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Soil management and nitrogen fertilization for sprinkler-irrigated upland rice cultivars
Arf, Orivaldo;Rodrigues, Ricardo Antonio Ferreira;Crusciol, Carlos Alexandre Costa;Sá, Marco Eustáquio de;Buzetti, Salatiér;
Scientia Agricola , 2003, DOI: 10.1590/S0103-90162003000200020
Abstract: the use of sprinkler irrigation for rice (oryza sativa l.) crop is a relatively recent practice in brazil. therefore, crop soil and fertilization management are still not very well defined. another problem is the inexistence of specific cultivars adapted to this cropping system. this study aimed to evaluate sprinkler-irrigated upland rice cultivars under different soil management practices and nitrogen sidedressing rates in relation to yield and grain quality. a randomized block design was used, arranged as a 3 x 3 x 5 factorial scheme, totaling 45 treatments consisting of the combination of three rice cultivars (primavera, confian?a and maravilha), three soil management systems (disk harrow + levelling harrow, moldboard plow + levelling harrow and no-till) and five nitrogen rates, applied as sidedressing (0, 25, 50, 75 and 100 kg ha-1), with four replicates. the experiment was set up during the 1999/2000 and 2000/2001 cropping seasons, in selvíria, ms, brazil, on a typic haplustox of clayey texture. cultivars primavera and maravilha presented higher grain yield than confian?a; on the other hand the latter showed higher milled and head rice yields during seed processing. soil tillage with the moldboard plow and no-till interfered positively in the agronomic and productive characteristics of the crop. in relation to milled rice yield, tilling with the levelling disk + moldboard plow showed better results in relation to no-till. nitrogen sidedressing did not interfere with the agronomic and productive characteristcs as well as with the milled rice yield of all cultivars.
Soil management and nitrogen fertilization for sprinkler-irrigated upland rice cultivars  [cached]
Arf Orivaldo,Rodrigues Ricardo Antonio Ferreira,Crusciol Carlos Alexandre Costa,Sá Marco Eustáquio de
Scientia Agricola , 2003,
Abstract: The use of sprinkler irrigation for rice (Oryza sativa L.) crop is a relatively recent practice in Brazil. Therefore, crop soil and fertilization management are still not very well defined. Another problem is the inexistence of specific cultivars adapted to this cropping system. This study aimed to evaluate sprinkler-irrigated upland rice cultivars under different soil management practices and nitrogen sidedressing rates in relation to yield and grain quality. A randomized block design was used, arranged as a 3 x 3 x 5 factorial scheme, totaling 45 treatments consisting of the combination of three rice cultivars (Primavera, Confian a and Maravilha), three soil management systems (disk harrow + levelling harrow, moldboard plow + levelling harrow and no-till) and five nitrogen rates, applied as sidedressing (0, 25, 50, 75 and 100 kg ha-1), with four replicates. The experiment was set up during the 1999/2000 and 2000/2001 cropping seasons, in Selvíria, MS, Brazil, on a Typic Haplustox of clayey texture. Cultivars Primavera and Maravilha presented higher grain yield than Confian a; on the other hand the latter showed higher milled and head rice yields during seed processing. Soil tillage with the moldboard plow and no-till interfered positively in the agronomic and productive characteristics of the crop. In relation to milled rice yield, tilling with the levelling disk + moldboard plow showed better results in relation to no-till. Nitrogen sidedressing did not interfere with the agronomic and productive characteristcs as well as with the milled rice yield of all cultivars.
