scholarly journals ​Quality Characters of Tannia [Xanthosoma sagittifolium (L.). Schott] as Affected by Tillage, Planting Methods, Plant Nutrition and Application of Soil Conditioners

Author(s):  
Atul Jayapal ◽  
O.K. Swadija ◽  
A.R Resmi ◽  
B. Lovely

Background: Tannia is one of the six most important root and tuber crops grown world-wide. Tannia possess good keeping quality compared to other vegetables. The tubers are considered more nutritious than colocasia and potato. But the crop is still under-exploited compared to other tuber crops. Hence the study was undertaken to identify the effect of tillage and nutrition on quality characters of tannia. Methods: A field experiment was conducted at College of Agriculture, Vellayani, Kerala during 2014-15 to study the effect of organic nutrition on quality characters of tannia. The design used was split plot design with four replications. The treatments consisted of tillage and planting methods as main plot treatments (L1- conventional tillage followed by pit system, L2- conventional tillage followed by mound system, L3- deep tillage followed by pit system and L4- deep tillage followed by mound system). The sub plot treatments were combinations of soil conditioners (S1- control, S2- coir pith, S3- rice husk) and two nutrition systems (N1- integrated nutrient management (INM) and N2- organic nutrition). Result: Results of the experiment revealed that the quality characters of tannia was improved by deep tillage to a depth of 30 cm followed by pit system of planting, application of coir pith as soil conditioner @ 500 g plant-1 and organic nutrition (FYM @37.5 t ha-1 + wood ash @ 2 t ha-1).

2015 ◽  
Vol 13 (1) ◽  
pp. 123-134
Author(s):  
S Ray ◽  
Biman De ◽  
S Hazari

Pigeon pea [Cajanus cajan (L.) Millsp.] is the rich sources of dietary protein, carbohydrate & certain minerals but its poor yield needs to formulate a nutrient management practices for higher productivity in upland alfisols of Tripura and to combat it, an experiment was conducted during three consecutive kharif seasons at College of Agriculture, Lembucherra, Tripura comprising of two levels of Lime (150 and 200 kg ha-1) in main plot and two levels of molybdenum seed treatment (0 and 4g kg-1 of seed) in sub plot and 4 levels of recommended doses, viz., 0% of RDF ha-1, 50% of RDF ha-1, 75% of RDF ha-1 and 100% of RDF ha-1 (Recommended dose @ 20:60:40 of NPK). It was revealed that by the use of 100% RDF ha-1 with 150 kg ha-1 lime and 4g kg-1 of molybdenum seed treatment leads to higher yield and return per rupee respectively. But by the use of 100% RDF ha-1 with 200 kg ha-1 lime and 4g kg-1 of molybdenum seed treatment, return per rupee was recorded at 2.98. The investigation reflects that by the use of 75% RDF ha-1 return per rupee (3.78) was less compared to 100% RDF ha-1 but significant with saving the cost of 25% RDF ha-1 and soil health from the excessive use of fertilizer for sustaining the agricultural growth.SAARC J. Agri., 13(1): 123-134 (2015)


Author(s):  
Biman De ◽  
Subhendu Bandyopadhyay ◽  
Ashok Choudhury

Light textured acid soil with conventional culture of growing crops faces poor germination due low moisture retention with infrequently quandaries like restricted activity of salutary soil micro-organisms and ultimately poor yield. To combat these soil health problems and to ameliorate the overall productivity of northern Bengal region an experiment was done at Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, with split-split plot design having two main-plot and two subplot mulching treatments and four sub-sub plot nutrient management treatments. The observations with conservation techniques on three year studies overcome the quandaries and showed positive cognation between soil moisture and germination. Difficulty with establishment of maize and reduced yield was additionally solved with soil health benefits.


