Quantitative effects of cultural practices on growth and yield of forage rice having short panicles

2020 ◽  
Vol 75 (3) ◽  
pp. 326-338
Author(s):  
Kazuyuki Tanno
Keyword(s):  
Cultural Practices ◽  
Growth And Yield ◽  
Forage Rice

scholarly journals Effect of different spacing and mulching on growth and yield of Okra (Abelmoschus esculentus L.) in Chitwan, Nepal

2018 ◽  
Vol 1 (1) ◽  
pp. 168-178 ◽  
Author(s):  
Ritesh Kumar Jha ◽  
Ram Babu Neupane ◽  
Abishkar Khatiwada ◽  
Shailesh Pandit ◽  
Bhishma Raj Dahal
Keyword(s):  
Cultural Practices ◽  
Growth Parameters ◽  
Bare Soil ◽  
Leaf Length ◽  
Abelmoschus Esculentus ◽  
Growth And Yield ◽  
Row Spacing ◽  
Plastic Mulch ◽  
Panicum Repens ◽  
Plot Design

Okra (Abelmoschus esculentus L.) is one of the most important vegetable crop of Nepal. Its yield and growth parameters are affected by different cultural practices. This study was conducted at Olericulture Farm of Agriculture and Forestry University, Rampur, Chitwan, Nepal during April 29 to July 9 of 2018. The field experiment was carried out in split plot design using three replications. The treatments consisted of three intra row spacing (30, 45 and 60 cm) and four different mulching materials (Silver plastic, Panicum repens, Lantana camara and bare soil). The objective of this experiment was to assess the effects of various intra-row spacings and mulching materials on growth and yield of okra. The effect of mulching materials on okra yield was found significant. The okra yield was highest (8104 kg/ha) under silver plastic mulch followed by control (5161kg/ha), Panicum repens (3901kg/ha) and Lantana camera (3701kg/ha), respectively. Silver plastic mulch enhanced the growth parameters like canopy length, plant height, leaf number, leaf length, girth and yield of okra. The spacings provided non significant effect on okra yield, however the yield of okra was highest (7295 kg/ha) under 30×30 cm spacing followed by 45×30 cm (4660 kg/ha) and 60 cm × 30 cm spacing (3703 kg/ha), respectively. Combination of silver plastic mulch along with 30 cm × 30 cm spacing provided the highest okra yield. This study suggests that farmers of the Chitwan should grow okra at spacing of 30 cm × 30 cm and under silver plastic mulch to produce higher yield.

scholarly journals Winter Pruning Effect on Root Density, Root Distribution and Root/canopy Ratio in Vitis vinifera cv. Pinot Gris

2020 ◽  
Author(s):  
Diego Tomasi ◽  
Federica Gaiotti ◽  
Despoina Petoumenou ◽  
Lorenzo Lovat ◽  
Nicola Belfiore ◽  
...  
Keyword(s):  
Root Growth ◽  
Vitis Vinifera ◽  
Root Distribution ◽  
Cultural Practices ◽  
Vital Role ◽  
Growth And Yield ◽  
Canopy Development ◽  
Agronomic Practices ◽  
Yield And Quality ◽  
Physical And Chemical

As in any other plant, in the grapevine roots play a vital role in terms of anchorage, uptake of water and nutrients, as well as storage and production of chemicals. Their behaviour and development depend on various factors, namely rootstock genetics, soil physical and chemical features, field agronomic practices. Canopy management, involving techniques such as defoliation and pruning, could greatly influence root growth. To date, most of the studies on grapevine winter pruning have focused on the effects on yield and quality of grapes, achievable by using different pruning systems and techniques, while the knowledge of root distribution, development, and growth in relation to winter pruning is still not well understood. In this contest, the purpose of this study was to investigate the effect of winter pruning on the root system of field-grown Vitis vinifera cv. Pinot Gris grafted onto rootstock SO4. We compared two pruning treatments (pruning-P and no pruning-NP) and analysed the effect on root distribution and density, root index and on the root sugar reserves. Root data were analysed in relation to canopy growth and yield, to elucidate the effect of winter pruning on the root/yield ratio. Our data indicated that winter pruning stimulated the root growth and distribution without compromising canopy development, while no-pruning treatment produced less growth of roots but a larger canopy. Information regarding root growth and root canopy ratio is important as it gives us an understanding of the relationship between the aerial and subterranean parts of the plant, how they compete, and finally, offers us the possibility to ponder on cultural practices.

