LEADING CULTURE IN THE SYSTEM OF BIOLOGIZATION OF AGRICULTURE

2019 ◽  
Keyword(s):  
Cover Crops ◽  
Agricultural Production ◽  
Humus Content ◽  
Dry Mass ◽  
Biological Factor ◽  
Resource Saving ◽  
Green Mass ◽  
Russian Research Institute ◽  
Vladimir Region ◽  
High Feed

We consider the biologization of agriculture as a system for enhancing the role of the biological factor in the reproduction of soil fertility and increasing the productivity of agricultural production. Due to the unique economic and biological features, a very positive component of many parts of this system is lu-pine. Our research during 1996 -2018 on sod-podzolic sandy loamy low fertile soils of the experimental field of VNIIOU and in a number of farms in the Vladimir region on agrobiological evaluation of various varieties of annual lupine from the All-Russian Research Institute of Lupine showed that at the present stage of agricultural production development in Non-chernozem zone, which takes place in difficult eco-nomic conditions, it should be considered as the most effective universal culture with high environment-forming properties, feed production and resource-saving potential. Among varieties studied, the varieties of the narrow-leaved lupine Vityaz and Crystal have been shown to be priority. With an average long-term yield of grain of about 25 kg / ha and green mass of 400 kg / ha, they form a powerful root system that penetrates the soil profile to the parent rock, accumulating only in the arable horizon of organic dry mass up to 50 kg / ha, providing a reduction in the decrease in soil humus content, improvement of their physicochemical properties, carbon and mineral nutrition of plants in crop rotation. In addition, lupine forms about 30 kg / ha of straw, which is characterized by a narrower ratio of nitrogen to carbon than cereal straw, it can be used for fertilizer without compensating nitrogen additives. Among annual leg-umes, lupine is a priority nitrogen fixer. With a nitrogen fixation coefficient of 60-70, it accumulates up to 300 kg / ha of symbiotic nitrogen in the biomass; therefore, it is a good sideral crop in rotations and a donor crop in mixed and cover crops. For the same reason, it can be used as a phytomeliorant on soils contaminated with animal waste. Lupine has a high feed value - in seeds it accumulates 35-40% of well-digestible protein, in green mass - up to 20%.

scholarly journals Soybean Yields and Biomass Production of Winter Cover Crops in the Southwest of Parana – Brazil

2019 ◽  
Vol 12 (5) ◽  
pp. 40 ◽  
Author(s):  
Amarildo Antonio Tessaro ◽  
Mauricio Antonio Pereira ◽  
Ademir Calegari ◽  
Sideney Becker Onofre ◽  
Ricardo Ralisch
Keyword(s):  
Cover Crops ◽  
Dry Mass ◽  
White Lupin ◽  
Coverage Area ◽  
Average Value ◽  
Tukey Test ◽  
Green Mass ◽  
Winter Cover ◽  
Winter Cover Crops ◽  
Management And Conservation

The use of winter cover crops is an important practice for the management and conservation of soil and water in southern Brazil. The objective of this work was to evaluate the accumulation of green mass and dry mass in the aerial part of winter cover crops in monocropping and intercropping in southwestern Paraná, in the years 2016 and 2017. Randomized blocks were used as experimental design with a subdivided plot scheme of 50 m² with five replications. The cover crops used in monocropping were black oats and wheat, while for the intercropping black oats + turnips + rye + white lupin (AP+NF+C+TB), black oats + turnips (AP+NF) and black oats + turnips + rye + vetches + white lupin + buckwheat (AP+NF+C+E+TB+TM) were used. The data were subjected to analysis of variance and the means were compared by the Tukey test at 5 % probability. The intercrop composed of black oats + turnips + rye + vetches + white lupin + buckwheat had a higher production of green mass, with an average value of 50.880 kg ha-1. For the production of dry mass, the monocrop of black oats had higher yields, with an average value of 5.168 kg ha-1. The highest yields were obtained in the coverage area with black oats, turnips, rye, vetches, white lupin and buckwheat, presenting a yield in 2017 of 4.487 kg ha-1.

