Impact of intercropping system to minimise the sucking pests incidence in groundnut (Arachis hypogaea Linnaeus)

Author(s):  
P. Parthiban ◽  
C. Chinniah ◽  
R. K. Murali Baskaran ◽  
K. Suresh ◽  
A. Ravi Kumar

Field experiment was carried out during 2014 – 2015 at DARS, Chettinad, Sivagangai district of Tamil Nadu to find out cost-effective groundnut based inter-cropping system for the management of key insect pests. Groundnut (Arachis hypogaea Linnaeus; Variety: VRI II) when intercropped with bajra (Pennisetum glaucum L.; Variety: Co 7), maize (Zea mays L.; Variety; Co 6) and sorghum (Sorghum bicolor L.; Variety: Co 30) 4:1 ratio harboured significantly less mean population of sucking pests viz. leafhopper, Empoasca kerri Pruthi, Aphids, Aphis craccivora Koch and Thrips, Scirtothrips dorsalis Hood recording 23.05, 24.81 and 25.47 nos./10 plants, 21.27, 23.52 and 22.44 nos./2.5 cm shoot and 11.15, 12.62 and 12.19 nos./5 leaflet respectively, whereas intercropping with redgram (Cajanus cajan L.; Variety: VBN (Rg) 3), marigold (Tagetes erecta L.; Variety: MDU 1), sesame (Sesamum indicum L.; Variety: Co 1) and onion (Allium cepa L.; Variety: Co 1) recorded high mean population as compared to other cropping systems while groundnut as pure crop recorded the highest mean population of 33.14 nos./10 plants, 33.22 nos./2.5 cm shoot and 19.00 nos./5 leaflet respectively.

2016 ◽  
Vol 53 ◽  
pp. 28-33
Author(s):  
Veeramuthu Anbalagan ◽  
Michael Gabriel Paulraj ◽  
Savarimuthu Ignacimuthu ◽  
Kathirvelu Baskar ◽  
Jonas Gunasekaran

Natural enemies of insect pests in vegetable crops (brinjal, okra and tomato) were recorded and their diversity was studied in Kancheepuram and Tiruvallur Districts, Tamil Nadu. Natural enemies were collected by pitfall traps, sweeping nets and by hand picking from January 2011 to December 2013 twice in a month. Totally 129 species of predatory and parasitic insects were recorded. All the natural enemies were grouped into 50 families under eight different orders. Order hymenoptera contained the highest number of families and species. Among the predators, Coccinellidae (ladybird beetles) was found to be the dominant group with high number of species. It was clear that Coccinellidae, Staphylinidae, Carabidae and Pentatomidae were the predominant natural enemies throughout the study period. In 2013, formicidae formed the major family of occurrence from July to December in the vegetable fields; in this period the total number of individuals collected from all families was the highest. The maximum Shannon-Wiener diversity index was 3.70 during the second season in 2013. Maximum richness (5.99) was recorded in the second season of 2012. The variations in the diversity, species richness and evenness between two cropping systems are discussed in this paper.


2019 ◽  
Vol 40 (03) ◽  
Author(s):  
Adarsh S ◽  
Jacob John ◽  
Giffy Thomas

Climate change threatens global food and economic security. The decreased availability and import of pulses highlight the urgency of increased production. Pulse included cropping systems are the only way to enhance production as the area available are limited. Increased yield at spatial and temporal dimensions are focused here. Cropping system including pulses consists of inter cropping, sequential cropping, mixed cropping, relay cropping and paira/utera cropping. They compete for light, space, residual moisture content and available nutrients with companion crops. They improve soil properties, reduce pest and disease incidence. The specific role of pulses in cropping system includes high carbon sequestration capacity, low carbon footprint, fixing atmospheric nitrogen in soils, low water footprint, hydrogen fertilization of soils and improving soil biodiversity. Since they are easy to cultivate it creates employment opportunities for women. Pulses provide economic profitability to farmers. There lies a promising, sustainable and cost effective solution in these tiniest seeds.


2004 ◽  
Vol 2 (2) ◽  
pp. 28-34
Author(s):  
S. Pasupathy

One Of the imprfant commercial spice-cum vegetable crop, Chilli (Copsicum annuml i' cultivohd Over o substantial area in the southern districts Of Tamil Nadu, Where insect pests are a serious problem. Among them the sucking pests, namely, the Thrips, (Scirtothrips dorsalis), the aphids (Aphis gossypii gnd Myzus persicoe) lotus) cause Over 50 per cent reduction in yield. Earlier, more weightage had been given fo insecticides both contact and sy*micto manage these pests (Raiasri etc'. , 991 Thakare etal., 992, Misra 1992., Jaganath, 1993. , Chendete and Desh-pande 1984, Jagan mohan et 01. , 1980., Kareernet d, 1977.,Mote 1977 and Roo ond Ahamed, 1986).


