Showing papers on "Sesbania rostrata published in 2014"

Influence of organic and inorganic sources of nutrients on growth and yield of rice in Tarai region of Uttarakhand

Abstract: The present paper deals with the effect of organic and inorganic sources of nutrient on growth and yield of rice in rice-wheat cropping system. The field experiment was conducted at the Norman E.Borlaug Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand, India on mollisol. Green manuring of Sesbania rostrata (SR) (42.8 t/ha green fresh biomass at 60 days stage) with FYM (5 t/ha) produced significantly higher grain yield (6.5 t/ha) than other treatments except FYM 10 t, N 180 P 60 K 40 and N 200 P 60 K 40 . These treatments also produced significantly higher biological yield than recommended dose of fertilizer (N 120 P 60 K 40 ). The different treatments were found to have significant bearing effect on height and dry matter accumulation. Dry matter accumulation at maximum tillering stage was highest with FYM + SR and significantly higher than all treatments except SA + N 0 P 60 K 40 and N 200 P 60 K 40 . The significant result were showed by the use of organic sources i.e. Sesbania rostrata green manuring with FYM 5 t, FYM 10 t and integrated use of N 120 P 60 K 40 + straw burned and SA + N 0 P 60 K 40 in rice in intensive rice-wheat cropping system.

Impact of Fertilizers on the Seed Quality of Aromatic Rice

Abstract: This experiment was conducted in field and laboratory to evaluate the effect of fertilizer application doses in mother plant plots on seed viability, germination and vigor (seedling length) of aromatic rice. The aromatic rice varieties Kataribhog, Badshabhog and BRRI dhan37 were grown with five fertilizer treatments viz., control (no fertilizer), recommended NPKSZn chemical fertilizers, cow dung 5 t/ha, green manure (Sesbania rostrata) 10 t/ha and recommended NPKSZn chemical fertilizers with green manure (Sesbania rostrata) 5 t/ha. Seed quality parameters viability, germination and vigor were determined after six months of storage period. Results from tests in the laboratory showed that viability, germination, vigor of aromatic rice seeds were affected by applications of different fertilizer doses in mother plant field, variety and interaction of variety & fertilizer. All the fertilizer treatments except recommended NPKSZn chemical fertilizer dose kept an acceptable level of germination percentage (>80%) but without fertilizer treatment shows better performance in respect of viability, germination and seedling length. Local aromatic rice varieties Kataribhog and Badshabhog performed better than modern aromatic rice variety BRRI dhan37.

Efektifitas beberapa jenis bahan organik terhadap peningkatan kesuburan tanah dan hasil padi

Abstract: Rice continuous planting without additional biomass application decreases soil fertility and nutrient stability in the soil. Different kind of legumes crops in the tropic is one of possibility can used an organic fertilizer. The aims of this study was to evaluate legume crops as organic matter, and kind of legume crop potentially has high nutrient in the soil after rice harvest and be continue used by following crops. To evaluate additional organic matters to increased yield of rice. The study was conducted from July to November 2013 at Amadanom village, sub district of Dampit and Malang district. Split plot design was used with three (3) replication and two (2) factor. Main plot consist of N0 (no addition an organic fertilizer), N1 (N an organic fertilizer 30 kg/ha), N2 (N an organic fertilizer 60 kg/ha). Sub plot additional organic matters 20 t/ha consist of : B1 (biomass of Crotalaria juncea L.), B2 (biomass of Sesbania rostrata) and B3 (biomass of Tithonia diversifolia). The result showed that additional biomass Sesbania rostrata and N an organic fertilizer 30 kg/ha increased yield by 104,98%. The high contribution on nutrient content in the soil and application of biomass Sesbania rostrata. It was concluded that organic matter of Sesbania rostrata was effective as organic fertilizer to increased soil fertility and rice yield

Status of organic carbon and total nitrogen under green manure and varying nitrogen levels in rice-wheat cropping system

Abstract: Significant increase in soil organic carbon and total nitrogen was observed by using bio-organic sources and bio-fertilizers in rice-wheat cropping system during the present investigations. It was observed that standard INM packages for paddy (N60 + GM + BGA) and wheat (N90 + Azotobactor) enhanced the paddy and wheat yield by 20 and 10 per cent respectively as compared to recommended doses (120 kg/ha) of chemical N. On an average most promising INM doses reflected positive nitrogen balance in soil after harvest of last rotation as +0.03 per cent organic carbon and +0.004 per cent total N with Sesbania rostrata as green manure and recommended dose N 120 kg/ha showed negative N balance as -0.02 per cent organic carbon and -0.001 per cent total N. In case of wheat Azotobactor with 90 kg N/ha gave sustainable nitrogen balance as +0.05 per cent organic carbon and +0.004 per cent total N as compared to recommended dose of N 120 kg/ha which showed negative nitrogen balance as -0.02 per cent organic carbon and -0.002 per cent total N. Application of biofertilizers and green manure alone or in combination with chemical N provided sustainable nitrogen balance after harvest of rice-wheat crop.