Relationships between cover performance and date of fall-seeding where winter rye was broadcast into a standing potato crop

1992 ◽  
Vol 72 (1) ◽  
pp. 269-274
Author(s):  
Linnell M. Edwards ◽  
John M. Sadler
Keyword(s):  
Cover Crops ◽  
Potato Crop ◽  
Ground Cover ◽  
Dry Mass ◽  
Winter Survival ◽  
Winter Rye ◽  
Winter Ground ◽  
Post Harvest

Winter rye was broadcast into a potato crop just after topkilling with the object of avoiding post-harvest delays in establishing a winter ground cover. Rye treatments were interseeded (i) at intervals of 1 d for up to 10 d before potato digging, without post-harvest tillage and (ii) just after digging and preparatory seedbed tillage as a comparative standard. Generally, cover performance of rye, measured as plant count, tiller count or dry mass of plants showed significant (P < 0.05) increase with decreasing days to potato digging up to 3 or 4 d before digging. There was no sacrifice of rye cover using this inter-seeding approach compared with traditional post-(potato) harvest seeding in a prepared seedbed. Seeding 3–4 d before potato harvest is recommended on the basis of superior fall plant count, spring tiller count and shoot dry mass, and winter survival indices on either of these days.Key words: Cover crops, winter rye, winter survival, companion cropping

Blue lupine — source of valuable nutrients in forage production

2020 ◽  
pp. 29-33
Author(s):  
П.А. Агеева ◽  
Н.А. Почутина ◽  
М.В. Матюхина
Keyword(s):  
Lupinus Angustifolius ◽  
Maturity Stage ◽  
Forage Production ◽  
Carotene Content ◽  
Green Mass ◽  
Russian Research Institute ◽  
Grain Productivity ◽  
Southwest Region ◽  
Livestock Feeding ◽  
Russian Research

Научная работа выполнена во Всероссийском научно-исследовательском институте люпина в условиях Юго-Западного региона Нечернозёмной зоны Российской Федерации в 2017–2018 годах. Целью исследований было изучение и оценка районированных сортов и перспективных сортообразцов узколистного люпина (Lupinus angustifolius L.) собственной селекции по урожайности зерна, зелёной массы, выходу сырого протеина и других питательных веществ, необходимых при приготовлении кормов для различных животных и птицы. По урожайности зерна (соответственно 3,00 и 2,93 т/га) и зелёной массы (38,3 и 36,3 т/га) выделились новые сортономера Узколистный 53-02 и СмW 62-17. Диапазон превышения по отношению к стандарту по этим показателям составил: по Узколистному 53-02 — 18,1–21,0%, по СмW 62-17 — 22,2–29,0%. Содержание алкалоидов в зерне этих вариантов — 0,041–0,042%. Минимальная алкалоидность (0,038%) отмечена у сортов Белорозовый 144 и Смена. Максимальный сбор белка (1003 кг/га) с урожаем зерна обеспечил Узколистный 53-02; с урожаем зелёноукосной продукции — сорт Белорозовый 144 (1002 кг/га). Максимальное содержание каротина (73,3 мг/кг) получено у сорта Брянский кормовой в фазу цветения. В период технологической спелости зелёной массы по содержанию каротина (45,2 мг/кг) он также был в числе лучших. Во Всероссийском НИИ люпина разработаны сбалансированные по необходимым питательным веществам рационы с использованием зерна и зелёной массы различных сортов узколистного люпина и проведены многочисленные опыты на различных производственных группах крупного рогатого скота, свиньях и птице. Привлекательность узколистного люпина для использования в производстве связана с тем, что из крупносемянных видов он один из самых скороспелых, холодостойких и устойчивых к антракнозу. The research was conducted in the Southwest region of the Non-Chernozem zone of Russia in 2017–2018. The aim was to evaluate promising genotypes of blue lupine (Lupinus angustifolius L.) regarding their grain productivity, yields of green mass, crude protein and other valuable nutrients for livestock feeding. “Uzkolistnyy 53-02” and SmW 62-17 genotypes had the highest productivity of grain (3.00 and 2.93 t ha-1) and green mass (38.3 and 36.3 t ha-1, respectively). Hence yield increases amounted to 18.1–21.0% (“Uzkolistnyy 53-02”) and 22.2–29.0% (SmW 62-17), respectively. Alkaloid concentration reached 0.041–0.042% in their grain. Grains of “Belorozovyy 144” and “Smena” varieties accumulated the least alkaloids. Grain of “Uzkolistnyy 53-02” and green mass of “Belorozovyy 144” were rich in protein — 1003 and 1002 kg ha-1, respectively. “Bryanskiy kormovoy” had the highest carotene content of 73.3 mg/kg at flowering time. It showed high carotene concentration also at green mass maturity stage. The All-Russian Research Institute of Lupine developed balanced diets for grain and green forage from blue lupine and tested their effect on cattle, pigs, and poultry. Blue lupine is a valuable crop for forage production due to large seed size, early ripeness as well as resistance to cold and pod spot.