2016 ◽  
Vol 47 (3) ◽  
Author(s):  
Khrbeet & Al-Beiruty

A field experiment was conducted at the experimental farm, College of Agriculture, Abu-Ghraib, Baghdad, Iraq during the period from mid. of March 2012 to mid. of July 2014 to investigate the effects of plant growth regulators and foliar application stages on ovules abortion, seed set and its germination of two alfalfa cultivars. Layout of the experiment was R.C.B.D. arranged in split-split plot with three replications. Cultivars (local and hamedan) were assigned as a main plot and foliar application stages (vegetative growth, flower buds emergence, 50% flowering and 80% flowering) were assigned as sub-plots, while growth regulators (Alar, Ethephon, Naphthalene acetic acid(NAA) and control treatment) were assigned in the sub-sub-plots. Result showed that there were no significant differences between cultivars in all traits. Foliar application of NAA increased No. of ovules per floret (9.11) compare with other treatments, but it was not significantly different compare with Alar. In 1st and 2nd seed crop, plants sprayed with Alar at flower buds emergence stage gave highest seed set (5.17, 6.93) respectively. Percentage of ovules abortion significantly influenced by growth regulaters, folair application stages and their interaction. Since, foliar application of Alar at beginning of flower buds emergence reduce % of ovules abortion (30.89). In general, plants sprayed at vegetation growth stage increased % of seed germination. It was clear from this study that more than 40% of ovules were aborted, this may be one of the reasons for reduction of seed yield in alfalfa, therefore, we recommended to do more researches in this field in order to know the causes of ovules abortion.


2018 ◽  
Vol 6 (2) ◽  
pp. 164-168 ◽  
Author(s):  
Bibek Thapa ◽  
Keshab Raj Pande ◽  
Baburam Khanal ◽  
Santosh Marahatta

A field experiment was conducted to evaluate the effect of tillage practices, residue management and cropping system on soil properties at NMRP, Rampur, Chitwan from November 2015 to April 2016. The experiment was laid on Strip split design with combination of 12 different treatments i.e, zero tillage & conventional tillage as main plot in the strip, residue retention & residue removal as sub-plot factor and maize – wheat, maize + soybean – wheat & soybean – wheat cropping system as sub-sub plot factor. Three replications of the treatments were made. Soil sample before experiment and after harvest of wheat was taken (0-15cm). The experiment showed significant effect of zero tillage on organic carbon (2.169%) and on total soil nitrogen (0.112 %). Zero tillage with retention of residues is valuable tool for the conservation agriculture and helps in sustainability of soil however long-term research for the tillage management and residue retention should be conducted to highlight the major effects on change in properties of soil.Int. J. Appl. Sci. Biotechnol. Vol 6(2): 164-168 


Author(s):  
Rupinder Kaur Jassal ◽  
Avtar Singh ◽  
J. S. Kang ◽  
Thakar Singh

The experiment was conducted to find out the planting method and nitrogen level for enhancing the seed yield of fodder maize (Zea mays L.). The treatment comprised of three planting methods as zero tillage (ZT), conventional tillage (CT) and bed planting (BP) and four nitrogen levels (0, 100, 125 and 150 kg N/ha). Successive increase of 25kg N/ ha has significantly increased the seed and stover yield of maize with which significantly higher values of plant height, stover yield and shelling percentage was obtained.


Author(s):  
Ashwani Kumar ◽  
V. K. Pandita

A study was carried out to assess effect of inorganic fertilizers, vermicompost, Vesicular Arbuscular Mycorhizae (VAM) and biofertilizers [Rhizobium and Phosphate solubilizing bacteria (PSB)] inoculation on seed yield and quality of cowpea (Vigna unguiculata). The experiment was conducted in a split plot design for two consecutive cropping season, kharif 2012 and 2013, with two main plot treatments of inorganic fertilizers i.e. 100% and 75% recommended dose of fertilizers (RDF) and nine sub plot integrated nutrient management (INM) treatments including control (No organic fertilizer). Main plot treatments were at par but sub plot INM treatments differed significantly for plant height, seed yield, number of pods/plant, pod length, number of seeds/pod, 1000-seed weight, seed germination and vigour indices. Integrated use of inorganic fertilizers + Vermicompost 2.5 t ha-1 (4.76, 4.16 q ha″1) performed significantly better than the control (3.32, 2.79 q ha″1) for seed yield and its attributes as well as seed quality parameters during Kharif 2012 and 2013, respectively. It was at par with combined use of inorganic fertilizers + biofertilizer inoculation (Rhizobium + PSB) + VAM 10 Kg ha-1 Also, the mean cost benefit ratios (2.04, 1.90) were highest for combination of biofertilizer inoculation (Rhizobium + PSB) + VAM 10 Kg ha-1 +inorganic fertilizers 100% and 75% RDF, respectively.


