scholarly journals Evaluation of micronutrient status of sandy clay loam as influenced by sulphur fertilization on blackgram

2017 ◽  
Vol 9 (2) ◽  
pp. 669-673
Author(s):  
B. Gokila ◽  
P. Saravanapandian ◽  
S. Sivagnanam

Secondary nutrient deficiency especially sulphur (S) in blackgram has imparted poor grain setting percentage and yield as well. Interest on S availability in soils has increased due to acute shortage production of quality blackgram. Therefore, an attempt was made to assess the three SO4-2- S sources (Gypsum, Ammonium sulphate and Potassium sulphate) and two S levels (10 and 20 kg S ha-1) under irrigated condition. This experimental trial was replicated three times along with randomized block design at farmer field of Thenamallur village, T. Kallikudi block, Madurai district. S treatments were also evaluated by two methods of fertilizer amendment such as, soil application (as basal dose) and foliar spray (0.5 % K2SO4) on 30th and 45th days after sowing and its combinations. Soil analysis is good method to assess the S nutritional status of soil under tropical areas. The results revealed that the S and micronutrient content was low in single soil application or foliar spray and irrespective of source and level. Foliar spray treatment plants recovered limited S concentration. We could found that the better higher S concentration among the combination treatments. Soil application of K2SO4 @ 20 kg ha-1 + foliar spray was increased the soil available S and DTPA - extractable Micronutrient (Zn, Fe, Mn and Cu) status. Our study explains that the treatment combinations had synergistic effect and it may be concluded that the combinations (soil + foliar spray) are increased soil available S and micronutrient status. Further, future studies are required to confirm the results of S fertilizers in alkaline soil.

2021 ◽  
Vol 12 (3) ◽  
pp. 158-164
Author(s):  
A. V. Ramanjaneyulu ◽  
◽  
A. Madhavi ◽  
M. V. Nagesh Kumar ◽  
T. L. Neelima ◽  
...  

A field investigation was carried out to study the influence of zinc and iron micronutrients on the performance of rainfed castor, in Professor Jayashankar Telangana State Agricultural University, Telangana state, India for three consecutive years during kharif 2011-12, 2012-13 and 2013-14. There were nine treatments viz., Control (no micronutrient application); soil application of FeSO4 @ 15 kg ha-1; soil application of FeSO4 @ 25 kg ha-1; soil application of ZnSO4 @ 15 kg ha-1; soil application of ZnSO4 @ 25 kg ha-1; foliar application of 0.5% FeSO4 at 50 DAS; foliar application of 0.5% FeSO4 at 50 and 90 DAS; foliar application of 0.5% ZnSO4 at 50 DAS; foliar application of 0.5% ZnSO4 at 50 and 90 DAS and tested in randomized block design with three replications. The foliar application of ZnSO4 (0.5%) twice at 50 and 90 DAS resulted in significantly higher seed yield (1698 kg ha-1), higher gross returns (Rs. 54344 ha-1), net returns (Rs. 33501 ha-1) and B:C ratio (2.60) over rest of the treatments. The seed yield improvement was to the tune of 54% over no micronutrient application. The uptake of major and micronutrients was greater when the crop received two sprays of ZnSO4 as compared to one spray of ZnSO4, two sprays of FeSO4 and soil application of either of the micronutrients. The castor bean crop responded to Zn better than Fe by producing 10.2% to 12.2% higher seed yield. Foliar spray was found superior to soil application in case of both the micronutrients.


