scholarly journals Fertilizer for Sweet Pepper Under Drip Irrigation in an Oxisol in Northwestern Puerto Rico

1969 ◽  
Vol 65 (2) ◽  
pp. 123-128
Author(s):  
J. C. W. Keng ◽  
T. W. Scott ◽  
M. A. Lugo-López
Keyword(s):  
Drip Irrigation ◽  
Nutrient Management ◽  
Irrigation System ◽  
Sweet Pepper ◽  
Dry Season ◽  
Low Fertility ◽  
Wet Season ◽  
Promising Alternative ◽  
Broadcast Application ◽  
K Fertilizer

A drip irrigation system using porous plastic tubing was designed to study operational techniques of drip irrigation and fertilizer management in a highly weathered, leached, relatively low fertility, acid Oxisol. Sweet pepper (Capsicum annuum) was the test crop. All plots received an initial broadcast application of a 10-4.4-8.3 N-P-K fertilizer at the rate of 80 kg/ha. The experiment followed a randomized complete block layout with 4 treatments and 6 replications. The treatments were as follows: 1) N and K injected into the drip system, P banded; 2) banded N, P and K with drip irrigation; 3) broadcast N, P and K with drip irrigation; and 4) control-drip irrigation, no N, P and K other than the initial overall broadcast application. All treatments, except the control, received a total of 56.8 g of a 10-10-10 fertilizer per plant and all were uniformly drip irrigated according to pan evaporation data. Two crops were grown: one in the dry season and one in wet season. Yields were significantly different among all treatments for the dry season crop, with a high of 82.62 kg/ha for the treatments where Nand K were injected into the drip system and a low of 31.54 kg/ha for the control. For the wet season crop, no significant yield differences were found when fertilizer was injected into the drip system and when banded, but both these treatments were superior in yield to that of broadcast. These three treatments were superior to the control, with more than 100% increase. Drip irrigation is a promising alternative to currently used water-nutrient management methods for Oxisols in the wet-dry tropics.

KOMPOSISI DAN DOMINASI PATOTIPE Xanthomonas oryzae pv. oryzae, PENYEBAB PENYAKIT HAWAR DAUN BAKTERI PADA TANAMAN PADI DENGAN SISTEM PENGAIRAN BERBEDA DI KABUPATEN KARAWANG

2018 ◽  
Vol 16 (3) ◽  
Author(s):  
Dini Yuliani ◽  
Sudir Natasuwirya
Keyword(s):  
Disease Severity ◽  
Irrigation System ◽  
Dry Season ◽  
Xanthomonas Oryzae ◽  
Type I ◽  
Wet Season ◽  
Irrigation Systems ◽  
Type Iv ◽  
Resistant Varieties ◽  
Cropping Seasons

Bacterial leaf blight (BLB) is the major disease of rice caused by the bacteria Xanthomonas oryzae pv. oryzae (Xoo), that has various pathotypes making it difficult to control. This research was aimed to determine Xoo pathotype group in irrigated paddy fields with different of planting time based on differences of irrigation system in Jatiluhur Reservoir. The research was conducted in Karawang District the wet season (WS) of 2013/2014 and dry season (DS) of 2014 through survey and sampling of infected rice leaves of BLB. Isolation of Xoo bacte-ria was done in the laboratory by using dilution methods. Xoo pathotype test was carried out by inoculating Xoo isolate on five different varieties in Indonesian Center for Rice Research’s green house, West Java. Observation of disease severity was done by measuring symp-toms of the disease that appeared at two and four weeks after inoculation. The disease severity of ?11% was classified as resistant (R), and for the disease severity of >11% was classified as susceptible (S). The results obtained a total of 602 Xoo isolates from rice plant samplings of irrigated rice fields in Karawang with irrigation systems I, II, III, and IV. At WS 2013/2014 was obtained 448 Xoo isolates consists of 29.69% of pathotype III; 40.85% of pathotype IV, and 29.46% of pathotype VIII. While, at DS 2014 was obtained 154 Xoo isolates consists of 1.95% of pathotype III, 53.25% of pathotype IV, and 44.80% of pathotype VIII. The areas with Type I of irrigation systems were domi-nated by Xoo pathotype IV in two cropping seasons. The areas with Type II of irrigation system dominated by Xoo pathotype IV in the wet season, while the dry season was dominated by Xoo pathotype VIII. The areas with Type III of irrigation system were dominated by Xoo pathotype III in the wet season, whereas during dry season was dominated by Xoo pathotype IV. The areas with Type IV of irrigation sys-tem were dominated by Xoo pathotype IV during wet season. Over all, in the dry season, Xoo pathotype IV was the dominant pathotype especially in irrigation systems Type I and IV. The dominance of Xoo pathotype can determine the resistant varieties that grown in the areas with different planting times on different irrigation systems.

