scholarly journals Potential of transplanting bare-root seedlings comparing with direct seeding in some Egyptian cotton cultivars

2021 ◽  
Vol 26 (4) ◽  
pp. 275-290
Author(s):  
Houda Rabeh
Keyword(s):  
Direct Seeding ◽  
Bare Root ◽  
Egyptian Cotton

Direct Seeding of Bottomland Oaks in Oklahoma

1991 ◽  
Vol 15 (1) ◽  
pp. 17-22 ◽  
Author(s):  
R. F. Wittwer
Keyword(s):  
Broad Spectrum ◽  
Growing Season ◽  
Height Growth ◽  
Direct Seeding ◽  
Fertilizer Treatment ◽  
Mississippi Valley ◽  
Direct Seeded ◽  
Initial Spacing ◽  
Bare Root ◽  
Water Willow

Abstract Competition control with a broad spectrum herbicide prior to planting and placement of a fertilizer tablet near the seed spot failed to improve establishment or height growth of direct seeded water, willow, or Shumard oaks on a bottomland site in southeastern Oklahoma. The percentage of seed spots stocked with a living seedling exceeded 35%, or 1460 seedlings/ha (590/ac) given the initial spacing of 1 x 2.4 m (3.2 x 8 ft). This success is generally comparable to results obtained in more favorable environments in the Mississippi Valley. The fertilizer treatment, applied as a single fertilizer tablet placed near the seeded spots at the time of seeding, reduced stocking by 12-15% during an especially stressful growing season. Bare-root, 1-0, water/willow oak seedlings planted for comparision exhibited 80-90% survival. South. J. Appl. For. 15(1):17-22.

A new method for the purification of Egyptian cotton waste fibres

1977 ◽  
Vol 27 (2) ◽  
pp. 405-408
Author(s):  
M. Amine Abou-State ◽  
Boshra M. Awad ◽  
Fouad F. Abd El-Megeid
Keyword(s):  
New Method ◽  
Cotton Waste ◽  
Egyptian Cotton

Dynamics of CO2 emission from chernozems under agricultural use

2017 ◽  
Vol 4 (3) ◽  
pp. 43-49
Author(s):  
M. Miroshnychenko ◽  
O. Siabruk
Keyword(s):  
Carbon Dioxide ◽  
Agricultural Practices ◽  
Growing Season ◽  
Warm Period ◽  
Direct Seeding ◽  
Soil Tillage ◽  
Plant Residues ◽  
Hydrothermal Conditions ◽  
Organic Mineral ◽  
Mineral System

Aim. The comparison of the effect of hydrothermal conditions and various agricultural practices on the emission of CO 2 from chernozems in the Left-Bank Forest-Steppe of Ukraine. Methods. The dynamics of the intensity of carbon dioxide emissions from chernozem calcic (typical chernozem – in Ukrainian classifi cation) was studied during the growing season of 2011–2012. The observations were based on two fi eld experiments with various methods of soil till- age (6–7 years from the beginning of the experiment) and fertilization systems (21–22 years from the beginning of the experiment). Particularly, plowing at 20–22 cm, disking at 10–12 cm, cultivation at 6–8 cm and direct seeding using Great Plains drill were studied among the soil tillage methods. Mineral system (N 45 P 50 K 45 ), organic system (manure 8 t/ha) and combined organic-mineral system (manure 8 t/ha + N 45 P 50 K 45 ) were studied among fertilization systems. The intensity of CO 2 fl ux was determined using the non-stationary respiratory chambers by the alkaline absorption method, with averaging of the results during the day and the frequency of once a month. Results. During the warm period, the emission of carbon dioxide from the soil changes dynamically depending on temperature and humidity. The maximum of emission coincides with the periods of warm summer showers in June-July, the minimum values are characteristic for the late autumn period. The total emission losses of carbon in chernozems over the vegetation period ranged from 480 to 910 kg/ha and varied depending on the methods of tillage ± (4.0–6.0) % and fertilization systems ± (3.8–7.1) %. The changes in the intensity of CO 2 emission from the soil under different methods of soil tillage are associated with hydrothermal regime and the depth of crop residues location. The biggest difference is observed im- mediately after tillage, but in the spring period the differences are only 12–25 %, and after drying of the top layer of soil become even less. Direct seeding technology provides the greatest emission of CO 2 from chernozem, which is fa- cilitated by better water regime and more complete mineralization of plant residues on the soil surface. Annual losses of carbon are the least under disking of soil at 10–12 cm. The changes in the intensity of CO 2 emission from the soil under different fertilization systems are associated with the involvement of the additional organic matter from plant residues and manure to the microbiological decomposition. The greatest emission was observed under the organic- mineral fertilization system, which increased the loss of carbon by 7–8 % in comparison with the mineral system in the unfavorable hydrothermal year and by 11–15 % in the more favorable year. These differences are observed mainly during the fi rst half of the growing season when there is a clear tendency to increase the intensity of soil respiration. Conclusions. The hydrothermal conditions of the warm period of the year are decisive in the formation of the CO 2 emission fl ow from chernozems. Due to the improvement of agricultural practices, emissions might be reduced but not more that by 15 % of natural factor contribution.