Effect of weed management practices on Sugarcane ratoon

2016 ◽  
Vol 36 (2) ◽  
Author(s):  
Mahima Begum ◽  
Bijnan Chandra Bordoloi
Keyword(s):  
Weed Management ◽  
Management Practices ◽  
Cultural Practices ◽  
Block Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Cane Yield ◽  
Research Station ◽  
Randomized Block Design ◽  
Loam Soil

A field experiment was conducted during the three consecutive seasons from 2006-08 on clay loam soil of Sugarcane Research Station, Buralikson, Assam to study the effect of different herbicides along with other cultural practices of weed management of sugarcane. The experimental field was laid out in randomized block design with three replication with the following ten treatments viz. T<sub>1</sub>: control, T<sub>2</sub>: 3 hoeings (1<sup>st</sup> , 4<sup>th</sup> and 7<sup>th</sup> week), T<sub>3</sub>: Atrazine@ 2kg a.i/ha + 2,4-D @ 1kg a.i/ ha at 45 days after ratoon initiation, T<sub>4</sub>: atrazine @ 2 kg a.i/ha + 1 hoeing at 45 days after ratoon initiation, T<sub>5</sub>: metribuzine @1 kg a.i/ha + 2,4-D @1 kg a.i/ha at 45 days after ratoon initiation, T<sub>6</sub>: metribuzine @1 kg a.i/ha + 1 hoeing at 45 days after ratoon initiation , T<sub>7</sub>: glycel-41@ 0.4 kg a.i/ha at 3<sup>rd</sup> week stage, T<sub>8</sub>: glycel-41@ 0.4 kg a.i/ha at 3<sup>rd</sup> week + 1 hoeing at 60 days after ratoon initiation, T<sub>9</sub>: trash mulching in alternate rows + hoeing during 1<sup>st</sup> and 6<sup>th</sup> week, T<sub>10</sub>: trash mulching in all rows. Result revealed that all the weed management practices had a significant effect on growth and yield of sugarcane over control. Out of all treatments, pre-emergence spraying of metribuzine @1 kg a.i/ha followed by spraying of 2, 4-D @1 kg a.i/ha at 45 days after ratoon initiation recorded lesser number of weeds and weed dry weight with higher weed control efficiency (80.38%). The same treatment also recorded the higher cane yield (79.6 t/ha) which is followed by pre-emergence spraying of metribuzine @ 1 kg a.i/ha with 1 hoeing at 45 days after ratoon initiation.

An evaluation of a no-tillage, unfertilised, direct-sown, wheat - rice cropping system in Korea

2001 ◽  
Vol 41 (1) ◽  
pp. 53 ◽  
Author(s):  
Y. S. Cho ◽  
B. Z. Lee ◽  
Z. R. Choe ◽  
S. E. Ockerby
Keyword(s):  
Organic Matter ◽  
Time Course ◽  
Crop Yields ◽  
Cultural Practices ◽  
Organic Matter Content ◽  
Cropping System ◽  
Matter Content ◽  
Growth And Yield ◽  
No Tillage ◽  
Rice Growth