scholarly journals Design, Development and Evaluation of a Bucket Drip Irrigation System for Dry Season Vegetable Production in South-Eastern Nigeria

2021 ◽  
Vol 2 (1) ◽  
pp. 183-192
Author(s):  
Donatus Okwudiri IGBOJIONU ◽  
Christopher Ikechi OBINECHE ◽  
Juliet Nnennaya IGBOJIONU
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Dry Season ◽  
Internal Diameter ◽  
Vegetable Production ◽  
Drip Irrigation System ◽  
Design Development ◽  
Short Supply ◽  
Uniformity Coefficient ◽  
South Eastern

In South-Eastern Nigeria, during the dry season from November to April, vegetables are always in short supply and consequently expensive. Hence, there is a need to design, develop an affordable and simple bucket drip irrigation system that can be used to grow vegetables under limited water supply conditions. Using the estimated consumptive use of the proposed crop okra and the area occupied by the crop stands, the capacity of the bucket as a source of water was computed. The bucket filled with water was placed at a head of 1 m. The water was allowed to flow through emitters located at 30 cm intervals along the lateral lines laid at the land slope of 2%. Two lengths of PVC tubes 11 m long, 1 mm thick and internal diameters 16 mm, Micro-tubes 5 cm long and internal diameter 1.2 mm, were used. The discharge from each emitter was determined through volumetric measurements. The system was then evaluated using the Christiansen’s method and the Merriam and Keller’s method and assessed using ASAE standards 1996(a) and 1996(b) performance rating. 22 sampled emitters evaluated from the lateral line showed total energy drop of 2.5 x 10-5 m, flow variation (FV) of 8%, coefficient of variation (CV) of emitter discharge of 0.02, uniformity coefficient (UC) of 97% and emission uniformity (EU) of 73%. The results show that the system is efficient and can be used by farmers to meet the demands for vegetables in the dry season.

scholarly journals Yields of Organically Grown Sweet Pepper Cultivars and Lines during the Hot-wet and Cool-dry Season in the Tropics

2009 ◽  
Vol 19 (2) ◽  
pp. 418-422 ◽  
Author(s):  
Peter Juroszek ◽  
Hsing-Hua Tsai
Keyword(s):  
Organic Farming ◽  
Farming Systems ◽  
Sweet Pepper ◽  
Dry Season ◽  
Viable Alternative ◽  
Conventional Farming ◽  
Wet Season ◽  
Commercial Cultivars ◽  
The Tropics ◽  
Cool Dry Season

Organic production is considered by many researchers to be a viable alternative to conventional farming systems. Equivalent yields already have been demonstrated in several studies. The major objective of our study was to collect data on total and marketable fruit yields of sweet pepper (Capsicum annuum) under organic farming conditions in the tropics. Experiments were conducted during the hot-wet season from 7 Mar. 2007 to 30 July 2007 and during the cool-dry season from 27 Nov. 2007 to 7 Apr. 2008. The six experimental entries included four commercial F1 hybrids and two genotypes bred at AVRDC–The World Vegetable Center (Shanhua, Taiwan). During the hot-wet season, high total (44.6–55.7 t·ha−1) and marketable yields (36.9–45.6 t·ha−1) were achieved under organic farming conditions in the open field similar to yields of conventionally produced sweet pepper in previous field experiments at AVRDC. The total yield of the commercial cultivars Queen Star and Hercules exceeded 50 t·ha−1; however, this was not significantly different compared with the other trial entries. During the cool-dry season, the total (25.4–45.7 t·ha−1) and marketable yields (21.1–37.8 t·ha−1) of all trial entries were reduced, probably because the relatively late planting date in November and relatively low air temperature resulted in reduced fruit set. The commercial cultivars Andalus and Green Bell Improved realized in both seasons a total fruit yield of more than 40.0 t·ha−1, suggesting that these can be grown successfully in hot-wet and cool-dry seasons. The relatively high yields of sweet pepper achieved on-station under tropical climatic conditions may encourage farmers and agricultural stakeholders to consider organic farming approaches as a viable alternative to conventional farming systems.

