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Search Results: 1 - 10 of 4010 matches for " Green Manure "
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Physiological Quality and Seed Production of Corn and Fabaceae in Monoculture and Intercropping  [PDF]
Anna C. S. de Oliveira, Fábio Cunha Coelho, Henrique Duarte Vieira, Jocarla Ambrosim Crevelari, áurea Izabel Aguiar Fonseca e Souza, Tiago Massi Ferraz, Ant?nia Alice Costa Rodrigues
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.811175
Abstract: The aim of this study was to evaluate the physiological quality and seed production of Fabaceae and corn in monoculture and intercropping in areas cropped under different management. The following treatments were evaluated: corn + NPK + weed control; corn + weed control; corn + NPK; corn + crotalaria; corn + jack bean. Intercropping raised the average number of corn ears of corn and the seed IVG Weed control positively influenced the final stand and average number of ears. NPK fertilization on corn sowing positively influenced the seed electrical conductivity. The yield of corn plants intercropped with crotalaria and jack bean was statistically similar. However, their absolute values should be considered for economic purposes. Corn seeds derived from intercropping with crotalaria were more effective compared with intercropping with jack bean. Crotalaria and jack bean seeds when intercropped with corn have high production, germination and vigor (IVG and emergence).
Nota Técnica: Comportamiento productivo de la morera sometida a dos alternativas de fertilización orgánica
Pentón,Gertrudis;
Pastos y Forrajes , 2007,
Abstract: a study was carried out in areas of the eepf “indio hatuey”, with the objective of evaluating the agronomic performance of mulberry (morus alba l. var. acorazonada) before two alternatives of organic fertilization. the soil of the site is hydrated ferralitic red; rainfall oscillated between 1 000 and 1 145 mm per year. in the establishment cutting highly significant variations were obtained among the treatments: control without fertilization, association mulberry-albizia lebbeck as green manure vs mulberry fertilized with organic matter (41,6; 45,0 and 72,4 g of edible dry biomass per individual, respectively). nevertheless, in the rainy season of the second year of exploitation, the cumulative production did not show significant variations between the association and the fertilized mulberry (88,8 and 86,7 g edible dry biomass per individual), although it did with regards to the control which produced only 40,7 g. the contribution of organic matter to the soil during the establishment of the mulberry plantations and/or the association of a. lebbeck managed as green manure provide a significant advantage in the productive response of the forage shrub, and the second alternative stood out for its endogenous character.
Avalia??o da produtividade de fitomassa e acúmulo de N, P e K em leguminosas arbóreas no sistema de aléias, em Campos dos Goytacazes, RJ
Queiroz, Luciano Rodrigues;Coelho, Fábio Cunha;Barroso, Deborah Guerra;Queiroz, Valéria Aparecida Vieira;
Revista árvore , 2007, DOI: 10.1590/S0100-67622007000300003
Abstract: the objective of this study was to evaluate the shoot phytomass and shrub legumes n, p and k accumulation in agroforestry system (alley cropping system) and study the effect of p fertilization. two field experiments were carried out - without and with p application - for two years: 2004 and 2005, using shrub legumes in campos dos goytacazes - rj - brazil. the treatments consisted of alley cropping system with the species: albizia lebbeck (l.) benth., peltophorum dubium (spreng.) taub., leucaena leucocephala (lam.) r. de wit., cajanus cajan (l.) millsp., sesbania virgata (cav.) pers., mimosa caesalpiniaefolia benth.e gliricidia sepium (jacq) pers.. eight months after the plantation, the legumes were pruned at 1.5-m height, and the shoot phytomass was weighed. stems with diameter higher than 1.5 cm were not considered in the weighed phytomass. the dry matter obtained in the pruning was expressed as kg ha -1 year -1. samples from the pruning were used to determine the dry phytomass and n, p and k contents. new pruning was carried out eighty days after the first cut. in the first crop year, cajanus cajan (l.) millsp. produced the highest dry phytomass and accumulated the highest amounts of n, p and k; while in the second year, in the experiment with p fertilization, cajanus cajan (l.) millsp., peltophorum dubium (spreng.) stend. and leucaena leucocephala (lam.) de wit. produced the highest dry phytomass, and leucaena accumulated the highest amount of k in shoot phytomass. phytomass productivity was higher when some legumes received phosphorus application.
Improvement of baby corn yield by using green manure
Chutichudet, P.