Soil fertility and upland rice yield after biochar application in the Cerrado
Petter, Fabiano André;Madari, Beáta Em?ke;Silva, Mellissa Ananias Soler da;Carneiro, Marco Aurélio Carbone;Carvalho, Márcia Thaís de Melo;Marimon Júnior, Ben Hur;Pacheco, Leandro Pereira;
Pesquisa Agropecuária Brasileira , 2012, DOI: 10.1590/S0100-204X2012000500010
Abstract: the objective of this work was to evaluate the effect of biochar made from eucalyptus on soil fertility, and on the yield and development of upland rice. the experiment was performed during two years in a randomized block design with four replicates, in a sandy loam dystric plinthosol. four doses of npk 05-25-15, annually distributed in stripes (0, 100, 200 and 300 kg ha-1), and four doses of biochar (0, 8, 16 and 32 mg ha-1), applied once in the first year - alone or with npk - were evaluated. in the first year, biochar positively affected soil fertility [total organic carbon (toc), ca, p, al, h+al, and ph], at 0-10 cm soil depth, and it was the only factor with significant effect on yield. in the second year, the effect of biochar diminished or was overcome by the fertilizer. toc moved down in the soil profile to the 0-20 cm depth, influencing k availability in this layer. in the second year, there was a significant interaction between biochar and the fertilizer on plant growth and biomass dry matter accumulation.
Manures Effectivity to Enhanced the Availability of Phosphorus, Crops Growth and Yield of Rice and Corn in Acid Upland Soil  [cached]
Yoyo Soelaeman
Jurnal Tanah Tropika , 2008,
Abstract: The research was conducted in Tamanbogo Station Research in the 2007 Rainy Season in upland rice-corn intercropping farming. The research design used Randomized Complete Block Design with 3 replications. The treatments were 1). 15 t ha-1 manures + Residues of rock phosphate (RRP), 2). Without manures + RRP, 3). 15 t ha-1 manures + 150 kg ha-1 SP 36 and 4). Without manures + 150 kg ha-1 SP 36. The upland rice was seeded in planting space of 25 cm x 25 cm, 2-3 seeds/hill. The land was treated with 1 t ha-1 of RP in the last farming year while SP36 was applicated each season. Urea and KCl fertilizers that were used on upland rice were 300 kg ha-1 and 100 kg ha-1, respectively while corns were fertilized with 250 kg ha-1 urea and 100 kg KCl ha-1. The research results showed that the availability of N and K nutrients in the soil at the time of before planting was low but the availability P was high. Application of manures and RRP increased C-organic, availability of P , Ca and Cation Exchangeable Capacity in the soil. Application of 15 t ha-1 of manures with RRP increased dry biomass weight of rice and corn, there were 45.17 % and 49.23 %, respectively. The grain yield of rice and corn on the treatment of manures and RRP were not gave significant different compare to the yield was gained with SP 36 fertilizer.
Efficient soil solarization for weed control in the rain-fed upland rice ecosystem
Khan A.R.,Srivastava R.C.,Ghorai A.K.,Singh S.R.
International Agrophysics , 2003,
Abstract: Weed competition causes significant damage (up to 90%) to crop yields. Weed control through chemical means in the form of herbicide is commonly used to kill weeds or inhibit their growth throughout the world. However, the use of herbicides has increased toxic residues dangerously, indiscriminately targeting organisms, the environment, and ground water and creating serious upheaval in the ecosystem. Studies were conducted through a series of experiments for five consecutive wet seasons with a variety of alternative biological solutions to control the weeds. These solutions are benign, harmless, pollution free, non - hazardous and eco - friendly and control the pre-emergence of weeds in the rain-fed, upland rice ecosystem whereas in the high rainfall coastal region of eastern India, control was effected through soil solarization. This is a method of heating the soil's surface by using transparent low-density polyethylene (LDPE film) sheets placed on the soil's surface to trap solar radiation. This raises the soil temperature to a level which is lethal for many soil borne pathogens and weed seeds, thus killing weeds before they even begin to grow. The rise in soil temperature due to solarization by using LDPE film was significantly correlated to the soil temperature under normal conditions (uncovered) and the cumulative solar radiation (Wm-2) of that day but the effect of the air temperature was found to be insignificant. A quadratic relationship was developed between temperature difference (DT) and soil temperature (ST) and the cumulative solar radiation (SR) for that day. The use of transparent and black LDPE sheets reduces weed growth and increases rice yield. Higher yields were found in treatments using transparent LDPE films of 200 gauges and 400 gauges for 30 days followed by black LDPE film. However, lower yields were recorded from the fields which were covered with LDPE films (both 200 and 400 gauge) beyond 30 days.