scholarly journals The combined irrigation of sweet pepper

2021 ◽  
Vol 843 (1) ◽  
pp. 012058
Author(s):  
S A Kurbanov ◽  
D S Magomedova
Keyword(s):  
Drip Irrigation ◽  
Land Reclamation ◽  
Irrigation System ◽  
Experimental Studies ◽  
Crop Productivity ◽  
Sweet Pepper ◽  
Climatic Conditions ◽  
Department Of Agriculture ◽  
The Republic ◽  
Growing Conditions

Abstract The advantages of drip irrigation of many agricultural crops are well known, but it does not allow to regulate the phytoclimate in the “environment-plant” system, which is especially important for the conditions of the hot and dry climate of the Republic of Dagestan. Currently, the efficiency of fine sprinkling on the background of drip irrigation was insufficiently studied, as questions remain the combined effect of irrigation on crop productivity in real climatic conditions on the effectiveness of combination with other agronomic techniques, etc. Experimental studies were conducted on the experimental field of the Department of Agriculture, Soil Science and Land Reclamation in the educational and experimental farm of the Dagestan State Agrarian University. The main purpose of the research was to determine the parameters of the combined irrigation technology, its effect on the microclimate of the irrigated field and the phytoclimate of plants, as well as the productivity of sweet pepper. As the result of experimental studies, it was found that the use of a combined irrigation system (drip irrigation + fine sprinkling) when cultivating sweet pepper allows to obtain an additional 9.4 t/ha of marketable products by optimizing the growing conditions.

scholarly journals EFEKTIVITAS PENGGUNAAN TEKNOLOGI PENGELOLAAN HARA SPESIFIK LOKASI PADA TANAMAN PADI DI LAHAN SAWAH IRIGASI SULAWESI TENGGARA

2016 ◽  
Vol 19 (3) ◽  
pp. 227 ◽  
Author(s):  
Zainal Abidin ◽  
Samrin , ◽  
Didik Raharjo
Keyword(s):  
Nutrient Management ◽  
Rice Yield ◽  
Dry Season ◽  
Component Technology ◽  
Wet Season ◽  
Irrigated Rice ◽  
Site Specific ◽  
Rice Area ◽  
Growth Production ◽  
Production Target