Songklanakarin Journal of Science and Technology , 2002,
Abstract: Suitable rates of compost and chemical fertilizers to improve baby corn yield have been reported ; information on an appropriate type of green manure to increase its yield is rather limited. Use of green manure showed from a farmer with a practicable method in actual fields, which is not expensive and can be adjusted to the physical and chemical characteristics of soil. Therefore , the major objective of this experiment was to find a way to improve the yield of baby corn through the use of five types of green manure treatments and control, comprising no green manure (control), mung bean (Vigna radiata L.), hyacinth bean (Lablab purpureus L.), sword bean (Canavaria ensiformis L.), copwea (Vigna unguiculata L.) and sesbania (Sesbania rostrata Brem.). The treatments were arranged in a randomized complete block design with four replications on June 2000, tested at the experimental field of Agricultural Technology Department, Technology Faculty, Mahasarakham University, Kantharawichai District, Maha Sarakham Province. The results indicated that sesbania used as green manure resulted in a fresh weight content higher than the others, and promoted plant height, plant diameter, leaf area, ear number / plant, yield both before and after peeling / rai, ear weight both before and after peeling / ear, ear diameter after peeling and standard yield content / rai consequently. In addition, the ear color after peeling was satisfactory for consumers. Yield contents / rai grown on the other sources of green manures were significantly lower (P < 0.01)
Synergic Effect of Mucuna pruriens var. Utilis (Fabaceae) and Pontoscolex corethrurus (Oligochaeta, Glossoscolecidae) on the Growth of Quercus insignis (Fagaceae) Seedlings, a Native Species of the Mexican Cloud Forest  [PDF]
María L. Avenda?o-Yá?ez, ángel I. Ortiz-Ceballos, Lázaro R. Sánchez-Velásquez, María R. Pineda-López, Jorge A. Meave
Open Journal of Forestry (OJF) , 2014, DOI: 10.4236/ojf.2014.41001
Abstract:

Propagation of native species in local nurseries is an important activity in reforestation and forest restoration programs. A requisite for successful plantation is that nursery produced plants are of a size and quality that allows optimal establishment under field conditions. Manipulation of edaphic processes through the combined use of the earthworm Pontoscolex corethrurus, Mucuna pruriens and inorganic fertilizers may promote faster biomass gain. This study assessed the activity of P. corethrurus, its association with M. pruriens (green manure) and inorganic fertilizers, on the growth of Quercus insignis seedlings under greenhouse conditions. Measured variables were basal diameter, height, biomass and foliar nitrogen content. Growth rates of basal diameter (F = 5.33;

Maize Crop N Uptake from Organic Material of Gliricidia sepium Coinoculated with Rhizobium and Arbuscular Mycorrhizal Fungus in Sub-Saharian Africa Sandy Soil  [PDF]
Adama Diouf, Malick Ndiaye, Mame Arama Fall-Ndiaye, Tahir Abdoulaye Diop
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.83029
Abstract: The effect of green manure of gliricidia (Gliricidia sepium (Jacq.) Walp) leguminous plants applied for cereal maize cultivation and N uptake by cereal were investigated and analyzed in relation to influence of dual inoculation of gliricidia with microbial symbionts. Two pot experiments were conducted in greenhouse. The first trial was set up to enhance growth of gliricidia with exotic and indigenous rhizobial strains and arbuscular mycorrhizal fungus and the second to determine the effect of gliricidia organic material on maize growth. Direct 15N-labelling techniques were used to estimate N-fixed by gliricidia plant and N uptake of maize cereal crop from green manuring was calculated. Growth of gliricidia trees estimated by aboveground biomass production and N fixed were positively affected by dual inoculations. This study showed that shoot dry weight and N accumulation of maize cultivated under gliricidia green manure were influenced by its application and indirectly by microbial treatments. The N recovery by the maize accounted 17.32% to 26.52% of N applied as gliricidia organic material. Gliricidia green manure N accumulation and release, and afterward microbial inoculations were substantially determining on maize crop N uptake and growth in sandy soil of Sub-Saharian Africa.
Mothbean: A Potential Summer Crop for the Southern Great Plains  [PDF]
Gurjinder S. Baath, Brian K. Northup, Prasanna H. Gowda, Kenneth E. Turner, Alex C. Rocateli
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.97101
Abstract:
Low nutritive value of available warm-season grasses during July through September limits the production of yearling stocker cattle in the southern Great Plains (SGP). There has been a continual exploration of species with the capacity to provide high quality forage during summer. Mothbean (Vigna aconitifolia [Jacq.] Marechal), a short-duration, drought tolerant crop is a promising choice for the SGP. This preliminary study evaluated the potential of mothbean as a summer crop for forage, grain or green manure. Results of this study with 10 mothbean lines from a range of geographic locations suggested that crop could be harvested 100 days after planting with dry biomass yield range of 7.3 - 18.1 Mg·ha-1. Mothbean forage contained 10.8% - 14.6% crude protein (CP), 32.0% - 41.7% neutral detergent fiber (NDF), 20.7% - 29.6% acid detergent fiber (ADF), and 73% - 84% in vitro true digestibility (IVTD) at maturity. Grain yield of the 10 mothbean lines varied from 91 to 1040 kg·ha-1. The 10 tested lines generated a high amount of nitrogen (N) rich biomass at maturity with total accumulated N of 163 - 316 kg·ha-1 and a C:N ratio of 16:1 to 22:1. Overall, performance indicators suggested that mothbean has considerable potential as an alternative crop for production of forage, grain, or green manure when grown as summer crop in rotation with winter wheat. Future research should focus on evaluating mothbean within different crop settings to define its capacity as green manure or summer forage to support production of stocker cattle in the SGP.