Author(s):  
Nihad H. Mutlag ◽  
Ameer S. A. Al-Haddad

A field study was conducted to evaluate the efficiency of four microbial insecticides viz. Beauveria bassiana; HaNPV (Helicoverpa armigera Nuclear Polyhedrosis virus); (Bacillus thuringiensisvar.kurstaki 2 gm/L); HaNPV+Bt; neem oil; neem cake and D.D.V.P EC 76% @0.05% at Research Farm SHIATS,Allahabad during rabi season of 2011-2012. The experiment was laid out in randomized block design with seven treatment and replicated thrice. The observation larval populations of H. armigera were recorded one day before treatment was recorded at 3,7, and 10 days after treatments. The larva population of H. armigera appeared in the third week of February (8 the Standard week) and reached its peak of 14.65 larvae in first week of April and decline rapidly with maturation of crop. There was only one peak in the larval population observation in the 1st week. Bacillus thuringiensis was the most effective chemical by D.D.V.P.76%@0.05% . Among the microbial insecticides. HaNPV ,was the most effective followed by HaNPV+Bt and neem cake . The combination treatments were less effective than the individual treatment neem oil and B. bassiana were the least effective treatment in reducing the larval population of Heliverpa armigera.


AGRICA ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 124-133
Author(s):  
I Ketut Arsa Wijaya

This study was conducted in Balai Benih Induk (BBI) Luwus, Baturiti District, Tabanan Regency, with the high of place 506m above sea level occurring in March to May 2014. This research used randomized block design arranged per factor, namely population of plants (P) including three steps: P1=80.000 plants per hectare, P2= 100.00 plants per hectare, P3= 120.000 per hectare; and mulch (M) that include: M0= without mulch and without cleaning, M1= without mulch with clean weeding, M2= rice plants straw mulch (5 ton per hectare) and M3= black silver plastic mulch. Eventually, there were 12 combination treatments, each of which was repeated 3 times to obtain 36 land slots. The research indicates that there was no real interaction between the treatment of plant population and mulch usage in all variables observed. The 100.000 plant population per hectare can produce the weight of dry and fresh oven corn kernel without highest cornhusk that was to say 4.79 tons and 0.53 tons or 11.66 % and 20.45% higher compared to 120.000 plant population per hectare. The use of black silver plastic and rice plants straw mulch can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare each of which is 4.69 tons, 4.57 tons, and 0.54 tons, 0.47 tons or 26.76%, 38.46 %, and 23.51 %, 20.51 % higher than without mulch and without clean weeding. Clean weeding treatment can produce the weight of fresh and dry oven corn kernel without cornhusk per hectare with its weight of 4.63 tons and 0.51 tons or 25.35 % and 35.90 % higher than without mulch and cleaning. Clean weeding treatment was not obviously different from mulch treatment. The identification of weed types were 19 kinds of weeds and Cyperus rotundus L. Weeds. They have the highest density and each absolute frequent of 1249.333 stems m-2 and 1.00.


Revista CERES ◽  
2014 ◽  
Vol 61 (1) ◽  
pp. 62-69
Author(s):  
Gessimar Nunes Camelo ◽  
Geraldo Antonio de Andrade Araújo ◽  
Renildes Lucio Ferreira Fontes ◽  
Luiz Antonio dos Santos Dias ◽  
José Eustáquio de Souza Carneiro ◽  
...  

The effect of molybdenum (Mo) on common bean grown in desiccated corn stover in a no-tillage system was evaluated under two application modes: Mo mixed with the desiccant glyphosate and Mo direct spray to the bean leaves. The treatments (four replicates) were assigned to a completely randomized block design in a split-plot arrangement with the application of Mo (0, 100, 200, 400 and 800 g ha-1) mixed with glyphosate in the main plots and Mo foliar spray (0 and 100 g ha-1) in the sub-plots. The field experiments were carried out in 2009 and 2010 in the municipality of Coimbra, Minas Gerais State, with the common bean cultivar Ouro Vermelho. Mo mixed with glyphosate had neither an effect on common bean yield nor on the Mo and N contents in leaves, however it increased the Mo and N contents in seeds. Application of Mo via foliar spray increased Mo content in leaves and Mo and N contents in seeds. The reapplication of molybdenum with glyphosate for desiccation in subsequent crops caused a cumulative effect of Mo content in bean seeds.


