Florpyrauxifen-benzyl activity on perennial grass weeds found in Louisiana rice production – ERRATUM

2019 ◽  
Vol 33 (2) ◽  
pp. 386-386 ◽  
Author(s):  
Gustavo M. Teló ◽  
Eric P. Webster ◽  
David C. Blouin ◽  
Benjamin M. McKnight ◽  
Samer Y. Rustom
2019 ◽  
Vol 33 (2) ◽  
pp. 246-252
Author(s):  
Gustavo M. Teló ◽  
Eric P. Webster ◽  
David C. Blouin ◽  
Benjamin M. McKnight ◽  
Samer Y. Rustom

AbstractA glasshouse study was conducted on the Louisiana State University campus in Baton Rouge, LA, to evaluate the control of brook crowngrass, rice cutgrass, southern watergrass, and water paspalum. Florpyrauxifen-benzyl was applied at 30 g ai ha−1 to each grass species at the 3- to 4-leaf or 1- to 2-stolon stage of growth. Brook crowngrass treated with florpyrauxifen was controlled 71% at 21 d after treatment. Southern watergrass and water paspalum control did not exceed 56% and 36%, respectively, across all evaluations. Rice cutgrass treated with florpyrauxifen did not reach 15% control. Plants treated with florpyrauxifen, except rice cutgrass, displayed reduction in leaf number, stolon number, plant height, and plant fresh weight. These results indicate florpyrauxifen-benzyl can help manage a brook crowngrass infestation and suppress southern watergrass. However, florpyrauxifen-benzyl has little to no activity on water paspalum and rice cutgrass, and other management options should be employed if these weeds are present.


2012 ◽  
Vol 3 (6) ◽  
pp. 9-11
Author(s):  
N. Srihari Narayana ◽  
◽  
V. Sailaja V. Sailaja ◽  
P.V. Satyagopal P.V. Satyagopal ◽  
S.V. Prasad S.V. Prasad

2016 ◽  
Vol 1 (90) ◽  
pp. 92-97
Author(s):  
I.T. Slusar ◽  
V.A. Serbenyuk ◽  
A.N. Gera ◽  
A.P. Solyanik ◽  
A.A. Tarasenko

Research on the impact of the introduction of micro fertilizers and growth promoters on a background of mineral fertilizer and without N90R45К120 spent on old peat in shallow carbonate floodplain r.Supiy, Yahotyn Kyiv region. Power peat horizon about 60-70 cm, 7,4-7,6 pH of the aqueous extract, stupas schedule 56-60%, density 0,49-0,52 assembly soil, total nitrogen content (%) - 1.9; gross forms of phosphorus - 0,4, potassium 0.2, 20% lime. In experiments studying biological rehoplant, radustym, Biolan, emistim, Jets, humisol, plantafol, radyfarm and micronutrients: copper, boric acid, manganese sulphate, zinc sulphate, potassium humates. Treatment drugs conducted in the spring by spraying mixtures. Space research area of 60 m2, three-time repetition. It is established that the use of growth stimulants and micronutrients in the background N90R45К120 provided the highest yield mixtures of years, against making BIOLan - 9.9 t / ha Radyfarmu - 9.6 t / ha Radostymu 9.3 t / ha dry weight. In areas for making other preparations were intermediate yield growth rates - 0.5 - 2.0 t / ha dry weight. Also good gains herbage yields obtained by making all kinds of micronutrients and growth stimulants in the background without making makrodobryv which was within 5.3 - 6.9 t / ha to control without fertilization - 4.5 t / ha dry weight. In deep peat copper fertilizer (25 kg / ha of copper sulphate or 5 kg / ha pirytnoho cinders) in all zones should be making every 3-4 years, and zinc, cobalt and molybdenum advisable to make time for the growing season, spring, by foliar application in such numbers: ammonium molibdenovokyslyy - 0.3 kg / ha; cobalt sulfate - 3 kg / ha zinc sulphate 0.5 kg / ha or placers these salts should be mixed with major fertilizer.


2010 ◽  
Vol 36 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Abderazak Djabeur ◽  
Meriem Kaid-Harche ◽  
Daniel Côme ◽  
Françoise Corbineau

2020 ◽  
Vol 21 (1) ◽  
pp. 61-70
Author(s):  
Toncerius M. Lesu ◽  
S.P.N. Nainiti ◽  
Serman Nikolaus

The aim of this research is to find out how big the role of the farmer group members in increasing rice production at Korobhera Village, Meggo Subdistrict, Sikka District. The research has been done on April to May 2019. This is a qualitative study with purposive sampling considering the site was one of rice central production. The objectives of the study were to know : 1) how big the role of the farmer group members to productivity increasing in the area of research ; 2) the constraints faced by the members of the farmer group. Sample was done randomly using simple random sampling method with a total sample size of 50 people, who were the members of four farmer groups existed. The results of research indicated that the role of farmer group members in increasing rice production at the location of research was high, shown by the percentage of the accomplishment maximum score from average score in the amount of 75,65% (average score 87). The constraints faced by members of farmer group were quite similar, which were financial capital limits problem, uncaged livestocks and the availability of production tools was often not on time.