Author(s):  
Ekta Joshi ◽  
D.S. Sasode ◽  
R.S. Sikarwar ◽  
Varsha Gupta ◽  
B.S. Kasana

An experiment was conducted during kharif season of 2016 and 2017 at College of Agriculture, Gwalior. To optimise plant population and fertility levels an experiment was laid out in split plot design, replicated thrice in fixed plots and the test variety of the crop groundnut (Mallika) was used. The plant geometry of 30 × 10 cm, 25 × 10 cm and 20 × 10 cm was adopted with three fertility levels as 75, 100 and 125% recommended dose of fertilizers. The yield and economics were increased by optimization of plant geometry and nutrient management under kharif groundnut. Sowing of crop at 30×10 cm spacing resulted in 7.3 and 4.3 % higher pod yield over 25×10 cm and 20×10 cm spacing, respectively and 3.0 % higher haulm yield over 25×10 cm. Similarly, application of 125% RDF resulted in 3.0 and 9.3 % higher pod yield over 100% RDF and 75% RDF, respectively but application of 100% RDF resulted in 18.6% higher haulm yield over 75% RDF and was at par with 125 % RDF application. The highest gross, net returns and B:C ratio was obtained at the spacing of 30×10 cm with 125% RDF.


2003 ◽  
Vol 83 (2) ◽  
pp. 411-415 ◽  
Author(s):  
B. D. Gossen ◽  
D. A. Derksen

Two trials were conducted from 1996 to 1999; one at Indian Head, SK, to examine the impact of tillage management on the severity of ascochyta blight of lentil, caused by Ascochyta lentis (teleomorph Didymella lentis), and a second at Saskatoon, SK, to assess the impact of crop rotation. In 1995, the blight-susceptible lentil cv. Eston was seeded across both sites and later inoculated with blight-infested lentil residue to provide a uniform level of infection. Treatments were initiated in the spring of 1996. Ascochyta blight severity was assessed on each lentil plot during the growing season. Seed quality and yield were assessed each year. A split-block design was used to minimize movement of inoculum among plots over years. In the tillage management trial at Indian Head, the main plot treatments were 0, 1, or 2 yr between lentil crops, with spring wheat as the alternate crop; the subplot treatments were zero-till vs. conventional tillage. Ascochyta blight severity was substantially higher under zero-till than under conventional tillage in the continuous lentil treatment when conditions were conducive to blight development. However, tillage management had little effect on severity when there were 2 yr between successive lentil crops. We conclude that tillage management is unlikely to have an important impact on blight severity, except in rotations with short re-cropping intervals. In the crop rotation study at Saskatoon, the main plot treatments were two rotation sequences and the subplot treatments were three crop species (canola, barley, pea) planted in 1996. Rotation 1 was seeded to cv. Eston in 1997 and barley in 1998; Rotation 2 was seeded to barley in 1997 and cv. Eston in 1998. Both rotations were seeded to cv. Eston in 1999. Also, a plot seeded continuously to cv. Eston was included at one end of each replicate block as a control. Blight was more severe in continuous lentil than in the other crop rotations, and ascochyta blight levels in 1999 were lowest where barley followed the 1996 lentil crop for both Rotation 1 and 2. However, the intervening nonhost crop had little impact on seed infection or seed yield. We conclude that at least two nonhost crops between successive lentil crops are required to substantially reduce inoculum of A. lentis following a disease outbreak. Key words: Didymella lentis, zero-till management, fusarium root rot, Lens culinaris, barley, canola, field pea


2015 ◽  
pp. 137-141
Author(s):  
Lilla Szűcs ◽  
Géza Tuba ◽  
József Zsembeli

Our measurements were done in a soil conditioner experiment started in 2014 which was set in conventional tillage system at the Karcag Research Institute where a soil conditioner was used from 2010. Effect of two different soil conditioners on compaction, moisture content of the soil and on CO2-emission was studied. Measurements were done after sowing of maize and millet, and on stubble after harvesting. It can be established that less degree of compaction was characteristic to the soil of the plots treated for several years with the soil conditioner during the vegetation period than in case of untreated plots. Higher CO2-emission values were observed on the plots treated for several years than on the control plots. This effect can’t be established in case of soil conditioners used for first time in this year.


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