2021 ◽  
Vol 49 (2) ◽  
pp. 12321
Author(s):  
Anastasia AKOUMIANAKI-IOANNIDOU ◽  
Alexandra SALTA ◽  
Pantelis E. BAROUCHAS ◽  
Nicholas K. MOUSTAKAS

The effect of cadmium (Cd) on growth and Cd accumulation in shoots and roots St John’s wort (Hypericum empetrifolium) was studied over three months in a greenhouse. Plants were cultivated in pots containing a uniform mixture of either acid or alkaline substrate consisting of peat and perlite (1:1 v/v). The pots were arranged in a completely randomized block design within two groups (acid substrate and alkaline substrate) with four Cd treatments (0-control, 1, 2, and 5 mg Cd L-1) and six replicates per treatment. Cadmium was applied as CdSO4*8/3H2O. The total amount of Cd applied per pot was 260 ml, corresponding to 0.26, 0.52, and 1.3 mg Cd per pot for doses 1, 2, and 5 mg L-1, respectively. No visual symptoms of toxicity or nutrient deficiency, as well as no differences in plant height were observed in response to Cd application, irrespective of the growth stage or substrate. There were also no differences in height development rate between the plants grown in an acidic or alkaline substrate. Cd accumulation in shoots and roots increased with increasing concentrations of applied Cd and was higher in the acidic substrate. Thus, St John’s wort plant is a Cd accumulator, especially in an acidic environment, and this in combination with its high tolerance to Cd, makes it a suitable species to remove Cd from cadmium-contaminated sites. However, for its use in the preparation of medical products, St John’s wort must be grown in a Cd-free soil so as not to pose a risk to human health. Cd extraction by (DTPA-TEA) can be employed to predict Cd accumulation in this plant.


2020 ◽  
Vol 19 (1) ◽  
pp. 33
Author(s):  
ROSIHAN ROSMAN ◽  
OCTIVIA TRISILAWATI ◽  
SETIAWAN SETIAWAN

<p>ABSTRAK<br />Dosis pupuk N, P, dan K optimal untuk akar wangi belum diketahui<br />dan penggunaannya  masih beragam. Penelitian bertujuan untuk<br />mendapatkan komposisi dosis pupuk N, P, dan K optimal yang dapat<br />meningkatkan produktivitas akar wangi. Penelitian dilakukan di Desa<br />Sukakarya, Garut dari bulan Januari 2009 sampai dengan Desember 2010<br />menggunakan rancangan Acak Kelompok, dengan 3 ulangan. Perlakuan<br />meliputi 9 kombinasi pupuk N, P, dan K: (1). Kontrol; (2) 100 kg SP-36 +<br />75 kg KCl; (3) 100 kg ZA + 75 kg KCl; (4) 100 kg ZA + 50 kg SP-36 + 75<br />kg KCl; (5) 100 kg ZA + 100 kg SP-36 + 75 kg KCl; (6) 100 kg ZA + 100<br />kg SP-36 + 150 kg KCl; (7) 100 kg ZA + 100 kg SP-36; (8) 200 kg ZA +<br />100 kg SP-36 + 75 kg KCl; (9) 200 kg ZA + 100 kg SP-36 + 150 kg KCl.<br />Panen dilakukan pada 12, 14, dan 16 bulan setelah tanam (BST). Hasil<br />menunjukkan bahwa pemupukan dosis 100 kg ZA + 75 kg KCl<br />menghasilkan minyak 52,59 dan 67,78 kg/ha (12 dan 14 BST) dan 200 kg<br />ZA + 100 kg SP-36 + 75 kg KCl menghasilkan 67,76 kg /ha (16 BST),<br />dengan kadar vetiverol lebih dari 50%.<br />Kata kunci: Vetiveria zizanioides, pemupukan, vetiverol, produksi, mutu<br />minyak</p><p>ABSTRACT<br />The optimum dosage of N, P, and K fertilizer has not been known<br />yet and it usage was still varied. The research aim is to obtain an optimal<br />composition of N, P, and K fertilizer that could increase productivity of<br />vetiver crop. The researsch has been conducted in Sukakarya Village,<br />Garut, from January 2009 to December 2010. The research was arranged<br />in randomized block design, with 3 replications and N, P, and K fertilizer<br />combination treatments i.e.: (1) Control; (2) 100 kg SP-36 + 75 kg KCl;<br />(3) 100 kg ZA + 75 kg KCl; (4) 100 kg ZA + 50 kg SP-36 + 75 kg KCl;<br />(5) 100 kg ZA + 100 kg SP-36 + 75 kg KCl; (6) 100 kg ZA + 100 kg SP-<br />36 + 150 kg KCl; (7) 100 kg ZA + 100 kg SP-36; (8) 200 kg ZA + 100 kg<br />SP-36 + 75 kg KCl; (9) 200 kg ZA + 100 kg SP-36 + 150 kg KCl.<br />Harvesting was done at 12, 14 and 16 months after planting (MAP). The<br />result showed that the dose of 100 kg ZA + 75 kg KCl produced vetiver oil<br />52,59 and 67,78 kg/ha (12 and 14 MAP). Meanwhile the dose of 200 kg<br />ZA + 100 kg SP-36 + 75 kg KCl produced 67,76 kg/ha (16 MAP),<br />respectively. vetiverol content were more than 50%.<br />Key words: Vetiveria zizanioides, fertilizing, vetiverol, production, oil<br />quality</p>