2021 ◽  
Author(s):  
yasin Goac ◽  
Walelign Worku ◽  
Hussein Mohammed ◽  
Elias Urage

Abstract The study was conducted at Gofa, Humbo, Kindo koyisha and Konso districts of South Nation Nationalities and Peoples Region (SNNPR) from May 2016 to February 2017 with the objective to assess the limitations on cowpea production conceived by farmers, farmers traits of interest and the farming system of cowpea. Participatory rural appraisal tools, which include seven focus group discussions and survey with 150 individual farmers, were used to generate data. Data recorded were analyzed on SPSS software and descriptive statistics were applied. The results showed that 85.3% of the farmers surveyed were men and the size of families ranged from 6 to 9 at the household level. Almost (40%) produced cowpea for household consumption, while 21.3% reported its food and income generation. The average cowpea fields were 0.24 ha with 503 kg/ ha as an average seed yield. The results revealed that 92.7% of farmers grow local landraces, whose seeds are recycled for many consecutive seasons, while approximately 7.3% grow both improved and local landrace. Cultivars were generally cultivated as intercrop (92.7 %) with maize or sorghum. Many factors limiting cowpea production were identified, key of which were lack of improved varieties, disease and insect pests, drought, poor access to extension, poor access to credit services, low soil fertility, farmland shortage, inappropriate agronomic practices and storage pests. Farmers also specified to have developed few managing mechanisms to counter the restraints. Farmers showed preference for high yielding coupled with early maturing cowpea varieties that are in addition, resistant to pests and diseases, tolerant to drought ,good taste,large seed size, fast cooking and seed colour. Therefore,it is recommended that there be a cowpea improvement program that can address above-mentioned constraints as well as the prefrences of farmers for sustainable cowpea production in Southern Ethiopia. Background: The success of crop varieties growing is closely associated to the utilizations, biophysical conditions, the cropping systems in which the crop is combined and preferences of farmers’. Cowpea is one of the lowland legumes grown for food, cash crop and medicinal purposes in the different growing areas of Southern Ethiopia. It is ranks the 5th to 9th important legume crop for household food, nutrition, and income generation for cultivating farmers, which contributes significantly to food security of the region. In spite of its importance, the crop received little research attention in the development improved varieties, cowpea productivity remains low.Exploring and describing the current cowpea cropping system, production constraints and farmers varietal perefrences in the main production areas will help in defining the cowpea improvement priorities. Methods: The study was conducted in four cowpea-growing districts in South Ethiopia. Participatory rural appraisal tools including seven focus group discussion,key informants and survey with 150 individual farmers, were conducted in Gofa, Humbo,Kindo koyisha and Konso districts from May 2016 to February 2017 to collect information on production system, constraints and preferred traits. Data collected through the questionnaires were processed and analyzed using the Statistical Package for Social Sciences (SPSS) version 20.0 (SPSS, 2012). Analysis was performed for descriptive statistics, mean, frequencies and percentages. Cross tabulations were performed for data summary and chi-square analysis performed to test for significant differences between variables. Results: Farmers grow both local and improved varieties to meet their various goals in cowpea farming. Nearly 92.7 % of the farmers grow local landraces, whose seeds are recycled for many consecutive seasons, whilst approximately 7.3% grow both improved and local landrace. The results showed that 85.3% of the farmers surveyed were men and the size of families ranged from 6 to 9 at the household level. Almost (40%) produced cowpea for household consumption, while 21.3% reported its food and income generation. The average cowpea fields were 0.24 ha with 503 kg/ ha as the average grain yield. About 92.7% of cowpea growers associated cowpea with other crops, while 7.3 % of them grew the crop in pure stand. Cowpea grown in combination with maize (68.7 %) and 22.7 % with sorghum was the most encountered cropping system. The lack of improved varieties, disease and insect pests, drought, poor access to extension, poor access to credit services, low soil fertility, farmland shortage, inappropriate agronomic practices and storage pests are some of the important constraints affecting cowpea productivity. Framers showed preference for high yielding coupled with early maturing cowpea varieties that are in addition, resistant to pests and diseases, tolerant to drought ,good taste,large seed size, fast cooking and seed colour. Conclusion: Our results confirm the importance of cowpea both in the cropping systems and in contributing to ensure food security in the growing areas in South Ethiopia. Key production constraints and farmers’ varietal preferences were identified. The results of this study are helpful to breeders and agronomists to design appropriate strategies for sustainable cowpea production. Therefore,it is recommended that there be a cowpea development program that can address the above-mentioned constraints and the farmers’ preference for sustainable cowpea production in Southern Ethiopia. It implies that these findings can be used as the basis for designing research and development plans for continuous cowpea production and productivity by smallholder farmers in South Ethiopia.