The Effect of Different Fertilizers Management Strategies on Growth and Yield of Upland Black Glutinous Rice and Soil Property  [PDF]
A. Naing Oo,P. Banterng,A. Polthanee,V. Trelo-Ges
Asian Journal of Plant Sciences , 2010,
Abstract: The aim of this study was to investigate the effect of organic and inorganic fertilizers on growth and yield of five upland black glutinous rice varieties and soil property. Two experiments were conducted at Khon Kaen University, Thailand during the rainy seasons of 2007 and 2008. Experiments were laid out in a split-plot design with four replications. Four fertilizer treatments (control, farmyard manure (FYM) or cattle manure at a rate of 10 t ha-1, NPK at the rate of 50-22-42 kg N-P-K ha-1, the combination of the FYM and NPK were randomized in the main plots and five black glutinous rice varieties (KKU-GL-BL-05-002, KKU-GL-BL-05-003, KKU-GL-BL-05-004, KKU-GL-BL-05-009 and KKU-GL-BL-05-010) were randomized in the sub plots. Soil samples before fertilizer application and after harvesting were analyzed to determine chemical and physical properties. Leaf Area Index (LAI) and shoot dry matter were recorded at 40 days after planting, panicle initiation and flowering stages. Number of tillers and panicles per hill and grains per panicle, thousand grain weight, number of filled and unfilled grains and grain yield were recorded at harvest time. The results from both years indicated that using the combination of FYM and inorganic fertilizers increased shoot dry matter, LAI, tiller and panicle number per hill, grain number per panicle and grain yield. It was recorded that application of FYM together with inorganic fertilizers significantly increased soil organic matter, CEC, N, P and K. Comparing among the five varieties, KKU-GL-BL-05-002 had highest grain number per panicle and grain yield in both years.
RESPONSE OF UPLAND RICE (ORYZA SATIVA L) CULTIVARS TO SPLIT APPLICATION OF COMPOST ON HIGHLY WEATHERED SOIL OF DERIVED SAVANNAH AGRO-ECOLOGY
Oyeyemi Adigun DADA,Ayodele Samuel THOMAS,Oyetola Olusola OWORU
Annals of West University of Timi?oara : Series of Biology , 2012,
Abstract: Compost application in form of pre-planting incorporation limits nutrient use efficiency in upland rice propagation. Supplying nutrients to crop as required enforces realization of yield potential of field crop. Field study was carried out between 2009 and 2010 planting seasons to investigate the response of upland rice cultivars to split application of compost at varying growth phases in derived savannah agro-zone. Cattle dung + maize stover compost was applied in two splits of different growth phases (Pre-planting, tillering and panicle exertion, tillering and booting, panicle exertion and booting) to three upland rice cultivars - NERICAI, NERICA II and Ofada. The study was laid out in randomized complete block design with three replicates. Data were collected on growth, dry matter, nutrient uptake concentrations and grain yield. Data were analyzed using Analysis of Variance (ANOVA) and the significant means were compared with Least Significant Difference (LSD) at p = 0.05. The results showed that compost application at active vegetative periods (Tillering to booting) promoted better LAI (1027.89), number of leaves (23.94) and tillers (5.11). The response of the three upland rice cultivars to varying time of compost application revealed that split application of compost had significant effect on yield components of upland rice cultivars. Uptake concentration of N (11.49mg/kg) and P (8.65mg/kg) were significantly highest in rice field fertilized at panicle exertion and booting growth.