A no-tillage, direct-sown, unfertilised, wheat–rice relaying cropping system has major advantages over a conventional transplanted-rice system. For example, when rice is sown simultaneously with the wheat harvest, there are savings in labor and costs as a result of eliminating the tillage required to prepare the seedbed and for transplanting. A field experiment was conducted between 1996 and 1998 at Hadong, Korea. The experiment compared the soil microbial-N status, the soil physical and chemical characteristics, and rice growth and yield in a long-term conventional rice system with those in a no-tillage, unfertilised, direct-sown, wheat–rice, relay cropping system. The wheat–rice system was imposed for 2, 4 and 7 years to identify the time course of responses in the soil and crop. Agricultural chemicals including fertilisers were not applied in the wheat–rice cropping system. Rice crop yields after 2, 4 and 7 years of a direct-sown, wheat–rice cropping system were similar to those in the conventional rice system. Rice yields were high, ranging from 4.7 to 6.9 t/ha. Since 110 kg N/ha was applied to the conventional rice system, a large amount of N was mineralised during the wheat–rice system. The pattern of rice growth and yield formation, however, differed between the 2 systems. Rice in the wheat–rice system generally had more panicles, fewer spikelets per panicle and heavier grains. These responses reflected temporal changes in the N content and greenness of the rice leaf and were related to soluble N levels in the soil. Generally the soil was fertile with a high initial organic matter content. Organic matter increased by 30% during the 7 years of wheat–rice cropping. Other soil physical measures, bulk density and permeability to air and water, indicated that soil structure improved in response to wheat–rice cropping. Problems of pathogens and perennial weeds associated with new cultural practices in the wheat–rice cropping were minor; however, a higher rate of seeding was necessary to achieve satisfactory seedling establishment. Benefits to weed control and soil moisture conditions during crop establishment were derived from the increased level of crop mulch. The wheat–rice cropping system was found to be high yielding and sustainable over the 7-year period of experimentation.

scholarly journals Evaluation of Turmeric (Curcuma longa L) Genotypes for Growth and Yield Attributes in Plains of Eastern Nepal

2021 ◽  
pp. 57-64
Author(s):  
Tika Ram Chapagain ◽  
Amit Prasad Timilsina ◽  
Sabita Sharma ◽  
Kumar Mani Dahal ◽  
Samid Ahamad
Keyword(s):  
Significant Positive Correlation ◽  
Cultural Practices ◽  
Agricultural Research ◽  
Curcuma Longa ◽  
Block Design ◽  
Pooled Analysis ◽  
Growth And Yield ◽  
Yield Attributes ◽  
Randomized Complete Block Design ◽  
Plot Area

An experiment was conducted in order to identify the productive genotype of turmeric for the plains of Nepal. In 2017 and 2018, seven promising turmeric genotypes (CI 0207, CI 0205, CI 9102, CI 1312, CI 0503, CI 0507, and CI 0201) were compared with KKH-1 in a Randomized Complete Block Design with four replications at the Directorate of Agricultural Research, Tarahara, Nepal. The plants were 30 cm x 30 cm apart, with 40 plants per 3.6 m2 plot area. Cultural practices were followed in accordance with the recommendations. Analysis of variance, correlation, cluster, and GGEbiplot analysis were performed on the observed data. From the pooled analysis of two years of data, the results showed significant differences in plant height and fresh rhizome yield among genotypes. The rhizome yield of KKH-1 was found significantly higher (19.36 t ha-1) than CI 0205 and CI 9102 and at par with other genotypes. Weight of mother rhizome had significant positive correlation (r = 0.602**) with yield of fresh rhizome. Though KKH-1 yielded the highest fresh rhizome, the cluster and GGEbiplot analysis identified CI0207 as one of the potential turmeric clones next to KKH-1.

scholarly journals Suppression of Phytophthora Root Rot in Red Raspberries with Cultural Practices and Soil Amendments

HortScience ◽  
2005 ◽  
Vol 40 (6) ◽  
pp. 1790-1795 ◽  
Author(s):  
Kevin Maloney ◽  
Marvin Pritts ◽  
Wayne Wilcox ◽  
Mary Jo Kelly
Keyword(s):  
Root Rot ◽  
Cultural Practices ◽  
Soil Amendments ◽  
Severe Disease ◽  
Phosphorous Acid ◽  
Growth And Yield ◽  
Phytophthora Root Rot ◽  
Disease Symptoms ◽  
Phytophthora Fragariae ◽  
Infested Site

