculeata and Crotalaria juncea gave the higher dry matter and nutrient status. Incorporation of Sesbania rostrata and Sesbania aculeata added more organic matter and nitrogen to the soil after green manure incorporation than the prior soil. However, the improved soil quality was recorded with S. rostrata and S. aculeata followed by C. juncea and V. unguiculata incorporation as compared to control (no green manure) and other green manuring crops. The nutrient balance of soil after incorporation of different green manuring crops specially S. rostrata, S. aculeata and C. juncea showed positive balance of nutrients than other green manures. Bangladesh Agron. J. 2019, 22(1): 39-45

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