2020 ◽  
Vol 8 (2) ◽  
pp. 1
Author(s):  
Renato Anastácio Guazina ◽  
Rosiane Araujo Rodrigues Nass ◽  
Gustavo De Faria Theodoro ◽  
Ricardo Carneiro Brumatti ◽  
Sofia Michele Muchalak ◽  
...  

This study was carried out to determine whether the yield of soybean cultivars and the severity of Asian Soybean Rust (ASR) are influenced by foliar spray of silicon exclusively or along with a fungicide mixture, as well as the economic viability of their use for a sustainable crop. The experiment was performed in randomized-block design, five replicates, two soybean cultivars and (2×6) + 2 factorial arrangements: S1 (AlSi at R1 + R4); S2 (AlSi at R1 + R5.1); S3 (AlSi at R1 + FM at R4); S4 (FM at R1 + AlSi at R4); S5 (AlSi at R1 + FM at R5.1); S6 (FM at R1 + AlSi at R5.1); NC and PC (negative and positive control). The economic evaluation and sensitivity analysis were undertaken for Anta 82 RR. There was no interaction effect between the factors, and cultivar CD 2737 had a higher yield. ASR was less severe in CD 2737, and S3 and S5 provided the lowest disease severity. Exclusive spray of aluminum silicate was able to reduce the number of lesions with uredinia, open uredinia and uredinia per lesion. S3 increased grain yield, resulting in higher revenues and a 66.1% gross margin. Sensitivity analysis revealed that S3 was profitable in all scenarios.


Author(s):  
D. J. Modi ◽  
L. M. Patil ◽  
H. M. Vasava ◽  
M. M. Patel

The field demonstrations were carried out during 2016-17 in Rabi season to know effect of zinc and boron on yield of brinjal at total 10 farmers from Bharuch district. The production of brinjal is quite low in some part of the district due poor soil fertility status and imbalance fertilizer application by farmer. There was complete absence of micronutrients application to the crop. The initial soil analysis data showed deficiency of zinc and boron in experimental soil. Thus, to compare effect and method of use of zinc and boron; soil application and foliar spray were made along with improved practices against farmer practices. The highest plant height, average fruit weight, number of fruits per plant and fruit yield of brinjal was recorded with the soil application of zinc and boron which was superior over the foliar spray and farmer’s practices. The gross return, net return and benefit cost ratio recorded was also maximum in improved practices consisting soil application of zinc and boron as compared farmer’s practices.


