The chisel plough is the most important soil preparation machinery for planting and its
direct effect on the physical properties of the soil is reflected in the cultivated yield.
The purpose of this research is to evaluate the performance of the lo
cal chisel plough
through its positive effects on the physical properties of soil so as to tillage heavy clay soil,
the most difficult types of soils, and then determine the time period for the disappearance
of these effects and the return of the soil as it was prior to tillage and planting in terms of
these physical properties. When planting the wheat crop under Syrian conditions.
The actual field capacity of the plough was (1.01 hec/h) and field efficiency (79.53%), and
consumed fuel (13.97 l/h).
There was a positive change in the physical properties of the soil due to the use of the
chisel plough and two perpendicular faces, where the bulk density of the soil decreased
(23.8%) and moisture content from (30.85%) to (28.33%). While increasing the total soil
porosity (13.26%) and air porosity (56.76% ) and void ratio (45.71%).
It was found that the positive effects of the chisel disappear during one agricultural season.
The process of tillage cannot be dispensed with the tillage to cultivate the wheat crop under
the Syrian conditions (the Algab area). It must be done the traditional tillage (two faces),
Where it was found that the soil return to its status before tillage and planting after (180)
days, before the end of the planting season and before harvesting the wheat crop by about a
month.
It was found that some of the physical properties of the soil contributed to determining the
time period for the return of the soil properties as they were prior to tillage. These include
the bulk density of the soil, the total porosity of the soil and the void ratio that are directly
affected by tillage.
Some of the physical properties did not contribute to determining the time period for the
return of soil properties as they were prior to tillage. They include both soil moisture
content and air porosity, which are affected by tillage, but are more affected by climatic
conditions such as temperature and rainfall.
The experiment was carried out in agricultural season (2015-2016) in
Zahid local for field agricultur in Tartous to study the effect of different
systems of tillage (zero tillage, plowing of the chisel plow, moldboard
plowing and disc plowing ) on
the growth and productivity of rainfed
barley, the land was cultivated in the first half of November with barley
varieties (Hordeum sp ) and used randomized complete design 7
treatments with 3 replicates were used with L.S.D test at 5% level.
There are different impacts of the methods of agricultural soil tillage in
agricultural production, the method of the basic methods in farming
conditions for plant growth, and increase production, by reducing the
negative factors that may be caused by use other methods of
tillage.
A research was conducted in the northern and western area of Homs province
using four methods of tillage namely; Surface Disk ploughing, Turning Ploughing,
Standard Disk Ploughing, and Chisel
Ploughing. The prepared soil resulted of this research was planted
with cumin) Cuminum cyminum L.).
The agricultural land of the experiment was cultivated by
different methods of double rotated tillage such as; the turningturning
tillage, turning- surface tillage, and turning- hard tillage as
well as to control (without tillage). The cultivated land planted
with peas مPisum sativum ة was in the western and northern area of
Homs province.
The type of tillage methods is considered to be as an important
factor for seed bed preparation, consequently, this will be reflected
in the quantity and quality of production, different types of tillage
methods were used such as turning plough, s
tandard disk plough
etc, for Anise Pimpinella anisum seed bed preparation, the
experiment was conducted in the western area of Homs province.
The type of tillage methods is considered to be as an important
factor for seed bed preparation, consequently, this will be reflected
in the quantity and quality of production, in comparison to control
(minimum tillage) different types of tillage
methods were used such
as turning plough, standard disk plough etc, for Anise Pimpinella
anisum seed bed preparation, the experiment was conducted in the
western area of Homs province.
The experiment was conducted at the Agricultural Research Center in Salamiah in Hama province, in
clay loam soil in October 2010. Furat tractor with a single hung disk harrow was used as a machinery unit,
using three speeds. the seeding with drill
seeder was executed after Applying tillage one time for the systems
required one face, and twice for the systems required two, while a plot of land was left for" zero tillage"
system.
The research was carried out during the growing seasons of 2011 and 2012 to study
the effect of land leveling by laser, three tillage depths(01, 25 and 35cm) and three
irrigation systems with 7, 8, and 9 day intervals, along with the interactive ef
fect between
them on the yield of cotton (C.V Aleppo-90), irrigation management and net grossing. The
study showed the following results:
1- Land leveling by laser significantly increased the seed cotton yield, saved
irrigation water, and made net grossing higher as compared to no-leveling by laser through
the two seasons.
2- The two depths of tillage (25 and 35cm) significantly increased the seed
cotton yield, increased the irrigation water amount, and made net grossing higher as
compared to the depth of tillage (10cm)..
3- Increasing the irrigation water amount significantly increased the seed
cotton yield which reached 1441KG/H, and achieved higher grossing which reached 31360
S.P/H as compared to the lower irrigation water amount.
4- The interactive effect between the factors of this experiment gave a
significant positive difference. The best results were at (deep tillage 35cm × intervals 7
days × leveling by laser) through two seasons.
The reasearch was carried out during 2009 – 2010 in Al – Hasaka – Amoda - to study
the effect of cattle manure at the rat of 30 ton / ha , and four organic green manure ( Lentil,
Vetch, Faba bean and Barely) on soil content of organic matter and so
me mineral elements
compared with chemical fertilizer 400 kg / ha urea , 83 kg / ha P2O5 and 25 kg / ha K2O .
The manure significantly increased organic matter , phosphorus and potassium
concentrations compared with other fertilizers ( chemical and green fertilizers ) . All green
fertilizers ( Lentil , Vetch , Faba bean and Barely ) significantly increased organic matter ,
nitrogen and potassium concentration compared with the control without using any
fertilizer , the tillage depth ( 0 – 10 ) cm significantly increased soil content of organic
matter and nitrogen compared with deeper tillage ( 25 – 30 ) cm during the two seasons .