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

This study evaluated the effect of using the green manure Sesbania rostrata as a preceding crop on the agricultural yield of rice. The rice was cultivated with two levels of mineral fertilizers (50 and 100% of the economical optimum level of N-P-K). Additionally, the contribution to the nitrogen nutrition of rice from the green manure previously incorporated into the soil was studied in pots using 15N stable isotope analysis. The results indicated that the Sesbania rostrata incorporation allowed the paddy rice yield to increase by at least 1 Mg ha-1 and to save 50% of the mineral fertilization employed, during two consecutive harvests. The 15N isotope analysis showed that although the N accumulation by the crop was significantly stimulated, the green manure N did not contribute directly to the growth of the rice plants, at least during their first cycle. Nevertheless, it is expected that in the medium term, the organic N derived from this green manure would restore the soil mineralized N extracted by the rice crop, thereby balancing the N losses in the system and even improving the soil nitrogen fertility.

Download Full-text

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

Climate Change Management - Climate Change, Hazards and Adaptation Options ◽

10.1007/978-3-030-37425-9_46 ◽

2020 ◽

pp. 911-924 ◽

Cited By ~ 2

Author(s):

M. Khais Prayoga ◽

Neni Rostini ◽

Tualar Simarmata ◽

Mieke Rochimi Setiawati ◽

Silke Stoeber ◽

...

Keyword(s):

Green Manure ◽

Sesbania Rostrata ◽

Rice Farming ◽

Azolla Pinnata

Download Full-text

Effect of phosphorus rate on growth, nodulation and biomass yield of green manure crops

Journal of the Bangladesh Agricultural University ◽

10.3329/jbau.v7i1.4793 ◽

1970 ◽

Vol 7 (1) ◽

pp. 23-28

Author(s):

MYA Pramanik ◽

MAR Sarkar ◽

MS Uddin ◽

GM Faruk

Keyword(s):

Glycine Max ◽

Plant Height ◽

Vigna Unguiculata ◽

Green Manure ◽

Biomass Yield ◽

Growth Period ◽

The Other ◽

Phosphorus Fertilization ◽

Sesbania Rostrata ◽

Green Manure Crops

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

Download Full-text

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

Download Full-text