<p>Pemupukan merupakan salah satu komponen teknologi yang penting dalam upaya peningkatan produksi padi,namun teknologi rekomendasi pemupukan yang digunakan selama ini kurang spesifik. PHSL adalah aplikasi berbasis komputer yang dapat digunakan untuk memperoleh rekomendasi pemupukan yang spesifik lokasi. Kajian dilakukan untuk mengetahui keragaan pertumbuhan, produksi, dan aspek ekonomi penerapan teknologi PHSL pada lahan sawah irigasi di Sulawesi Tenggara. Kajian dilakukan melalui kaji terap dengan membandingkan antara teknologi pemupukan berdasarkan PHSL dengan teknologi pemupukan berdasarkan kebiasaan petani selama dua musim tanam yaitu pada MH 2011/2012 (Oktober 2011 – Januari 2012) pada luasan 4 ha yang melibatkan 40 orang petani dan MK 2012 (Juli – November) pada luasan 21,4 ha melibatkan 25 orang petani di Kecamatan Uepai Kabupaten Konawe.Hasil kajian menunjukkan bahwa jumlah anakan produktif dan hasil padi sawah yang menggunakan rekomendasi pemupukan PHSL lebih tinggi dan berbeda nyata sementara jumlah gabah hampa lebih rendah dan berbeda nyata dibandingkan dengan teknologi petani. Produktivitas padi yang menggunakan rekomendasi pemupukan PHSL lebih tinggi 20% - 34% dibandingkan dengan teknologi eksisting petani. Aplikasi PHSL relatif baik dalam menentukan dosis pupuk N, P dan K dengan tingkat pencapaian target produksi mencapai 87,5% pada MT I dan 89,5% pada MT 228 Jurnal Pengkajian dan Pengembangan Teknologi Pertanian, Vol. 19, No.3, November 2016: 227-241 II. Penerapan teknologi PHSL memberikan perbedaan keuntungan sebesar Rp3.912.200 pada MT I dan Rp2.838.700 pada MT II. Nilai MBCR pada MT I dan MT II masing-masing 5,12 dan 5,70, menunjukkan rekomendasi pemupukan PHSL layak diterapkan.</p><p><strong>ABSTRACT</strong></p><p><strong></strong>Effectiveness of Site Specific Nutrient Management (SSNM) Application for Rice on Irrigated Land at Southeast Sulawesi. Fertilizing technology is a component technology to increase the rice production, otherwise the existing recommendation for fertilizing is not locally specific. Site Specific Nutrient Management (SSNM) is a software technology to obtain the site specific fertilizing recommendation. The research was applied to analyze the performance of plant growth, production, and economic aspect on irrigated rice area in South East Sulawesi. The research was conducted using action research by comparing SSNM with farmer existing technology for two seasons including wet season (October 2011 – January 2012) for 4 ha area collaborated with 40 farmers and dry season (Juli – November 2012) for 21,4 ha and collaborated with 25 farmers at Uepai Sub District in Konawe District. The result showed that tillering quantity and rice yield of those using SSNM recommendation were significantly higher and the number of empty grains was significantly lower than farmer’s practice as well. The rice productivity using SSNM recommendation was higher 20 – 34% than farmer’s practice. SSNM software was compatible to use in setting doses of N, P and K recommendation with rate of production target reached 87,5% for season I and 89,5% for season II. The application of SSNM technology contributed to increase income by IDR3.912.200 in wet season and IDR2.838.700 in dry season. MBCR value were 5,12 in wet season and 5,70 in dry season those showed SSNM technology was feasible to be applied.</p>

RANCANG BANGUN ALAT PENYIRAMAN TANAMAN DENGAN POMPA OTOMATIS SISTEM IRIGASI TETES PADA LAHAN KERING (Design Tools Watering Plants With Automatic Pump to Drips Irrigation System For Dry Land)

2015 ◽  
Vol 3 (1) ◽  
pp. 95-101
Author(s):  
Amuddin Amuddin ◽  
Joko Sumarsono
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Dry Season ◽  
Power Calculation ◽  
Drip Irrigation System ◽  
Crop Water ◽  
Land Area ◽  
Water Requirements ◽  
Dry Land ◽  
Crop Water Requirements