Various soil amendments and cultural practices were examined in both a phytophthora-infested (Phytophthora fragariae var. rubi) (+PFR) and uninfested field (–PFR) planted to `Heritage' red raspberries. Although plants in the +PFR field did not exhibit typical disease symptoms due to unseasonably dry weather, their growth was less than those in the –PFR field. After 2 years, plants in the +PFR site had the highest yields in plots treated with phosphorous acid or amended with gypsum, whereas compost-amended plots had the lowest yields in both +PFR and –PFR sites. A second field study confirmed the positive effect of gypsum on growth and yield of raspberries in an infested site. In a third study, `Titan' raspberries grown under greenhouse conditions in pots containing unamended soil from the infested site, then flooded, exhibited severe disease symptoms; however, pasteurization of the soil, treatment with phosphorous acid and metalaxyl fungicide, or gypsum amendment mostly prevented symptoms from developing. These three studies suggest that a preplant soil amendment containing certain readily available forms of calcium, such as found in gypsum, can help suppress phytophthora root rot and increase survival, growth and yield of raspberries in sites where the pathogen is present.

scholarly journals PLASTIC MULCHED BED WIDTH EFFECTS ON PEPPER AND CANTALOUPE YEILD

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 507C-507
Author(s):  
William Terry Kelley ◽  
David B. Langston
Keyword(s):  
Plant Growth ◽  
Methyl Bromide ◽  
Cultural Practices ◽  
Dry Weight ◽  
Growth And Yield ◽  
Cold Weather ◽  
Plastic Mulch ◽  
Future Production ◽  
Main Plot ◽  
Phase Out

The phase out of methyl bromide has precipitated a need to reduce usage of the all purpose fumigant. Reduction in methyl bromide use can extend the life of existing stocks and make it more likely to continue critical use exemption for future production. Traditional widths for plastic mulch covered beds in Georgia ranges from 32 to 36 inches. By reducing bed top widths, it could be possible to reduce the amount of methyl bromide applied by as much as 60%. The objectives of this work were to evaluate the effects of narrower bed tops and lower rates of methyl bromide on pepper and cantaloupe growth and yield. Bed top widths of 36, 30, and 24 inches were each tested with broadcast rates of 400 and 300 lb/acre of both 67:33 and 50:50 methyl bromide-chloropicrin at Tifton, GA in the fall of 2005. Bed widths were the main plot and methyl bromide rates the sub plot. Plots were 20 feet long with two rows of pepper planted per bed with 12 inches between plants and one row of cantaloupe planted per bed with two feet between plants. All beds were on 6-ft centers and fertilizer rates were constant across plots within a crop. There were four replications. Otherwise normal cultural practices were employed. Crops were harvested at maturity and data collected on yield and plant growth. Pepper yields were depressed by early cold weather. The 24-inch bed tops produced significantly lower yields of extra large, large and total fruit, but had greater top dry weight and root fresh weight than the 36-inch beds. There were no differences found among methyl bromide rates for cantaloupe or for pepper except extra large fruit were greater at the highest rate compared to the lowest. There were no differences among bed top widths for cantaloupe yield or plant growth.

Cultural practices for enhanced growth of young peach trees

1989 ◽  
Vol 4 (1) ◽  
pp. 8-11 ◽  
Author(s):  
D. M. Glenn ◽  
W. V. Welker
Keyword(s):  
Tree Growth ◽  
Soil Structure ◽  
Cultural Practices ◽  
Soil Management ◽  
Growth And Yield ◽  
Soil Parameters ◽  
Soil Environment ◽  
Orchard Soil ◽  
Complete Fertilizer ◽  
Peach Trees

AbstractA review of orchard soil management effects on tree growth and soil parameters is presented. It shows the gap between present common practices and results achievable in other systems. An alternative soil management system for newly planted peach trees, termed “killed-sod”, is described. This system has improved soil structure and rainfall infiltration and greatly increased early tree growth and yield. A fertilization study has demonstrated that the addition of a complete fertilizer in four different soil management systems could not account for the increased growth resulting from the improved soil environment in the killed-sod system.

