scholarly journals Effect of Combined Application of Organic and Inorganic Fertilizers on Peanut Production

2006 ◽  
Vol 6 (1) ◽  
pp. 31-46
Author(s):  
Rosalia Briones ◽  
◽  
Pedro Pascual ◽  

Plant height, leaf area index, number of pods per plant, and seed yield were significantly influenced by the application of organic and inorganic fertilizer combination. Plant which received inorganic fertilizer alone (T1) grew taller (97.38 cm), developed larger leaf area index (1.06) and more pods per plant (102.93), and produced higher yield (1.80 t ha1) than those subjected to T0, T3 and T4 treatments. Plots applied solely with inorganic fertilizer generated the highest net income among the different treatments used.

Author(s):  
Jaiz Isfaqure Rahman ◽  
D. N. Hazarika ◽  
D. Bhattacharjee

A field experiment was carried out at Instructional cum Research Farm, Department of Horticulture, Biswanath College of Agriculture, AAU, Biswanath Chariali to study the effects of organic manures and inorganic fertilizer on leaf characters of banana cv. Amritsagar (AAA) during 2016-2017. The research work was carried out with the treatments as follows T1: FYM (Farm Yard Manure) + Microbial Consortia, T2: Enriched Compost, T3: Vermicompost, T4: Microbial Consortia, T0: RDF (FYM + NPK). Healthy suckers were planted in each plot with spacing of 2.1m x 2.1m on 27th May 2016. The treatments T1, T2, T3 and T4 were laid out in certified organic block in RBD with 5 replications while the treatment T0 was laid out outside the organic block with five replications. In the organics, T1 recorded the highest number of functional leaves (7.97, 12.46 and 5.37) in vegetative stage, shooting stage and harvesting stage respectively. Highest leaf area of 2.69 m2 at vegetative stage and 11.17 m2 at shooting stage were recorded in T1 while lowest leaf area of 2.41 m2 at vegetative stage and 8.89 m2 at shooting stage were recorded in T4. Leaf area index was highest in T1. Chlorophyll content index in both vegetative stage (45.29) and shooting stage (65.56) was also highest in T1. Comparing the leaf characters (number of functional leaves, leaf area, leaf area index and chlorophyll content index) under organic treatments with that of T0 treated plants, it was found that plants treated with inorganic fertilizer had more number of functional leaves and better leaf character than that of the plants treated with organics.


2017 ◽  
pp. 70-86 ◽  
Author(s):  
Raynilda Baoy ◽  
Dionesio Bañoc

The study evaluated the effects of organic and inorganic fertilizers on the growth and yield of two lowland rice varieties; determined the proper fertilizer combination; and evaluated the profitability of rice production as influenced by the combined application of organic and inorganic fertilizers. This was laid out in split plot arranged in a RCBD design with variety and fertilizer treatments as the main plot and subplot, respectively. Results revealed that the period from sowing to heading, shoot dry weight, number of filled grains per panicle and weight of 1,000 grains were significantly influenced by the variety. The yield, yield components and harvest index (HI) were significantly influenced by fertilizer application. A significant interaction effect was noted on the period from sowing to heading as observed that inbred rice (NSIC Rc212) headed late than hybrid (TH82). Plants applied with 120-60-60 kg ha-1 N, P2O5 and K2O produced taller height, larger LAI, longer panicles, more productive tillers and filled grains, and consequently highest grain yield and HI. These plants also produced the heaviest root and shoot dry weights resulting to higher root shoot ratio compared to unfertilized plants. Highest net income was obtained in plants applied with inorganic fertilizer at the rate of 120-60-60 kg ha-1 N, P2O5 K2O due to high grain yield. Irrespective of fertilizer treatments, inbred rice was more profitable than hybrid. Highest production cost was incurred in plants applied with pure organic fertilizer due to the high cost of the material.