Contribution of Rice Plants and Cover Crop Biomass Amended Soil on Methane Emission  [PDF]
Md Mozammel Haque, Jatish Chandra Biswas, Muhammad Ashraful Alam, Pil Joo Kim
American Journal of Climate Change (AJCC) , 2018, DOI: 10.4236/ajcc.2018.73029
Abstract: Rice plant and soil are playing vital role for produce of methane (CH4) emission from flooded rice soil. Contribution of rice plants and cover crop biomass amended soil on methane emission has not been yet studied under different cover crop biomass incorporated in paddy fields. Closed-chamber method was used to estimate CH4 emission rates during rice cultivation under soil plus rice plants and soil alone condition. Soil plus rice plants chambers 62 × 62 × 112 cm3 and soil alone chambers 20 × 20 cm2 were placed at the same time during rice cultivation (0 days after rice transplanting). Therefore, to evaluate the contribution of soil plus rice plants and soil alone on methane (CH4) emission under different rates of cover crop biomass incorporated soil during rice cultivation. Methane emission from soil plus rice plants increased up to 53 days after transplanting (DAT) and then it’s decreased and continued till harvesting. It was found that ca. 47% - 52% CH4 was mediated by rice plants and ca. 48% - 53% through rice soil alone under 12 Mg·ha-1 cover crop biomass incorporated treated plots. Whereas, only ca. 9% - 10% CH4 emission was mediated by rice plants and ca. 90% - 91% by rice soil alone when 0 and 3 Mg·ha-1 cover crop biomass was incorporated. Therefore, it could be concluded that rice soil alone was more influenced for CH4 emission than rice plants in paddy fields.
Growth, Nutrient Content and SPAD Value of Corn in Monoculture and in Intercropping  [PDF]
Anna Christina Sanazário de Oliveira, Fábio Cunha Coelho, Henrique Duarte Vieira, Jocarla Ambrosim Crevelari, Raquel Fialho Rubim
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.518288
Abstract:

The objective of this study was to evaluate the growth, the nutrition, and the intensity of the green color in corn plants in monoculture and in intercropping with Mucuna aterrima, Crotalaria juncea, and Canavalia ensiformis, cultivated with different handlings. In general, corn plants in monoculture demonstrated greater growth and greater SPAD value in the first evaluation, despite presenting lower tenor of phosphorus in the leaves when related to the corn in intercropping. The weed helps in the growth of the corn plant and increases the SPAD value during flowering. The monoculture NPK (Nitrogen, Phosphorus and Potassium) fertilization promoted higher values in corn plant growth, as well as a greater SPAD value, at 30 d.a.e., of the plants. The NPK-fertilized corn plants showed a greater tenor of sulphur and a lower tenor of molybdenum. The corn in intercropping with M. aterrima resulted in smaller plants at 70 d.a.e. It also presented a greater tenor of molybdenum and lower tenor of nickel when compared to intercroppings with C. juncea and with C. ensiformis. The corn plants in a intercropping with Crotalaria juncea presented higher growth at 30 and 70 d.a.e. and greater tenors of molybdenum when compared to the plants in intercropping with C. ensiformis.

Preparo convencional e cultivo mínimo do solo na cultura de mandioca em condi??es de aduba??o verde com ervilhaca e aveia preta
Gabriel Filho, Antonio;Pessoa, Antonio Carlos dos Santos;Strohhaecker, Laércio;Helmich, Jaime José;
Ciência Rural , 2000, DOI: 10.1590/S0103-84782000000600005
Abstract: soil tillage for cassava cropping is tradicionally executed by a number of rowing and tillage which may result in alteration of the physical and chemical soil properties. the use of plants for green cover manure and the use of minimum tillage may contribute to reduction of soil erosion and to facilitate manual harvest. an experiment in eutrophic oxisol, located in marechal candido rondon country state of paraná, brazil, was carried out to collect information on the physical soil properties, harvest effort strength and cassava productivity. experimental design was composed by eight treatments with four repetitions on a 2x4 factorial. were used two soil tillage (conventional and minimum) and four soil cover types: common vetch (vicia sativa), black oat (avena strigosa), common vetch plus black oat and bare soil. the results showed that soil density and resistance to penetration in the 0-10cm layer were higher under conventional than under minimum tillage. there were no differences for cassava harvest effort and cassava productivity between soil tillage treatments as well as among types of soil cover. no significant interaction was detected also. it is hypotesized that the results obtained are due to the fact that soil used did not have compaction, the soil had a high degree of natural fertility and there was no water stress during the experiment. consequenthy, minimum tillage may substitute conventional tillage and reduce costs for cassava cropping.
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