Cultural-practice packages and trash management effects on sugarcane ratoons under sub-tropical climatic conditions of India

2011 ◽  
Vol 150 (2) ◽  
pp. 237-247 ◽  
Author(s):  
S. N. SINGH ◽  
A. K. SINGH ◽  
J. P. S. MALIK ◽  
R. KUMAR ◽  
SUNDERPAL ◽  
...  
Keyword(s):  
Bulk Density ◽  
Cultural Practices ◽  
Growth Yield ◽  
Dry Weight ◽  
Cultural Practice ◽  
Climatic Conditions ◽  
Growth And Yield ◽  
Control Treatment ◽  
Cane Yield ◽  
Area Index

SUMMARYSugarcane (Saccharum spp.) ratoon crops comprise more than 0·50 of India's sugarcane acreage and reduce the cost of cultivation by 25–30%. However, ratooning is seldom practised beyond 1–2 ratoons because the yield declines in successive ratoons due to compacted soils with decreased fertility restricting root development and plant growth. Therefore, a field experiment on sugarcane was conducted from 1998 to 2003 at the Sugarcane Research Institute, Muzzaffarnagar (Uttar Pradesh), India to evaluate the effects of combinations of trash management with key cultural practices (stubble shaving, ridge dismantling, sub-soiling along stubble rows, trash mulching and earthing-up) on growth and yield of sugarcane up to the third ratoon. Two treatment combinations (ridge dismantling+stubble shaving+sub-soiling along stubble rows+trash mulching at 8 t/ha (T5) and all these plus earthing-up in June (T6)) showed similar growth, yield and economics of ratoon crops. Both these treatments produced significantly higher shoot populations, leaf area index (LAI), dry matter (DM) accumulation, net assimilation rate (NAR), number of millable canes, ratoon cane yield and sugar, soil organic carbon (SOC) content at harvest and higher net returns besides lowering weed density, weed dry weight and bulk density of soil compared with other treatments. T6 produced the highest cane yield of 77, 72 and 65 tonnes (t)/ha, which was 23, 27 and 29% more than trash burning alone (T1) in first, second and third ratoon crops, respectively. Although T6 had the same yield as T5, it led to significantly lower soil bulk density at 0–150 mm depth, higher SOC contents and greater benefit: cost ratios in the first, second and third ratoon crops, respectively compared with trash burning only. Adoption of the crop management components, separately or in combination, improved on trash burning only (the control treatment). Trash mulching sustained the improved yield and economic returns of sugarcane ratoon crops.

scholarly journals Effects of Earthing up and Pruning Systems on Growth and Yield of Tomato (Solanum lycopersicon.)

2020 ◽  
pp. 18-30
Author(s):  
I. K. Keter ◽  
G. Oloo- Abucheli ◽  
M. Muraya
Keyword(s):  
Plant Height ◽  
Cultural Practices ◽  
Block Design ◽  
Growth And Yield ◽  
Solanum Lycopersicon ◽  
Two Factors ◽  
Health Related ◽  
Main Plot ◽  
Tomato Growth ◽  
Average Plant

Tomato (Solanum lycopersicon) is an important crop cultivated and consumed worldwide. It provides wide variety of nutrients with many health-related benefits like, protection against cancer, maintains blood pressure and reduces blood glucose level in people with diabetes. Despite the importance of tomato, its growth and yield is limited by choice of cultural practices mainly earthing up and pruning system. There is also limited knowledge on the effect of integrating pruning and earthing up on tomato growth and yield. This study investigated the effect of integration of pruning and earthing up on the growth and yield of tomato. A split-plot experimental design, arranged in a Randomized Complete Block Design, with three replications was used. The study investigated two factors i.e. pruning system in the main plot (single stem, double stem, and triple stem) and earthing up in sub-plots. (0 cm, 10 cm, 20 cm, and 30 cm. The findings of the study revealed that earthing up and pruning system had a significant (p ˂ .05) effect on plant height and stem girth diameter at 45, 52, and 59 days after transplanting. The single stem pruning system and earthing up to 30 cm gave the tallest plant height with an average plant height of 69.80 cm in cultivation 1 and 71.50 cm in cultivation 2. Single stem pruning system and earthing up to 30 cm gave the largest stem girth diameter with mean stem girth diameter of 2.16 cm in cultivation 1 and 2.25 cm in cultivation 2. Triple stem pruning system, earthing up to 30 cm recorded the highest number of marketable fruits with 64500 fruits/hectare in cultivation 1 and 64333 fruits/hectare in cultivation 2. To improve tomato growth and development which consequently improves marketable yields, farmers are encouraged to consider triple stem pruning system with earthing up to level 30 cm.

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