scholarly journals Nitrogen fertilization of vegetables cultivated under no-tillage after cover crops

2017 ◽  
Vol 35 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Roberto BF Branco ◽  
Sally F Blat ◽  
Tais GS Gimenes ◽  
Rodrigo HD Nowaki ◽  
Humberto S Araújo ◽  
...  
Keyword(s):  
Plant Growth ◽  
Cover Crops ◽  
Nitrogen Fertilization ◽  
Nitrate Concentration ◽  
Dry Mass ◽  
Growth And Yield ◽  
No Tillage ◽  
Biological Fixation ◽  
Sunn Hemp ◽  
Nitrogen Rates

ABSTRACT The production of horticultural crops in no-tillage and in rotation with cover crops reduces the dependency in nitrogen fertilizer, due to increased soil organic matter and by biological fixation performed by legumes. Thus, the aim of this work was to study rates of nitrogen fertilization and cover crops in the agronomic performance of tomato and broccoli grown under no-tillage. The experiment was conducted in a split plot design with four replications. Treatments consisted of cover crops, sunn hemp and millet, and four rates of nitrogen fertilization (0, 50, 100 and 200 kg/ha of nitrogen), for both the tomato and broccoli crops. All soil management was performed in no-tillage. For tomato crops we evaluated the plant growth, the nitrate concentration of sprouts and fruits and yield of commercial and non commercial fruits. For broccoli we evaluated plant growth and yield. There was an interaction effect between cover crop and nitrogen rates to tomato growth measured at 100 days after transplanting, for plant height, number of fruit bunches, dry mass of leaves and diameter of the stalk. The tomato commercial fruit number and yield showed maximum values with 137 and 134 kg/ha of N respectively, on the sunn hemp straw. The nitrate concentration of the tomato sprouts was linearly increasing with the increase of nitrogen rates, when grown on the millet straw. For broccoli production, the maximum fresh mass of commercial inflorescence was with 96 kg/ha of N, when grown on the millet straw.

scholarly journals PERFORMANCE OF ‘NANICÃO JANGADA’ BANANA PLANTS INTERCROPPED WITH WINTER COVER CROPS

2016 ◽  
Vol 38 (4) ◽  
Author(s):  
RICARDO SFEIR DE AGUIAR ◽  
PAULO VICENTE CONTADOR ZACCHEO ◽  
CARMEN SILVIA VIEIRA JANEIRO NEVES ◽  
MARCELO SFEIR DE AGUIAR ◽  
FERNANDO TEIXEIRA DE OLIVEIRA
Keyword(s):  
Cover Crops ◽  
Crop Residues ◽  
Production Systems ◽  
Soil Management ◽  
Dry Mass ◽  
Vegetative Development ◽  
Chicken Litter ◽  
Winter Cover ◽  
Winter Cover Crops

ABSTRACT The use of cover crops species may be an important strategy in the pursuit of sustainability of agroecosystems, considering benefits to soil, such as improvements of physical and chemical characteristics, and weed control. The objective of this study was to evaluate the effect of winter cover crops and other soil managements on chemical soil properties, on the cycle, on the production of the first cycle and on the fruit quality of banana cv. Nanicão Jangada in Andirá – PR, Brazil. The experiment was carried out in a commercial. Planting of banana suckers from the grower area occurred in the first half of March 2011, with a spacing of 2.40 m between rows and 1.90 m between plants. The experiment was designed in randomized blocks with four replications and six plants per plot. The six treatments were: black oat (Avenastrigosa Schreb), forage turnip (Raphanus sativus L. var. oleiferus), consortium of black oat and forage turnip, chicken litter, residues of banana plants, and bare ground. The evaluations were vegetative development and life cycle of banana plants, yield and quality of fruits, soil chemical characterstics, and fresh and dry mass of green manures. The results were submitted to ANOVA (F Test), and Tukey test at 5 % probability. Black oat and black oat with forage turnip consortium were superior in biomass production. Systems of soil management had no effect on the variables, except in the periods between planting and flowering and between planting and harvest, which were shorter in the treatment of soil management with crop residues, longer in the treatment with forage turnip, and intermediate in the other treatments.