Phosphorus use efficiency of upland rice cultivars on Cerrado soil / Eficiência no uso de fósforo de cultivares de arroz em solos de Cerrado  [cached]
Eduardo Lopes Cancellier,Diogo Ribeiro Brand?o,Joedna Silva,Manoel Mota dos Santos
Ambiência , 2012,
Abstract: ResumoRice (Oryza sativa L.) is one of the most economically important cereal in developing countries and the phosphorus is the most deficient nutrient in the majority of Brazilian soils because their low natural level and high adsorption capacity, therefore it is a crop limiting factor. Rice cultivars have differentiated nutritional requests and tolerances about stress of essential nutrients. This work aimed to evaluate the efficiency about use and response to phosphorus application in upland rice cultivars (BRS-Primavera, BRS-Caiapó, BRSMG-Curinga, BRSMG-Conai, BRS-Sertaneja, BRS-Bonan a and Epagri-109) in Cerrado soil. To simulate environments with low and high phosphorus levels were utilized levels of 20 and 120 kg ha-1 of P2O5 respectively. The experimental data were submitted to individual and joint analysis of variance applying the F test. Phosphorus influenced each cultivar differently and were not identified efficient cultivars about use and responsive to its application. The cultivars Epagri-109, BRS-Sertaneja and BRSMG-Conai are indicated to farming systems with high level of phosphorus. The cultivars BRS-Bonan a, BRSMG-Curinga, BRS-Primavera and BRS-Caiapó are indicated to farming systems with low level of phosphorus.
Growth components and zinc recovery efficiency of upland rice genotypes
Fageria, Nand Kumar;Baligar, Virupax Chanabasappa;
Pesquisa Agropecuária Brasileira , 2005, DOI: 10.1590/S0100-204X2005001200008
Abstract: the objective of this work was to evaluate zn use efficiency by upland rice genotypes. the experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an oxisol (typic hapludox) with no application, and with application of 10 mg kg-1 zn, applied as zinc sulfate. shoot dry weight, grain yield, zn harvest index, zn concentration in shoot and in grain were significantly influenced by soil zn levels and genotypes. however, panicle number and grain harvest index were significantly affected only by genotype. genotypes cna8557, cna8540 and ir42 produced higher grain yield than other genotypes. genotypes showed significant variability in zn recovery efficiency. on average, 13% of the applied zn was recovered by upland rice genotypes. genotypes with high zn recovery efficiency could be used in breeding of zn efficient upland rice cultivars. higher level of soil zn (10 mg kg-1) increased significantly the concentrations of plant cu and mn. however, fe concentrations in plant (shoot and grain) were not influenced by soil zn levels.
Resistance Status of Upland NERICA Rice Varieties to Termite Damage in Northcentral Nigeria  [PDF]
T.A. Agunbiade,F.E. Nwilene,A. Onasanya,M. Semon
Journal of Applied Sciences , 2009,
Abstract: Upland rice is mostly at risk from soil insect pests, including termites which cause significant yield losses. Studies were conducted at Kasua-Mangani, Kaduna State, Northcentral Nigeria, to evaluate the resistance status of 18 upland NERICA rice varieties to termite attack. The percent plant attacked by termites on the 18 NERICA varieties at 60 and 90 Days after Sowing (DAS) was between 2.47 to 12.45% and 3.82 to 20.89%, respectively. There was no significant difference in the response of NERICA rice varieties to termite attack at 60 and 90 DAS. The resistance status of NERICA rice varieties to termite attack was classified into 4 groups as follows: Moderately Resistant (MR), Moderately Susceptible with recessive resistance (MSr), Moderately Susceptible (MS) and Highly Susceptible (HS) according to cluster analysis. Of the 18 NERICA rice varieties studied, only NERICA 5, 14 and 18 were classified as MR and could be recommended as the most adapted rice varieties in termite prone areas of Northcentral Nigeria.
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