This study aims to (1) Designing wake automatic watering equipment on dry land, (2) Determine the effective and efficient manner, (3) Knowing more specific performance in the use of electrical power. The benefits of this research (1) automated tool that can help overcome the shortage of water in the dry season in dry land, (2) helping farmers in overcoming problems crop irrigation in the dry season / dry, (3) scientific knowledge in automation watering drip irrigation system with pump solar energy as renewable energy. The research was conducted in the village of Batu Layar Sandik District of West Lombok in April 2011 to October 2011. This study uses an experimental method with the following steps: (a) Stage Design, (b) the assembly stage and followed by (c) Phase characterization automatic watering tool. At the stage of design executed by: measuring the ambient temperature (0C), measure wind speed (km / h), determine to what size of pump power (watts); followed by stages of assembly. Then proceed with step kerakterisasi automatic watering tool in the characterization of applying completely randomized design (CRD) factorial design composed 8 treatment. The first factor is the rotation of the motor pump with 4 variations of rotation, namely (1600, 1800, 2200 and 2400 rpm). Each treatment each repeated 3 times. While the provision of irrigation water treatment drops on each network is divided into blocks, namely (I, II, III and IV blocks) are taken based on the treatment of the above factors. Each treatment was observed parameters-parameters of chilli crop water requirements. The parameters characterizing automatic sprinklers include: efficiency of crop water requirements and water use efficiency in total. Results showed (1) automatic watering device can regulate the amount and uniformity of discharge of water droplets in every hole in the use of water for plants drip irrigation system with an average of (± 0.5632 liters /crop), the one-time watering at each plants with 2400 rpm motor pump. (2) System drip irrigation watering holes aimed directly at the plant, the amount of water used is very small. So that the area can be watered plants covering an area of ​​1.74 mx 2.09 m = 3.6366 m2 / plot. With a total land area is tested for this type of tomato plant and a land area of ​​39.78 ± m2 for the type of chilli plants, bringing the total land area of ​​± 68.21 m2 on the pump discharge position of  ±72.50578 liters/minute, and then flowed through 6 Fruit of the pipeline with the average number ±12.084297 liters perpipe on each plot. While in the pipeline, there are 16 pieces of water drain holes are directed at each plant to remove water in the respective holes per hole ± 0.755268542 liters/minute. (3) The electric power is used to drive the pump motor in this study is similar to the output ±0.336796 HP the uotput equal to ±0.336796 HP x 0.7457 kWatt = 251.25 watts, where as the unused power of ± 1.333333 watts with efisiensin power to the pump motor power calculation is divided power is used together with efficiency = 251.25 watts/1.333333 watts x 100% = 18843.75%.   Keywords: chili, dry land, automatic watering   ABSTRAK   Penelitian ini bertujuan untuk (1) Merancang bangun peralatan penyiraman otomatis pada  lahan kering, (2) Menentukan cara yang efektif dan efisien, (3) Mengetahui unjuk kerja yang lebih spesifik dalam penggunaan daya listrik. Manfaat penelitian ini (1) Alat otomatis yang dapat membantu mengatasi kekurangan air pada musim kemarau di lahan kering, (2) membantu petani dalam mengatasi masalah pengairan tanaman pada musim kemarau/kering, (3) pengetahuan ilmiah dalam otomatisasi penyiraman sistem irigasi tetes dengan pompa energi  surya sebagai energi terbarukan. Penelitian ini di lakukan di Desa Sandik  Kecamatan Batu Layar Kabupaten Lombok Barat pada bulan April 2011 sampai Oktober 2011. Penelitian ini menggunakan metode eksperimental dengan tahapan: (a) Tahap Rancang Bangun, (b) Tahap perakitan dan dilanjutkan dengan (c) Tahap  karakterisasi alat penyiraman otomatis. Pada tahapan rancang bangun dilaksanakan dengan: mengukur temperatur lingkungan (0C), mengukur kecepatan angin (km/jam), menenetukan ukuran daya pompa (watt);  dilanjutkan dengan tahapan perakitan. Kemudian dilanjutkan dengan tahap kerakterisasi alat penyiraman otomatis Dalam karakterisasi menerapkan Rancangan Acak Lengkap (RAL) rancangan faktorial yang disusun 8 perlakuan. Faktor pertama adalah putaran motor pompa dengan 4 variasi putaran yaitu (1600, 1800 , 2200 dan 2400 rpm). Setiap perlakuan masing-masing diulang 3 kali. Sedangkan perlakuan pemberian air irigasi tetes pada setiap jaringan dibagi dalam blok yaitu (I, II, III dan IV blok) yang  diambil berdasarkan perlakuan dari  faktor diatas. Setiap perlakuan diamati parameter-perameter kebutuhan air tanaman cabe. Adapun parameter-parameter karakterisasi alat penyiram otomatis meliputi: efisiensi kebutuhan air tanaman dan efisiensi penggunaan air total. Hasil penelitian menunjukkan (1) Alat penyiraman otomatis ini dapat mengatur jumlah dan keseragaman debit tetesan air disetiap lubang dalam penggunaan air untuk tanaman sistem irigasi tetes dengan rata-rata sebesar (±0,5632 liter/tan), dalam satu kali penyiraman pada setiap tanaman dengan putaran motor pompa 2400 rpm. (2) Sistem penyiraman irigasi tetes diarahkan tepat pada lubang tanaman, dengan jumlah air yang digunakan sangat kecil. Sehingga luas areal tanaman yang dapat disirami seluas 1,74 m x 2,09 m=3,6366 m2/petak. Dengan total luas lahan yang dicobakan untuk jenis tanaman tomat dan luas lahan sebesar ±39,78 m2 untuk jenis tanaman cabe, sehingga total luas lahan sebesar ±68,21 m2 pada posisi debit pompa sebesar ±72,50578 liter/menit, kemudian dialirkan melalui 6 buah pipa penyalur dengan jumlah rata ±12,084297 liter per pipa pada masing-masing petak.  Sedangkan dalam satu pipa terdapat 16 buah lubang pengeluaran air yang diarahkan pada tiap-tiap tanaman dengan mengeluarkan air dimasing-masing lubang ±0,755268542 liter per lubang/menit.  (3) Daya listrik yang digunakan  untuk menggerakkan  motor pompa dalam penelitian ini adalah 0,336796 HP dengan keluaran setara 0,336796 HP x 0,7457 Kwatt = 251,25 watt, sedangkan daya  listrik yang terpakai sebesar ±1,333333 watt dengan efisiensi daya dengan perhitungan daya motor pompa dibagi daya listrik yang digunakan sama dengan efisiensi = 251,25 watt/1,333333 watt x 100% = 18843,75%.   Kata kunci: cabe, lahan kering, penyiraman otomatis