2014 ◽  
Vol 11 (1) ◽  
pp. 7-22 ◽  
Author(s):  
S Marimuthu ◽  
P Subbian

Field experiments were conducted at the farm of Tamil Nadu Agricultural University, Coimbatore, India during 2007 and 2008 to assess the weed population, dry matter production, weed smothering efficiency and yield of seed cotton in a cotton based cropping system with conjunctive use of NPK and bioinoculants. Cotton intercropped with Sesbania along with application of Azospirillum and Pseudomonas recorded the lowest weed population and weed dry matter production. The maximum weed suppression of 54.5 and 44% was observed in cotton + Sesbania system as compared to pure crop of cotton during both the years. The maximum cotton equivalent yield of 2052 and 1895 kg ha-1 was recorded in cotton + onion system which was at par with cotton + Sesbania system with cotton equivalent yield of 2010 and 1894 kg ha-1 during 2007 and 2008, respectively. Combined application of 100 % recommended dose of NPK and bioinoculants recorded maximum cotton equivalent yield of 2460 and 2190 kg ha-1 during 2007 and 2008, respectively. DOI: http://dx.doi.org/10.3329/sja.v11i1.18371 SAARC J. Agri., 11(1): 7-22 (2013)


1998 ◽  
Vol 27 (2) ◽  
pp. 169-185 ◽  
Author(s):  
Emmanuel K. Yiridoe ◽  
Alfons Weersink

Cost-effectiveness is an important consideration in evaluating choices for meeting environmental quality objectives. Estimated crop yield response functions and the associated groundwater-nitrate pollution production functions were used to evaluate the optimal N fertilization and on-farm abatement costs for alternative cropping systems, with management choices at both the intensive and extensive margins. The cost-effective corn production system, which meets the Health Canada standard for nitrates with the highest returns ($278 ha–1) and lowest on-farm abatement cost ($248 ha–1), was a four-year corn-corn-soybean-wheat rotation under conventional tillage. At contaminant limits above the Health Canada standard, the cost-effective wheat cropping system shifted from a soybean-wheat rotation under no-tillage to a corn-soybean-wheat rotation under no-tillage.


2021 ◽  
Vol 13 (11) ◽  
pp. 6288
Author(s):  
Md Jahangir Alam ◽  
Abdullah- Al-Mahmud ◽  
Md Aminul Islam ◽  
Md Faruque Hossain ◽  
Md Akkas Ali ◽  
...  

Cropping systems in the Level Barind Tract (LBT) of Bangladesh are highly diverse, as Transplanted (T.) Aman and Boro (T. Boro) rice are a common practice in the area. Although. T. Aman is generally cultivated in the rainy (monsoon) season, but the T. Boro rice is the intensive irrigation-based winter rice with high establishment costs as a result of exhaustive tillage and high labours for transplanting of seedlings. Furthermore, pumping of a large amount of irrigation during T. Boro cultivation declines the level of groundwater, which is not environmentally friendly nor cost-effective. Therefore, the replacement of the T. Boro rice from the cropping pattern in the LBT area is the major concern of policymakers. In this context, a replicated three to four crop-based cropping systems (CS) field trial was conducted in LBT of Gaibandha, Bangladesh for consecutive three years (2018–2020) to evaluate productivity, profitability and sustainability of the multiple crop-based cropping systems. Among these CS, existing three crops based CS, CS1: T. Aman–Potato–T. Boro (introduction of the local potato in the existing cropping system) were compared with four crops based CS2: T. Aman–Potato–Cucumber–T. Aus (Introduction of high yielding potato, cucumber and T. Aus as an improved cropping system). After two years of observations, significantly higher system productivity (rice equivalent yield; REY) was found in the improved CS2 than that of existing CS1 in both years (two years’ average 49% or 11.1 t ha−1). As a result of the introduction of the high yielding potato, cucumber and T. Aus rice instead of the T. Boro rice. The CS2 was also found profitable as compared to the CS1 in terms of higher gross margin (by 74%), net return (double) and benefit-cost ratio (BCR) (1.69 vs. 1.44) due to higher gross return with slightly higher (by 28%) production cost. It is due to farmers received higher prices for potato, cucumber and two rice crops in the improved CS2 than the existing CS1. On the other hand, protein and energy output was lower (by 17% and 9%, respectively) in the CS2 than the existing CS1, due to the less content of protein and energy value in the vegetable cucumber. The results of the study revealed that crops diversification in the existing T. Boro based CS with high yielding potato, cucumber, and T. Aus rice, improved the system productivity, profitability and sustainability; which lead to improve the food security of the increasing population and also reduce the adverse effect on the environment.