Effect of Non-flooded Straw-mulching Cultivation on Grain Yield and Quality of Direct-seeding Rice

2011 ◽  
Vol 37 (10) ◽  
pp. 1809-1818
Author(s):  
Zi-Chang ZHANG ◽  
Hong-Wei LI ◽  
Xue-Ming WANG ◽  
Li-Min YUAN ◽  
Zhi-Qin WANG ◽  
...  
Keyword(s):  
Grain Yield ◽  
Direct Seeding ◽  
Straw Mulching ◽  
Yield And Quality ◽  
Grain Yield And Quality

Nutrition characteristics in root surface and rhizosphere soils of direct-seeding rice in rice-duck eco-farming system

2010 ◽  
Vol 18 (6) ◽  
pp. 1151-1156 ◽  
Author(s):  
Jian-Kai SHEN ◽  
Huang HUANG ◽  
Zhi-Qiang FU ◽  
Yang-Zhu ZHANG ◽  
Pan LONG ◽  
...  
Keyword(s):  
Farming System ◽  
Root Surface ◽  
Direct Seeding ◽  
Rhizosphere Soils

scholarly journals Lessons on direct seeding to restore Neotropical savanna

2019 ◽  
Vol 138 ◽  
pp. 148-154 ◽  
Author(s):  
Alexandre B. Sampaio ◽  
Daniel L.M. Vieira ◽  
Karen D. Holl ◽  
Keiko F. Pellizzaro ◽  
Monique Alves ◽  
...  
Keyword(s):  
Direct Seeding ◽  
Neotropical Savanna

scholarly journals Effects of different mechanical direct seeding methods on grain yield and lodging resistance of early indica rice in South China

2021 ◽  
Vol 20 (5) ◽  
pp. 1204-1215
Author(s):  
Wen-xia WANG ◽  
Jie DU ◽  
Yan-zhi ZHOU ◽  
Yong-jun ZENG ◽  
Xue-ming TAN ◽  
...  
Keyword(s):  
Grain Yield ◽  
South China ◽  
Indica Rice ◽  
Direct Seeding ◽  
Lodging Resistance ◽  
Early Indica Rice

scholarly journals Luffa Gourd Production Practices from Transplanting and Direct Seeding Methods for Composite Productions

2021 ◽  
Vol 685 (1) ◽  
pp. 012024
Author(s):  
Asmah Awal ◽  
Salwa Adam ◽  
Shampazuraini Shamsuri ◽  
Nor Azma Yusuf ◽  
Nordiana Ibrahim ◽  
...  
Keyword(s):  
Direct Seeding ◽  
Production Practices
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