scholarly journals (214) Adult Pear Response to Integrated Nitrogen Fertigation and Drip Irrigation System

HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1084B-1084
Author(s):  
Xinhua Yin ◽  
Clark Seavert ◽  
Jinhe Bai
Keyword(s):  
Irrigation Water ◽  
Drip Irrigation ◽  
Agricultural Research ◽  
Irrigation System ◽  
Irrigation Management ◽  
Soil Surface ◽  
N Fertilizer ◽  
Management Systems ◽  
Drip Irrigation System ◽  
Broadcast Application

Responses of adult pear to the integrated N fertigation and drip irrigation system have not been documented in Oregon. A field trial was conducted on adult pear at the Mid-Columbia Agricultural Research and Extension Center, Hood River, Ore., in 2005. Two N and water management systems (integrated N fertigation and drip irrigation system; and broadcast application of dry N fertilizer to the soil surface and microsprinkler irrigation system) were compared on pear cultivars of Bartlett and Golden Russet Bosc, and rootstocks of OH×F97 and OH×F87. The responses of these cultivars and rootstocks to the integrated N fertigation and drip irrigation system were similar. The integrated N fertigation and drip irrigation system consumed 1450 m3·ha-1 of irrigation water during the entire season from May to September, reducing irrigation water use by 73% compared with 5297 m3·ha-1 under the current system—broadcast application of dry N fertilizer to the soil surface and microsprinkler irrigation system averaged over the four cultivar and rootstock combinations. The fruit yield was statistically similar for the integrated N fertigation and drip irrigation system and the broadcast application of dry N fertilizer and microsprinkler irrigation system on the average of the four cultivars and rootstocks. Differences in fruit size and color were negligible between the two N and irrigation management systems. Overall, our results suggest that adopting the integrated N fertigation and drip irrigation system does not cause significant reduction in yield or quality of adult pear; the integrated N fertigation and drip irrigation system could be a profitable and environmentally sound management alternative for pear production.

scholarly journals Imidacloprid Applied Through Drip Irrigation as a New Promising Alternative to Control Mealybugs in Tunisian Vineyards

2010 ◽  
Vol 50 (3) ◽  
pp. 315-319 ◽  
Author(s):  
Ramzi Mansour ◽  
Fatma Youssfi ◽  
Kaouthar Lebdi ◽  
Salah Rezgui
Keyword(s):  
Drip Irrigation ◽  
Developmental Stages ◽  
Insect Pests ◽  
Irrigation System ◽  
Integrated Management ◽  
Management Program ◽  
Drip Irrigation System ◽  
Promising Alternative ◽  
Significant Difference