Punjab has emerged as an important rice-producing state in the country. The state with 1.53 percent of the geographical area of the country produces more than 11 percent of total rice production in the country. The production of rice in Punjab increased more than 10 times due to an increase in area and yield. The growth of a rice crop at such a high rate over 20 years in Punjab is indeed a rare phenomenon in the history of agricultural development in the world. Due to extensive cultivation of rice in Punjab, the state has been over-exploiting the groundwater, more than its recharge. Most of the tube-well dominated districts of the state, witnessed the fall in water table more than 20 to 30 cm per year. To dispose of the paddy straw, the farmers of Punjab generally opt for burning it. This practice of burning of paddy straw besides nutrient loss is posing a serious problem for the public health and transportation system. Rice has now become a problematic crop for Punjab state due to its ill effects on its natural resources, that is, the water and soil environmental degradation. The Punjab Agricultural University experts and other committees estimated that the total groundwater recharge from all sources can sustain/support only 16-17 lakh ha of paddy in Punjab. The area under the crop increased to 29 lakh ha which was unsustainable in the long run. The area under rice in Punjab should be stabilized at 16-17 lakh ha and the remaining paddy area should be shifted to other crops like pulses, oilseeds, maize, fruits, and vegetables, etc. requiringless water, to achieve proper water balance. Thus diversification of some area from paddy is in the interest of Punjab farmers, State government and the Central government for long term food security on a sustainable basis.


2017 ◽  
Vol 3 (4) ◽  
pp. 187 ◽  
Author(s):  
Arief Pambudi ◽  
Nita Noriko ◽  
Endah Permata Sari

<p><em>Abstrak -</em><strong> </strong><strong>Produksi padi di Indonesia setiap tahun mengalami peningkatan, namun peningkatan ini belum mampu memenuhi kebutuhan nasional sehingga impor masih harus dilakukan. Salah satu masalah dalam produksi beras adalah penggunaan pupuk berlebih yang tidak hanya meningkatkan biaya produksi, namun juga merusak kondisi tanah. Aplikasi bakteri tanah sebagai Plant <em>Growth Promoting Rhizobacteria</em> (PGPR) dapat menjadi salah satu solusi terhadap masalah ini. Penelitian ini bertujuan untuk mengisolasi bakteri tanah dari 3 lokasi sawah daerah Bekasi, membandingkan keberadaan total bakteri pada ketiga lokasi tersebut,  dan melakukan karakterisasi isolat berdasarkan karakter yang dapat memicu pertumbuhan tanaman. Dari ketiga lokasi, diperoleh total 59 isolat dan 5 diantaranya berpotensi sebagai PGPR karena kemampuan fiksasi Nitrogen, melarutkan Fosfat, katalase positif, dan motil. Dari ketiga lokasi pengambilan sampel, BK1 memiliki jumlah total bakteri terendah karena aplikasi pemupukan dan pestisida berlebih yang ditandai tingginya kadar P total, serta tingginya residu klorpirifos, karbofuran, dan paration. Kondisi fisik tanah BK1 juga didominasi partikel liat yang menyebabkan tanah menjadi lebih padat. Peningkatan jumlah penggunaan pupuk tidak selalu diikuti peningkatan produktivitas tanaman.</strong></p><p> </p><p><strong><em>Kata Kunci</em></strong><strong><em> </em></strong>- <em>Bakteri tanah, Rhizosfer sawah, PGPR, Pupuk Hayati</em></p><p><strong> </strong></p><p><em>Abstract</em><strong> - </strong><strong>Rice production in Indonesia has increased annually, but this increase has not reached national demand,so imports still done. </strong><strong>One of the problems in rice production is the use of excessive fertilizers that not only increase production costs, but also decreased the soil conditions. The application of soil bacteria as Plant Growth Promoting Rhizobacteria (PGPR) can be the one solution to face this problem. The objective of this study was isolate soil bacteria from 3 locations of rice field in Bekasi, compare the total bacteria in the three locations, and characterize isolates based on the character that can promote plant growth. From three locations, a total of 59 isolates were obtained and 5 of them were potential as a PGPRs due to its Nitrogen fixation activity, Phosphate solubilization, positive catalase, and motility. From three sampling sites, BK1 has the lowest TPC value because of excessive  fertilizers and pesticides application which indicated by high total P levels, and also high chlorpyrifos, carbofuran and paration residues. The physical condition of BK1 soil is also dominated by clay particles which causes the soil more solid. Increasing of fertilizer application is not always followed by increased plant productivity.</strong></p><p><strong> </strong></p><p><strong><em>Keywords</em></strong> - <em>Biofertilizer, PGPR, Rice field rhizosphere, Soil Bacteria</em></p>


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