scholarly journals RESOURCE-SAVING TECHNOLOGIES FOR SOYBEAN CULTIVATION ON DEGRADED SOILS OF THE ALMATY OBLAST

REPORTS ◽  
2020 ◽  
Vol 6 (334) ◽  
pp. 103-108
Author(s):  
T. Atakulov ◽  
◽  
N. Alipbekov ◽  
A. Smanov ◽  
U. Kalymbetov ◽  
...  
Keyword(s):  
Humus Content ◽  
Salt Content ◽  
Soybean Seed ◽  
Soil Horizon ◽  
Average Yield ◽  
Resource Saving ◽  
Sudan Grass ◽  
Effective Use ◽  
The Cost ◽  
Intensive Growth

The article presents data on the effective use of secondary saline irrigated land in Almaty oblast. The use of salt-resistant phytomeliorants and an adoptogen contributed to a decrease in the salt content in the soil, along with an increase in yield and improvement of the soil structure. The results showed that in the upper layers of the soil (0-20 cm), the content of agronomically valuable aggregates is higher and ranges from 64 to 73%, and with a depth (20-40 cm) it decreases and ranges from 39 to 66%. The content of water-bearing aggregates increases by 2-5% with depth, and the volume mass of the soil increases with depth and averaged 1.24-1.30 g/cm3. The humus content ranges from 0.54 to 1.16%. The results of observations of the growth and development of phytomeliorants showed that phytomeliorants intensively grew, developed and accumulated aboveground masses, especially in variants with adaptogen treatment. The height of plants reached up to 266 cm (Sudan grass), and on the variant without treatment was 257 cm. Accumulated aboveground masses from 950 to 2013 gr. Intensive growth of phytomeliorants was suppressed by weeds, and their contents were insignificant from 19 to 22 pcs/m2, and in the variant with adaptogen treatment was from 18-20 pcs/m2. The average yield of sorghum green mass ranged from 740.4 centner/ha in the variant without adaptogen treatment, and in the variant with treatment was 777.4 centner/ha. The average yield of sudan grass was 947.0-990.3 centner/ha, and soybean seed yield was in the range from 54.7-56.4 centner/ha. Intensive development of phytomeliorants contributed to an increase in yield and a decrease in salts on the upper soil horizon (0-20 cm) from 0.06 to 0.27%. The largest decrease in salts by 0.27% was observed under soybean crops. The use of the recommended technology contributed to saving irrigation water up to 70% due to drip irrigation, reducing the cost of washing and chemical reclamation – gypsum.

RESOURCE-SAVING TECHNOLOGY FOR PROCESSING MEDICINAL SAGE

2020 ◽  
Author(s):  
Т.В. ПЕЛИПЕНКО
Keyword(s):  
Essential Oil ◽  
Raw Materials ◽  
Total Yield ◽  
Dry Mass ◽  
Biologically Active ◽  
Flow Diagram ◽  
Resource Saving ◽  
Process Flow Diagram ◽  
Full Flowering ◽  
Active Substances

Исследованы потенциальные возможности ресурсосберегающей технологии переработки шалфея лекарственного (ШЛ). Объектом исследования были образцы эфирномасличного сырья – свежеубранные надземные части ШЛ в фазе полного цветения растения и сухие листья ШЛ. Предложенная схема переработки включает следующие стадии: получение эфирного масла; извлечение конкрета из обезэфиренных отходов экстракцией углеводородным растворителем и последующей его отгонкой; получение абсолютного масла и очищенных восков из конкрета отходов; извлечение дитерпеновых соединений экстракцией этиловым спиртом из отходов сырья после обработки гексаном. В результате исследований фракционного состава сырья и особенностей локализации эфирного масла установлено, что массовая доля эфирного масла составляет, % к сухой массе исследуемых фракций: в листьях и соцветиях 2,75, в стеблях 0,31. Рекомендовано введение ограничительных норм по соотношению технически ценной фракции – листьев и соцветий и балластной – стеблей. Полученное из ШЛ эфирное масло имеет высокое содержание туйонов (31,50%), камфоры (21,0%) и 1,8-цинеола (18,80%). Выход дитерпеновых соединений при комплексной переработке эфирномасличного сырья ШЛ на 38,0% ниже, чем из сухих листьев растения. Однако при расчете на сухую массу листьев и соцветий, составляющих 62,3% от массы сырья, показатели отличаются незначительно. Общий выход продуктов, содержащих комплекс биологически активных веществ, составил 15,53 %, что подтверждает целесообразность использования комплексной переработки шалфея лекарственного. The potential of resource-saving technology for processing medicinal sage (MS) has been studied. Samples of essential oil raw materials-freshly harvested aboveground parts of MS in the phase of full flowering of the plant and dry leaves of MS were the object of research. The proposed process flow diagram includes the following stages: obtaining essential oil; recovering a particular from deester waste by extraction with a hydrocarbon solvent and its subsequent distillation; obtaining absolute oil and refined waxes from a specific waste; extraction of diterpene compounds from raw waste after treatment with hexane by extraction with ethyl alcohol. As a result of studies of the fractional composition of raw materials and the features of localization of essential oil, it was found that the mass fraction of essential oil is, % of the dry mass of the studied fractions: 2,75 in leaves and inflorescences, and 0,31 in stems. The introduction of restrictive norms on the ratio of technically valuable fraction – leaves and inflorescences and ballast – stems is recommended. The essential oil obtained from MS has a high content of tuyons (31,50%), camphor (21,0%) and 1,8-cineol (18,80%). The yield of diterpene compounds in the complex processing of essential oil raw materials MS is 38,0% lower than from dry leaves of the plant. However when calculating the dry mass of leaves and inflorescences, which make up 62,3% of the mass of raw materials, the indicators differ slightly. The total yield products containing a complex of biologically active substances amounted to 15,53%, which confirms the feasibility of complex processing of medicinal sage.