Imidacloprid Applied Through Drip Irrigation as a New Promising Alternative to Control Mealybugs in Tunisian VineyardsMealybugs are serious insect pests in Tunisian vineyards where they can cause major production losses. Thus, a management program of these insects is a priority for grape growers. A summer pesticide trial was conducted in a vineyard, located in the Cap-Bon Region of Tunisia. The trial was carried out to assess the use of imidacloprid, a systemic insecticide, against mealybugs on vine. Imidacloprid was applied through the drip irrigation system for each vine and was then compared to methidathion, a contact insecticide. Imidacloprid was found to be more effective than methidathion on all mealybug developmental stages. In addition to its outstanding, up to 100% efficiency, imidacloprid provided an interesting long-term control of mealybugs. No significant difference was found between the two imidacloprid rates (1 and 2 ml/vine). Methidathion generated an overall low to intermediate efficacy on mealybugs and was more effective on both first instar nymphs and adult females than on the other mealybug developmental stages. Thus, imidacloprid applied through a drip irrigation system is a new promising option to control mealybugs in vineyards. For this reason it can be employed in an integrated management program against these pests in the Tunisian grape-growing area.

ESTIMATION OF CONSUMPTIVE USE OF POTATO CROP PIANTED UNDER DRIP IRRIGATION SYSTEM BY USING SWRT TECHNOLOGY

2020 ◽  
Vol 10 (1) ◽  
pp. 271-282
Author(s):  
J.N. Abedalrahman ◽  
R.J. Mansor ◽  
D.R. Abass
Keyword(s):  
Water Consumption ◽  
Drip Irrigation ◽  
Soil Depth ◽  
Irrigation System ◽  
Potato Crop ◽  
Block Design ◽  
Organic Fertilizer ◽  
Control Treatment ◽  
Drip Irrigation System ◽  
Spring Season

A field experiment was carried out in the field of the College of Agriculture / University of Wasit, located on longitude  45o   50o   33.5o   East and latitude 32o 29o 49.8o North, in Spring season of the agricultural season 2019, in order to estimate the water consumption of potato crop using SWRT technology and under the drip irrigation system. The experiment was designed according to Randomized Complete Block Design (RCBD) with three replications and four treatments that include of the SWRT treatment (the use of plastic films under the plant root area in an engineering style), and the treatment of vegetal fertilizer (using Petmos), organic fertilizer (sheep manure), and the control treatment . Potato tubers (Solanum tuberosum L.)  var. Burin was planted for spring season on 10/2/2019 at the soil depth of 5-10 cm. The highest reference water consumption for the potato crop during the season was calculated by Najeeb Kharufa, which was 663.03 mm. The highest actual water consumption for the potato crop during the season for the control treatment was 410.1 mm. The results showed increase in the values of the crop coefficient (Kc) in the stages of tubers formation and tubers filling stage as compared to the vegetative and ripening stages, ranged from 1.37-1.92 for the two stages of tubers formation and tubers filling. The SWRT treatment gave the highest water use efficiency during the season, was 3.46 kg m-3 .

Удобрение перца сладкого

2018 ◽  
Author(s):  
V.A. Borisov ◽  
A.M. Menshikh ◽  
V.S. Sosnov ◽  
G.F. Monakhos
Keyword(s):  
Drip Irrigation ◽  
Sweet Pepper ◽  
Water Soluble ◽  
Mineral Fertilizers ◽  
High Quality ◽  
Organic Mineral ◽  
Soluble Fertilizer

Показано действие минеральных удобрений, микрокристаллического комплексного водорастворимого удобрения «Мастер» и органоминерального наноудобрения с ростостимулирующей активностью «Арксойл» при капельном орошении на урожайность и качество сладкого перца нового гибрида F1 Темп. Сочетание основного удобрения с листовой и корневой подкормками позволяет получить до 65 т/га плодов перца высокого качества.The action of mineral fertilizers, microcrystalline complex water soluble fertilizer Master and organic mineral nano-fertilizer with growth-stimulating activity Arksoil under drip irrigation on the productivity and quality of sweet pepper of the new hybrid F1 Temp is shown. The combination of basic fertilizer with leaf and root fertilizing allows to obtain up to 65 t/ha of pepper fruits of high quality.

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