In situ roots decompose faster than shoots left on the soil surface under subtropical no-till conditions     

Majid Mahmood Tahir  Sylvie Recous  Celso Aita  Raquel Schmatz  Getúlio Elias Pilecco  Sandro José Giacomini 《Biology and Fertility of Soils》2016,52(6):853-865

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Vegetable oil formulation as biopesticide to control California red scale (<Emphasis Type="Italic">Aonidiella aurantii</Emphasis> Maskell)     

Domenico Rongai  Claudio Cerato  Luca Lazzeri  Sandro Palmieri  Giampiero Patalano 《Journal of pest science》2008,81(4):179-185

During laboratory tests, mineral oil in water emulsion (2%), containing Brassicaceae seed meals (2 g l⁻¹), induced total mortality (100%) among adult female California red scales on detached orange fruits, whereas only 47.5% of insect mortality was observed with the same mineral oil when used alone. These results were partially confirmed by two preliminary field trials. With the aim of improving biodegradability and the environmental impact of the insecticidal formulation, mineral oil was replaced by a vegetable oil without observing any significant variation of the product’s efficacy. In addition, a clear “dose-effect” of meal in mineral and vegetable oil was also demonstrated. The formulation, essentially based on oil, meals and some minor additives, shows the following advantages: (1) high insecticidal activity against an insect pest difficult to control such as Aonidiella aurantii (Maskell); (2) simultaneous control of several pathogens seems to be possible; (3) non-appearance of resistance phenomena in plant pathogens; and finally, (5) absence of phytotoxicity.  相似文献   

Spatial variability of the physical quality of soil from management zones     

de Oliveira  José Francirlei  Mayi  Stanislas  Marchão  Robélio Leandro  Corazza  Edemar Joaquim  Hurtado  Sandro Carmelino  Malaquias  Juaci Vitória  Tavares Filho  João  Brossard  Michel  Guimarães  Maria de Fátima 《Precision Agriculture》2019,20(6):1251-1273

Precision Agriculture - The uniform management of soil, without considering the local soil spatial variability of its properties, may accelerate its degradation process. The objectives of this...  相似文献   

IBR and BVD control: the key to successful herd management     

Makoschey B  Franken P  Mars JM  Dubois E  Schroeder C  Thiry J  Alvarez M  Rypuła K  Cavirani S  Arnaiz I  Houtain JY  Bartak P  Brownlie J  Wolf G  Meyer G  Klees W  Beer M  Moennig V  Thiry E 《Berliner und Münchener tier?rztliche Wochenschrift》2010,123(11-12):519-21, 516-8

Control of IBR and BVD should be possible in Europe. Effective vaccines and reliable tools for monitoring are available. Systematic approach and strict implementation of control measures are essential. Voluntary or mandatory programs are ongoing on regional or national level in a lot of countries. Successful programs put pressure on surrounding regions/countries to initiate control program as well.  相似文献   

Concentrate: forage ratio in the diet of dairy cows does not alter milk physical attributes     

Sandro Charopen Machado  Concepta Margareth McManus  Marcelo Tempel Stumpf  Vivian Fischer 《Tropical animal health and production》2014,46(5):855-859

This study aimed to evaluate the effect of concentrate-to-forage ratio (C:F) on the performance, blood profile, and milk physicochemical characteristics of mid-lactation cows fed a corn silage-based diet. Twenty four Holstein cows, with BW 575?±?70 kg, body condition score (BCS) 3.1?±?0.2, milk yield 18.4?±?3.0 kg, and days in milk (DIM) 121?±?21 were randomly allocated into three treatments with C:F ratios of 35:65, 45:55, and 55:45 on a dry matter (DM) basis. Data was submitted to analyses of variance and regression. Increasing C:F from 35 to 55 % linearly enhanced milk production (22 to 23.6 kg day^?1) and serum urea nitrogen (16.8 to 19.6 mg/dL), while it linearly reduced lactose and fat in milk (4.8 to 4.6 %; 3.9 to 3.6 %, respectively). Body weight, BCS, milk acidity, ethanol stability, coagulation time, and milk and blood mineral contents did not differ among treatments. During the last period of measurements, increased C:F reduced urinary pH and milk urea nitrogen. Changes of concentrate-to-forage proportion from 35 to 55 % increased milk yield, altered chemical composition without changing BW, BCS, acidity, stability, and mineral content of milk and blood attributes.  相似文献   

Food insecurity, childhood illness and maternal emotional distress in Ethiopia     

Anderson LC  Tegegn A  Tessema F  Galea S  Hadley C 《Public health nutrition》2012,15(4):648-655

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Sequence analysis of rDNA intergenic spacer region (IGS) as a tool for phylogenetic studies in Trichoderma spp.          下载免费PDF全文

Mercatelli Elisabetta　 Pecchia Susanna　 Ciliegi Sandro　 Vannacci Giovanni 《浙江大学学报(农业与生命科学版)》2004,30(4):460-461

Different from ribosomal genes, which contain highly conserved sequences that are detected in all organisms, the intergenic spacer of rDNA (IGS) appears to be the most rapidly-evolving spacer region. For this reason we tested this region for phylogenetic studies. This report focuses on the study of IGS sequences of isolates belonging to Trichoderma section (T. viride, T. koningii, T. hamatum, T. erinaceus, T. asperellum) and Pachybasium section (T. harzianum, T. crassum, T. fascicu…  相似文献   

Changes in bacterial and archaeal community assemblages along an ombrotrophic peat bog profile     

Puglisi  Edoardo  Zaccone  Claudio  Cappa  Fabrizio  Cocconcelli  Pier Sandro  Shotyk  William  Trevisan  Marco  Miano  Teodoro M. 《Biology and Fertility of Soils》2014,50(5):815-826

Biology and Fertility of Soils - Peatlands are archives of extreme importance for the assessment of past ecological, environmental and climatic changes. The importance as natural archives is even...  相似文献   

Laboratory and field survival of Spodoptera frugiperda (Lepidoptera: Noctuidae) on Bt and non‐Bt maize and its susceptibility to insecticides     

Dionei S Muraro  Cinthia G Garlet  Daniela N Godoy  Gisele E Cossa  Gerson L dos S Rodrigues Junior  Regis F Stacke  Sandro LP Medeiros  Jerson VC Guedes  Oderlei Bernardi 《Pest management science》2019,75(8):2202-2210

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Precision land leveling for sustainable rice production: case studies in Cambodia,Thailand, Philippines,Vietnam, and India     

Nguyen-Van-Hung  Balingbing  Carlito  Sandro  Joseph  Khandai  Suryakanta  Chea  Hong  Songmethakrit  Thanach  Meas  Pyseth  Hitzler  Gerald  Zwick  Walter  Viriyangkura  Ladda  Bautista  Elmer  Gummert  Martin 《Precision Agriculture》2022,23(5):1633-1652

Precision Agriculture - Laser-controlled land leveling (LLL) can help improve rice production's spatial and temporal management, leading to optimized water and crop management. This research...  相似文献