geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Grain yield responses in rice to eight tropical green manures


, : Grain yield responses in rice to eight tropical green manures. Tropical Agriculture 69(2): 133-136

Eight legume species were evaluated as substitutes for fertilizer N for wet season (WS) rice in the Philippines. The above-ground biomass of Sesbania cannabina accumulated mean maximum N (84-199 kg ha-1) and indigo accumulated the least N (8-84 kg ha-1) in 30-60 days. Mungbean and cowpea, which produced grain and crop residue, are potential dual-purpose grain and green manure species. Regardless of species, mean rice grain yield from green manures was 4.0 t ha-1 in 1984 and 4.6 t ha-1 in 1985, comparable with 4.1 t ha-1 from 50 kg fertilizer N in 1984 and 4.7 t ha-1 from 105 kg fertilizer N ha-1 in 1985. In both years, 60-day Sesbania and Crotalaria accumulated N in excess of the rice crop requirement. Residual effects from green manures on dry season (DS) rice were not significant in 1984 but were significant from Sesbania green manure in 1985. Soil organic C and total N were also significantly higher after Sesbania and Crotalaria than after other green manures of fertilizer N treatments.

US$29.90


Other references

Grichting, W.L., 1983: Controlling alcohol abuse in Australia: from treatment to prevention. British Journal of Addiction 78(1): 37-50

Albrecht, M.; Liu, Y.; Zhu, S.S.; Schalley, C.A.; Fröhlich, R., 2009: Self-assembly of heterodinuclear triple-stranded helicates: control by coordination number and charge. Acylhydrazones of 2,3-dihydroxybenzaldehyde are easily accessible and afford heterodinuclear helicates; the self-assembly is specific when the resulting coordination compounds are neutral in charge.

Liedholm, L.J.; Gudjonsson, O., 1992: Cardiac arrest due to partial epileptic seizures. The clinical distinction between cardiovascular and epileptic causes of loss of consciousness is sometimes difficult, but becomes more complicated when a primary epileptic seizure secondarily causes a cardiac arrest. This has been reported previou...

Hurst, R.; Korytowski, W.; Kriska, T.; Esworthy, R.S.even; Chu, F.F.ng; Girotti, A.W., 2001: Hyperresistance to cholesterol hydroperoxide-induced peroxidative injury and apoptotic death in a tumor cell line that overexpresses glutathione peroxidase isotype-4. The selenoenzyme phospholipid hydroperoxide glutathione peroxidase (PHGPX; GPX4) plays a key role in eukaryotic defense against potentially lethal peroxidative injury and also regulation of physiological peroxide tone. In this work we focused on t...

Bentley, C.L.; Kang, M.; Maddar, F.M.; Li, F.; Walker, M.; Zhang, J.; Unwin, P.R., 2017: Electrochemical maps and movies of the hydrogen evolution reaction on natural crystals of molybdenite (MoS 2 ): basal ivs. edge plane activity. Two dimensional (2D) semiconductor materials, such as molybdenum disulfide (MoS<sub>2</sub>) have attracted considerable interest in a range of chemical and electrochemical applications, for example, as an abundant and low-cost alterna...

Dolliner, P.; Brammen, L.; Graf, S.; Huelsmann, M.; Stiebellehner, L.; Gleiss, A.; Ubl, P.; Steurer, G., 2014: Portable recording for detecting sleep disorder breathing in patients under the care of a heart failure clinic. Sleep disordered breathing (SDB) has important clinical implications in patients with congestive heart failure (CHF). We performed portable recording in unselected CHF patients on contemporary therapy. Data on the interactions of SDB in patients s...

Humphries, J.A.; Walker, A.R.; Timmis, J.N.; Orford, S.J., 2005: Two WD-repeat genes from cotton are functional homologues of the Arabidopsis thaliana TRANSPARENT TESTA GLABRA1 (TTG1) gene. Cotton fibres are single, highly elongated cells derived from the outer epidermis of ovules, and are developmentally similar to the trichomes of Arabidopsis thaliana. To identify genes involved in the molecular control of cotton fibre initiation,...

Priedkalns, J.; Weber, A.F., 1968: The succinic dehydrogenase and lipid content of follicular and luteal cells of the bovine ovary. Strong succinic dehydrogenase reactivity and a low lipid content in follicular and luteal cells occurred during periods of reported maximal steroid synthesis and maximal cell growth.

Simpson, G.W., 1932: Spraying and Dusting Experiments for the Control of Potato Aphids. A series of experiments was conducted on Long Island during 1930-31 to determine the relative toxicities of various mixtures containing nicotine sulfate and the mechanical efficiency of spraying and dusting practices against Aphids on potatoes. In...

Hartnagel, U.; Balbinot, D.; Jux, N.; Hirsch, A., 2006: Electrophoresis of electrostatically assembled fullerene-porphyrin conjugates. The formation of electrostatically coupled assemblies of a series of anionic dendritic fullerene derivatives and cationic porphyrins in buffered aqueous media was studied with gel electrophoresis. Of central interest in these investigations was th...