Growth and development of domesticated and wild genotypes of red clover (Trifolium pratense L.) in the Middle Urals

2021 ◽  
pp. 15-20
Author(s):  
В.А. Волошин
Keyword(s):  
Trifolium Pratense ◽  
Red Clover ◽  
Weather Conditions ◽  
Dry Mass ◽  
Middle Urals ◽  
Wild Genotype ◽  
Flowering Pattern ◽  
Green Mass ◽  
Trifolium Pratense L ◽  
Stable Yield

В данной статье представлены результаты сравнительной оценки 11 сортов клевера лугового и одного образца-дикороса, проведённой в Пермском НИИ сельского хозяйства в 2018–2019 годах. Все селекционные сорта сформировали полноценные первый и второй укосы или отаву в оба года использования. Дикорастущая форма формировала только один укос, демонстрируя особенность позднеспелого одноукосного типа. Сорта Кретуновский и Ранний 2 показали себя как типичные раннеспелые двухукосные. Другие сорта занимали промежуточное положение. Наибольший сбор сухого вещества обеспечивал образец-дикорос в оба года при крайне различных погодных условиях (1,266 и 1,259 кг/м2 соответственно). Дикорастущая форма и сорт Ранний 2 обеспечивали стабильные урожаи зелёной массы и сухого вещества независимо от возраста и погодных условий. Образец дикорастущего клевера имел более однородный фенотип по сравнению с сортом Пермский местный — стандартом для позднеспелого типа, что указывает на большую генетическую однородность. Согласно всесторонней оценке, включающей степень перезимовки, урожайность зелёной и сухой массы, характер цветения, созревания, формирования и конечный урожай семян, образец-дикорос имеет отличительные признаки позднеспелого (одноукосного) типа и может использоваться в качестве исходного генетического материала для дальнейшей селекции позднеспелых одноукосных сортов клевера лугового, характеризующихся экономически ценными свойствами: высокой устойчивостью к неблагоприятным условиям окружающей среды, высокой и стабильной урожайностью зелёной массы и семян. Исследования будут продолжены с оценкой ряда образцов дикорастущих форм клевера лугового, обнаруженных в 2019 году в природных биоценозах Пермского края. This article deals with the competitive trial of 11 varieties and 1 wild genotype of red clover conducted at the Research Institute of Agriculture in 2018–2019. All the varieties provided good yields of green mass both in the first and second cuts. Wild genotype provided only one cut as long-season one-cut type. “Kretunovskiy” and “Ranniy 2” performed as typical short-season two-cut varieties. Wild genotype produced the highest yield of dry matter (DM) under contrast weather conditions (1.266 and 1.259 kg/m2, respectively). Wild genotype and “Ranniy 2” formed stable yields of green mass and DM regardless of time period and weather. Wild genotype showed homogeneous phenotype compared to “Permskiy mestnyy” — long-season standard variety indicating high genetic uniformity. Such traits as winter hardiness, green and dry mass yields, flowering pattern, seed maturation, formation and production were evaluated. According to this evaluation wild genotype performed as long-season (one-cut) type showing high resistance to unfavorable conditions, high and stable yield of green mass and seeds. Therefore, it can be used a source of economically important traits for future breeding programs of red clover. Further investigations will focus on the evaluation of wild genotypes of red clover found in the Perm region in 2019.

