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Registros recuperados: 7
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15N-labeled nitrogen from green manure and ammonium sulfate utilization by the sugarcane ratoon Scientia Agricola
Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Schammass,Eliana Aparecida; Muraoka,Takashi; Rossi,Fabrício.
Legumes as green manure are alternative sources of nitrogen (N) for crops and can supplement or even replace mineral nitrogen fertilization due to their potential for biological nitrogen fixation (BNF). The utilization of nitrogen by sugarcane (Saccharum spp.) fertilized with sunn hemp (Crotalaria juncea L.) and ammonium sulfate (AS) was evaluated using the 15N tracer technique. N was added at the rate of 196 and 70 kg ha-1 as 15Nlabeled sunn hemp green manure (SH) and as ammonium sulfate (AS), respectively. Treatments were: (i) Control; (ii) AS15N; (iii) SH15N + AS; (iv) SH15N; and (v) AS15N + SH. Sugarcane was cultivated for five years and was harvested three times. 15N recovery was evaluated in the two first harvests. In the sum of the three harvests,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp.; Brazil; Sunn hemp; Isotope technique.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300014
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Selectivity of Herbicides Bentazon and Nicosulfuron for Crotalaria juncea Intercropped with Maize Culture Planta Daninha
NOGUEIRA,C.H.P.; CORREIA,N.M..
ABSTRACT The objective was to study the selectivity of herbicides bentazon and nicosulfuron, alone and in a mixture, to Crotalaria juncea, when established in intercropping with maize, as well as weed control and maize development in this production system. Two experiments were conducted in the field, in late harvest and in harvest periods. The experimental design was a randomized block, with 14 treatments and four replicates. Eight treatments with herbicides bentazon (720 and 960 g a.i. ha-1), nicosulfuron (16 and 48 g a.i. ha-1) and bentazon plus nicosulfuron (720 + 16; 720 + 48; 960 + 16; 960 + 48 g a.i. ha-1) were studied, besides six controls (single crop maize and sunn hemp, with and without weed control, intercropped maize and sunn hemp, with and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Green manure; Sunn hemp; Phytointoxication; Interference; Simultaneously sowing.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400747
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Soil uses during the sugarcane fallow period: influence on soil chemical and physical properties and on sugarcane productivity Rev. Bras. Ciênc. Solo
Silva,Roniram Pereira da; Fernandes,Carolina.
The planting of diversified crops during the sugarcane fallow period can improve the chemical and physical properties and increase the production potential of the soil for the next sugarcane cycle. The primary purpose of this study was to assess the influence of various soil uses during the sugarcane fallow period on soil chemical and physical properties and productivity after the first sugarcane harvest. The experiment was conducted in two areas located in Jaboticabal, São Paulo State, Brazil (21º 14' 05'' S, 48º 17' 09'' W) with two different soil types, namely: an eutroferric Red Latosol (RLe) with high-clay texture (clay content = 680 g kg-1) and an acric Red Latosol (RLa) with clayey texture (clay content = 440 g kg-1). A randomized block design with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crop diversification; Soybean; Millet; Sunn hemp.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200022
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Soil uses in the sugarcane fallow period to improve chemical and physical properties of two latosols (oxisols) Rev. Bras. Ciênc. Solo
Fernandes,Carolina; Corá,José Eduardo; Marcelo,Adolfo Valente.
Sugarcane production should be integrated with crop diversification with a view to competitive and sustainable results in economic, social and environmental aspects. The purpose of this study was to assess the influence of different soil uses during the sugarcane fallow period on the chemical and physical properties of eutroferric Red Latosol - LVef (Oxisol) and Acric Latosol - LVw (Acric Oxisol), in Jaboticabal, São Paulo State, Brazil (21º14'05'' S, 48º17'09'' W, 600 m asl). A randomized block design was used with five replications and four treatments, consisting of different soil uses (crops) in the sugarcane fallow period: soybean only, soybean/fallow/soybean, soybean/millet/soybean, and soybean/sunn hemp/soybean. After two soybean crops, the LVef...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soybean; Millet; Sunn hemp; Soil management; Cover crops.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100029
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Utilization of nitrogen from green manure and mineral fertilizer by sugarcane Scientia Agricola
Ambrosano,Edmilson José; Trivelin,Paulo Cesar Ocheuze; Cantarella,Heitor; Ambrosano,Gláucia Maria Bovi; Schammass,Eliana Aparecida; Guirado,Nivaldo; Rossi,Fabrício; Mendes,Paulo Cesar Doimo; Muraoka,Takashi.
Given their potential for biological nitrogen fixation, legumes used as green manure are an alternative source of nitrogen to crops, and can supplement or even replace mineral nitrogen fertilization. The utilization of nitrogen by sugarcane (Saccharum spp.) fertilized with sunn hemp (Crotalaria juncea L.) and ammonium sulphate (AS) was evaluated using the 15N tracer technique. Amounts of 195.8 kg and 70 kg N per hectare, respectively, of sunn hemp and AS were added in the following treatments: without green manure and without AS; without green manure, with AS -15N; with green manure-15N and with AS; with green manure-15N, without AS; with green manure and with AS-15N. Four samples from the leaves +3 were collected and 2 m of the sugar cane row were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum spp; Sunn hemp; 15N; Isotope technique.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000600004
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การพัฒนาและการสุกแก่ของเมล็ดพันธุ์ปอเทือง Thai Agricultural
Pittaya Promsuk; Quanchit Santipracha; Wullop Santipracha.
Study of sunn hemp seed development and maturation was studied at the Department of Plant Science, Faculty of Natural Resources, Prince of Songkla University, Hat Yai campus, Hat Yai, Songkhla, during March-June, 2008. The blooming flowers were tagged to indicate the date of flowering. Pods at 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43 and 46 days after flowering were harvested to investigate pod color, seed color and seed quality. The results showed that the sunn hemp had 6 developmental stages of pod color which were green, yellow-green, light grey-green, dark greygreen, grey-brown and grey-brown-black at 10-16, 19-28, 31, 34, 37-40 and 43-46 days after flowering, respectively. The sunn hemp seeds were capable of germination at approximately 25 days...
Tipo: Collection Palavras-chave: Sunn hemp; Seed development; Physiological maturity; Seed quality; ปอเทือง; การพัฒนาของเมล็ดพันธุ์; การสุกแก่ทางสรีรวิทยา; คุณภาพเมล็ดพันธุ์.
Ano: 2010 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5232
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ผลของวิธีการเตรียมดินและวัสดุอินทรีย์ต่อการเจริญเติบโตและผลผลิตข้าว Thai Agricultural
Pornthip Srimongkol; Suphasit Sithapanich; Wimolnan Kanket.
The experiment was conducted to determine the effect of nutrient management and no-tillage system on rice growth and yield of rice. Experimental design was a randomized complete block with 4 replicates comprised 5 treatments: 1) Control (Conventional tillage and recommended fertilizer application) 2) Conventional tillage with sunn hemp incorporation 3) Conventional tillage with rice straw incorporation 4) No tillage with sunn hempmulching and 5) No tillage with rice straw mulching. All treatments received the same rate of N at 18.6 kg N per rai. The result showed that conventional tillage with sunn hemp incorporation had highest rice dry weight and was significantly different as compare to conventional tillage (control). Also, the conventional tillage...
Tipo: PhysicalObject Palavras-chave: Tillage; Nutrient management; Sunn hemp; Rice straw; การไถพรวน; การจัดการธาตุอาหาร; ปอเทือง; ฟางข้าว; วัสดุอินทรีย์; การเจริญเติบโต; ผลผลิต.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5434
Registros recuperados: 7
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