2016 ◽  
pp. 122-133
Author(s):  
Bonievic Sarcol ◽  
Ulysses Cagasan

One common approach to increase crop production is through multiple cropping systems. This study was conducted to (1) evaluate the growth and yield of peanut as influenced by time of planting sweetpotato as intercrop; (2) determine the appropriate time of planting peanut and sweetpotato that would give their respective optimum yields; and (3) determine the profitability of growing peanut in combination with sweetpotato as influenced by time of planting the crops in an intercropping scheme. Results of the study showed that peanut’s maturity, leaf area index (LAI), number of seeds pod and number of pods plant were significantly (p<0.05) increased by the time of planting sweetpotato as intercrop. Sweetpotato planted later than peanut significantly (p<0.05) improved the number of lateral vines plant, length of main vine, and fresh herbage yield of sweetpotato. Yield and yield components and harvest index of sweetpotato were not significantly (p <0.05) affected by the time of planting the crops. A net income of Php 66,508.00 was obtained from plots planted with peanut + sweetpotato regardless of time of planting. All intercropping treatments had a leaf area index (LER) of greater than one which means that peanut and sweetpotato are a good combination in an intercropping scheme compared to planting peanut as monocrop.


2005 ◽  
Vol 62 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Maurício dos Santos Simões ◽  
Jansle Vieira Rocha ◽  
Rubens Augusto Camargo Lamparelli

A knowledge about the temporal development of agronomic variables in sugarcane is a very important aspect for the development of crop yield prediction models using remote sensing, and further studies are still needed. This paper describes the temporal evolution of sugarcane biophysical parameters, such as total biomass, leaf area index, number of plants per meter, and productivity. During two seasons, a commercial field in Araras/SP, planted with variety SP80-1842, on the 4th and 5th cuts, was monitored on eight different dates, and data were obtained for 2 m of sugarcane in three crop rows at 18 sampling points. Linear and multiple regression analyses were used to study growth analysis and to correlate agronomic variables (leaf area index and number of plants per meter) with biomass and productivity. Gompertz model, a sigmoidal curve, was the best adjustment curve for total biomass and yield in relation to days after cutting (r² = 0.8987 and r² = 0.9682, respectively); number of plants and leaf area index showed best fit with a cubic exponential model and a quadratic exponential model, respectively. Total biomass and cane productivity were well correlated with LAI in the first two stages of the sugarcane cycle using linear regression. At the end of the cycle, total biomass and cane productivity were more related to number of plants, and lower r² values than in other stages were obtained by the models.


2019 ◽  
Vol 21 (1) ◽  
pp. 21
Author(s):  
Niken Pusparini ◽  
Dwi Harjoko ◽  
Retna Bandriyati Arniputri

<p style="text-align: justify;">This study aims to examine the use of human hair waste as a substrate hydroponic media in enhancing scientific innovation and agricultural development. This research was conducted in a greenhouse, Faculty of Agriculture, Sebelas Maret University, Surakarta, from July 2018 to October 2018. This experimental using a completely randomized design (CRD) method with one treatment factor and 14 levels repeated 4 times. The treatment includes washing hair waste (water, NaOH and detergent) and a combination of hair waste: husk charcoal (1: 3; 1: 2 and 3: 1). In this study, the control treatment used sand media. Observation variables observed were leaf area index, number of leaves, plant height, stem diameter, root length, root weight, root volume, fresh weight and dry weight of plants. Data acquisition was analyzed by analysis of variance and if there were significant differences, further testing was carried out with Duncan Multiple Range Test (DMRT) at the level of 5%. The results showed that human hair waste was less optimal as an alternative medium for hydroponic substrate systems. Treatment of hair waste: combination of 1: 3 husk charcoal in all washings gives the highest average yield on all observation variables. In all washing treatments (Water, NaOH and detergent) the highest average yield was dominated by washing using detergent ie leaf area index (55.35 cm2), root volume (1.19 ml), fresh weight (22.03 g) and dry weight (2.83 g).</p>


2019 ◽  
Vol 37 (4) ◽  
pp. 415-422
Author(s):  
Vlandiney Eschemback ◽  
Jackson Kawakami ◽  
Aline M Genú ◽  
Leonardo Z Anderle

ABSTRACT The objective of this work was to evaluate the effect of different planting dates on the morphological variables and yield of new potato cultivars. The treatments were three cultivars (Agata, BRS Clara and BRS F63 Camila) and three planting date (October, December and February), carried out in two crop years (2014/15 and 2015/16). Total and marketable yields, average mass of total and marketable tubers, growth period, leaf area index, number and dry weight of the tubers were evaluated. The first planting date resulted in higher yield than the third date. Cultivar BRS F63 Camila was the one with highest yield in this first planting date (47.4 t ha-1), due to greater number of tubers produced in relation to the other cultivars and to higher average tuber weight (166 g tuber-1) in relation to Agata (113 g tuber-1). In the second planting date, no difference in yield was observed among cultivars. In the third planting date, BRS Clara was the cultivar with highest yield (21.3 t ha-1), due mainly to higher average weight of tubers (105 g tuber-1) in relation to Agata (49 g tuber-1), a fact favored by the higher leaf area index and longer growth period of BRS Clara. Depending on the planting date, one should choose the cultivar that results in maximum yield potential, since it is a plant management with low cost and high yield impact. For the second planting date, any of the studied cultivars can be used.