scholarly journals Evaluation of sulfur source and dose on the nutritional state and production of piatã forage

2019 ◽  
Vol 40 (3) ◽  
pp. 1237 ◽  
Author(s):  
Luiz Felipe de Melo Santos ◽  
Allan de Marcos Lapaz ◽  
Rafael Simões Tomaz ◽  
Maikon Vinicius da Silva Lira ◽  
Adônis Moreira ◽  
...  
Keyword(s):  
Agricultural Production ◽  
Elemental Sulfur ◽  
Block Design ◽  
Dry Mass ◽  
Sulfur Source ◽  
Sulfur Deficiency ◽  
Randomized Block Design ◽  
Sulfur Supply ◽  
Grass Growth ◽  
Low Sulfur

Sulfur deficiency in soils has become a worldwide concern for agricultural production. This study aimed to evaluate the concequence of variable sulfur source and dosing on the nutritional status and production of Piatã forage in a dystrophic Ultisol. The experiment was arranged in a completely randomized block design with four replications. The 4 x 5 factorial treatments consisted of four sulfur sources (elemental sulfur pastilles [ESPA], gypsum [GY], gypsite [GI], and elemental sulfur powder [ESPO]) and five sulfur doses (0, 50, 100, 150. and 200 mg kg-1). The sulfur applications resulted in similar maximum shoot dry mass (SDM) production (16.66 to 17.69 g pot-1) with all sources. However, Piatã grass achieved maximum production in the treatments with 112 mg kg-1 of GI, 118 mg kg-1 of GY and ESPA, and 146 mg kg-1 of ESPO. The number of tillers, the leaf:stem ratio, and SPAD increased with increasing sulfur dose. The greatest increments of root dry mass (RDM) and of the tiller number were obtained with the ESPO source. Macronutrient concentrations in shoot dry mass tissue were in the order K > N > Ca > P > S > Mg. Low sulfur supply resulted in decreased Piatã grass growth with all sulfur sources tested. Differential responses were found with applications of different sulfur sources for SDM, RDM, and tillers number. The sources did not alter the leaf:stem ratio or SPAD index.

scholarly journals Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

2019 ◽  
Vol 11 (5) ◽  
pp. 152 ◽  
Author(s):  
Daiane Conceição de Sousa ◽  
João Carlos Medeiros ◽  
Julian Junio de Jesus Lacerda ◽  
Jaqueline Dalla Rosa ◽  
Cácio Luiz Boechat ◽  
...  
Keyword(s):  
Cover Crops ◽  
Cajanus Cajan ◽  
Dry Matter ◽  
Pennisetum Glaucum ◽  
Dry Mass ◽  
Dry Matter Production ◽  
Crop Species ◽  
Crotalaria Juncea ◽  
Matter Production ◽  
Crotalaria Spectabilis

The use of cover crops is an important strategy for soil management in the Brazilian Cerrado to improve no-tillage (NT) systems. For this, it is necessary know the potential of cover crop species for biomass production, nutrient cycling, and persistence of residues on the soil surface in soils and climatic conditions of this biome. Thus, the experiment was developed to evaluate the agronomic potential of cover crops cultivated on an Oxisol (Latossolo Amarelo) in the Cerrado of Piau&iacute;, Brazil. The experiment was conducted from January 2015 to July 2016. The experimental design was in randomized blocks with 11 treatments and four replicates. The treatments consisted of single and intercropped cover species. The evaluations were: dry mass production, nutritional composition of the plants, nutrient accumulation by dry mass produced and decomposition rate of the dry mass produced for each treatment. The higher dry matter production was obtained with Crotalaria juncea, Cajanus cajan (cv. IAC-Fava larga), Pennisetum glaucum and Brachiaria ruziziensis. The lower dry matter production was obtained with Mucuna aterrima, and mix of Crotalaria spectabilis + Pennisetum glaucum. The higher nutrients accumulation in the plants occurred for Cajanus cajan (cv. IAC-Fava larga), Crotalaria juncea and Crotalaria spectabilis. The cover plants studied presented good potential for soil conservation, due to the permanence of residues on the surface, except for Mucuna aterrima and Crotalaria spectabilis.

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