2008 ◽  
Vol 15 (1) ◽  
pp. 61 ◽  
Author(s):  
E. VEROMANN ◽  
T. TARANG ◽  
R. KEVVÄI

To investigate the impact of different cropping systems, the pests, their hymenopteran parasitoids and predatory ground beetles present in two spring rape crops in Estonia, in 2003, were compared. One crop was grown under a standard (STN) cropping system and the other under a minimised (MIN) system. The STN system plants had more flowers than those in the MIN system, and these attracted significantly more Meligethes aeneus, the only abundant and real pest in Estonia. Meligethes aeneus had two population peaks: the first during opening of the first flowers and the second, the new generation, during ripening of the pods. The number of new generation M. aeneus was almost four times greater in the STN than in the MIN crop. More carabids were caught in the MIN than in STN crop. The maximum abundance of carabids occurred two weeks before that of the new generation of M. aeneus, at the time when M. aeneus larvae were dropping to the soil for pupation and hence were vulnerable to predation by carabids.


2016 ◽  
Vol 44 (1) ◽  
Author(s):  
P. Farsanashamin and A.S. Anilkumar

<p>A field experiment was conducted at College of Agriculture, Padannakkad, Kasaragod, Kerala state during 2012 to 2015 to develop appropriate cost effective practices for enhancing productivity and profitability of coconut based multi-storeyed cropping system involving a combination of coconut, noni, banana and long pepper in coastal sandy soil. The treatments consisted of eight combinations of four levels of NPK (100 per cent, 2/3 rd, 1/3 of the recommended NPK and basin management in the organic pathway) for coconut and two levels of NPK (100 and 75 per cent of the recommended dose) for the component crops in addition to five sole cropping systems namely, coconut (100 per cent NPK), coconut (organic), long pepper (100 per cent NPK), banana (100 per cent NPK) and noni (100 per cent NPK). Pooled analysis of the data revealed that basin management with 75 per cent NPK for component crops was found favourable for increasing the nut yield from 43 to 53 nuts palm-1 year-1. Soil properties and BCR of the system also improved as a result of the same treatment. Highest copra content (160.6 g nut-1) was recorded in the<br />organic basin management treatment supplied with 100 per cent NPK for component crops. An improvement in the soil nutrient status was also observed compared to the control. </p>


2021 ◽  
Vol 42 (6) ◽  
pp. 1470-1477
Author(s):  
U. Pirithiraj ◽  
◽  
R.P. Soundararajan ◽  
C.G.L. Justin ◽  
V. Lakshmanan ◽  
...  

Aim: Study was carried out to record the abundance and diversity of insects in jasmine (Jasminum sambac L.) ecosystem. Methodology: To determine insect pests, natural enemies and non-insect diversity, fortnight observations were taken from second fortnight of September'19 to March'20 on insect population at three adjacent locations. Abundance and diversity indices were computed using mean data. The management practices, presence of weeds and adjacent cropping systems were also recorded at three locations to determine the reasons for variation in the diversity of organisms. Results: A total of 3335 individuals arthropods belonging to 55 species, which included 32 species of herbivores and 23 species of natural enemies were recorded throughout the study period. Location 3 had perennial crops in the vicinity, un-weeded ecosystem with no chemical inputs. Among various diversity indices calculated, Margalef Richness Index of herbivores was higher at location 3 (1.67) than location 1 (1.17) and 2 (0.76). Interpretation: The abundance and diversity of insects in different jasmine ecosystem depends on the chemical inputs and adjacent cropping system.


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