2017 ◽  
Vol 2 (02) ◽  
pp. 206-209
Author(s):  
Y. A. Bhosale ◽  
D. P. Pacharne

A field experiment was conducted during kharif season of 2015 on silty clay loam soil at MPKV, Rahuri (MS), to study the varying nutrient management levels on productivity and economics of different soybean varieties. The experiment was laid out in factorial randomized block design with 15 combinations of three varieties (KDS-344, JS-9305 and KS-103) and five nutrient management levels ( GRDF, 75% GRDF + 0.5% foliar spray of grade IInd at 30 and 45 DAS, 100% GRDF + 0.5% foliar spray of grade IInd at 30 and 45 DAS, N4: 125% GRDF + 0.5% foliar spray of grade IInd at 30 and 45 DAS and 50:75:30 N, P2O5, K2O kg ha-1 + 5 tons FYM ha-1. The variety KDS-344 and application of nutrient management dose 125% GRDF + 0.5 Grade IInd foliar spray at 30 and 45 DAS recorded significantly the highest growth and yield attributes viz., plant height (cm), number of branches, number root of nodules, number of pod plant-1 and weight of seeds plant-1 (g). The variety KDS-344 recorded highest grain and stover (3.66 and 4.64 t /ha) yield and highest economic indices like cost of cultivation (40,623), net monetary returns (87355) and net returns per rupee invested (3.17). The grain yield (4.34 t/ha) and stover yield (4.53 t/ha) of soybean was significantly higher by application of fertilizer dose of 125% GRDF + 0.5% Grade IInd foliar spray at 30 and 45 DAS than rest of treatments, but it was also at par with 75% GRDF + 0.5 Grade IInd foliar spray at 30 and 45 DAS and 100% GRDF + 0.5% Grade IInd foliar spray at 30 and 45 DAS. Similarly, variety KDS-344 and application of nutrient levels of 75 % GRDF + 0.5 % Grade IInd foliar spray at 30 and 45 DAS recorded the highest net returns (82756) and net returns per rupee invested (3.24) in soybean due to reduce in cost of cultivation (36931) and nutrient losses.


2020 ◽  
Author(s):  
Yuan Gao ◽  
Ying Yang ◽  
Shilun Gao ◽  
Liming Jia ◽  
Shiqi Liu ◽  
...  

Abstract Background: Nutrient deficiency leads to a high fruit abscission rate in Sapindus mukorossi Gaertn. (Soapberry), which is one of the most widely cultivated biodiesel feedstock forests in China. Exogenous sucrose can provide a solution to nutrient deficiency and fruit abscission, which was applied to whole trees at two stages, 20 days before blooming (DBB stage) and fruit abscission (DBFA stage). Six sucrose concentrations, 0%, 1%, 1.5%, 3%, 5% and 7%, were sprayed three times at a completely randomized block design with 5 replications and 6 treatments. 13CO2 labelling experiments were carried out after the 3 sprayings. Results: (1) In the DBB stage, the 3% treatment significantly increased the inflorescence fructose and glucose contents 1-1.2 times, also resulted in the highest fruit GA3, leaf IAA, fruit IAA and fruit ZT contents, while it decreased the inflorescence ABA from 16 μg/g to 4 μg/g. (2) The 1.5% and 3% treatments significantly increased the carbohydrate content and decreased fruit ABA content to 30%-50% of the control level in the DBFA stage. (3) High-concentration sugar treatment (over 3%) increased the nitrogen, phosphorus, and potassium contents, which decreased the calcium and magnesium contents. (4) The 13C-dispatching ability of the inflorescence was 3 times greater than leaves under high-concentration sugar treatment in the DBB stage. Supplying 1.5% sucrose nearly doubled the allocation capacity in the DBFA stage. (5) The source-sink nutrient migration pathway showed that leaf and fruit sugars were directly correlated via phosphorus. Fruit fructose and glucose contents affected the leaf mineral element contents. Conclusions: It can conclude that exogenous application of 3% sucrose in the DBB stage and 1.5% sucrose in the DBFA stage can increase the sink nutrition allocation capacity, and phosphorus is the main mineral element correlated with leaf and fruit sugars.


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