2016 ◽  
Vol 51 (7) ◽  
pp. 818-823 ◽  
Author(s):  
Vitor Camargo do Nascimento Junior ◽  
Cássio Egidio Cavenaghi Prete ◽  
Marco Antonio Nogueira

Abstract: The objective of this work was to assess the effects of 1-methylcyclopropene (1-MCP) on traits related with biological nitrogen fixation on 'BRS 268' soybean (Glycine max) subjected to water restriction. Plants were either exposed to drought between 32 (R2) and 47 (R3) days after sowing (DAS) or kept well-watered, in combination with exposure or not to 1-MCP. On the second day under drought (34 DAS), plants from both water conditions were exposed to 1-MCP in a hermetically sealed chamber for 15 hours. Control plants, dry or well-watered, that were not exposed to 1-MCP were kept in a separate chamber. At 36 (R2) and 47 (R3) DAS, shoot and root dry weights, leaf area index, number and dry weight of nodules, total ureides in sap, and N concentration in leaves were assessed. From 47 DAS on, extra plants were well watered until physiological maturity (R8) and assessed for yield components. Water restriction increased ureides in sap and reduced N in leaves in R2; reduced the number and mass of nodules, shoot dry weight, and leaf area index in R3; and reduced the number of pods and seed mass of plants not exposed to 1-MCP. However, when plants are exposed to 1-MCP, there is an attenuation of water restriction effects.


2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Kamal Ahmed Kazem ◽  
Wajeeha Abed Hassan

"To evaluate the performance of introduced varieties of maize under different sowing dates and locations, in addition to local variety, a field experiment was carried out in two locations;. The study compared five varieties of maize introduced from America, with a local synthetic variety (Ibba 5018) and tested it in two locations at three sowing dates (1, 15 July and 1 August). The Randomized Complete Block Design RCBD was used with four replications, with spilt plot arrangements, the main plots included three sowing dates, the secondary plots included, the varieties. The traits of the days number to tassling and days to silking, plant height, ear height, number of leaves, leaves area, leaf area index, number of ears plant-1 , ear length, the number of rows ear-1, number of grains row-1 , number of grains of the plant, weight of 100 grains, total dry matter weight, the number of days to Physiological maturity, crop growth rate, individual plant yield and yield (tons h-1 ) were studied. The results showed that the values of the standard error (SE) in the two trial locations were low for the studied traits and within the acceptable limit except leaf area which was high in the first and second dates for the Baghdad location and for the three dates of the Diyala incident, as well as the values of the coefficient of variation (CV) were also low and within statistically acceptable limits and for all the traits studied in the three dates and for the two locations. Genetic variations were higher than the = environmental variation for most of the studied traits and the phenotypic coefficient of variation is close to the coefficient of genetic variation for the two locations and the three sowing dates, and this indicates that the traits are genetically governed. The value of heritability in a broad sense was higher than 90% at Baghdad location for first of July for the traits leaves area and its index, weight of the dry matter, number of days to physiological maturity (96.6, 97.4, 93.4 and 94.4%, respectively) and for 15 July for the traits. Leaf area and its index, and number of days to physiological maturity (94.7, 94.7 and 93.4%), and for I Aug for 9 traits; number of days silking, the leaf area and leaf area index, number of ears dry matter, days to maturity, rate of crop growth and yield the plant and unit area ((95.7, 99.4, 99.4, 94, 98.4, 95.5, 98.6, 93.4, 93.5%) Sequentially. As for Diyala, the traits of leaf area, leaf area index, number of days to physiological maturity, yield of plants, and area unit in the three dates were superior to the highest heritability (92.3, 92.3, 98.7, 73.6, 73.6%), (90.2, 90.2, 98.8, 82.9, 82 .9%), (90.9, 90.9, 86.4, 80.7, 80.7% respectively)."


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