Productivity of some Tomato Hybrids Sprayed with Potassium Silicate Grown in Sandy Soil at Arid Regions

2021 ◽  
Vol 12 (11) ◽  
pp. 1261-1270
Author(s):  
A. A. Alkharpotly ◽  
K. G. Abdelrasheed
Keyword(s):  
Sandy Soil ◽  
Arid Regions ◽  
Potassium Silicate

NEW ASILID FLIES OF THE GENUS ABLAUTUS WITH A KEY TO THE SPECIES

1935 ◽  
Vol 67 (10) ◽  
pp. 222-227 ◽  
Author(s):  
J. Wilcox
Keyword(s):  
Sandy Soil ◽  
Arid Regions ◽  
Sandy Desert ◽  
The West ◽  
Additional Material ◽  
Desert Region ◽  
Superficial Resemblance ◽  
Robber Flies

Three of the species of Ablautus Loew described here have been on hand for several years and, as no additional material has become available, there seems to be no reason for delaying their description longer. These small robber flies inhabit the more arid regions of the West and Southwest and seem to prefer sandy localities in the sage brush. Osten Sacken commented on the fact that Ablautus mimus O. S. was associated with Lestomyia sabulonum O. S. on sandy soil and seems to mimic it; and Melander says, regarding Cyrtopogon ablautoides Mel., “The species presents a curious superficial resemblance to Ablautus mimus O. S., with which it is associated in the sandy desert region.”

scholarly journals New measures of deep soil water recharge during vegetation restoration process in semi-arid regions of northern China

2020 ◽  
Author(s):  
Yiben Cheng ◽  
Hongbin Zhan ◽  
Wenbin Yang ◽  
Qunou Jiang ◽  
Yunqi Wang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Sandy Soil ◽  
Arid Regions ◽  
Soil Layer ◽  
Soil Particle ◽  
Sandy Land ◽  
Deep Soil ◽  
Artemisia Sphaerocephala ◽  
The Impact ◽  
Semi Arid

Abstract. Desertification in semi-arid regions is currently a global environmental and societal problem. This research attempts to understand whether a 40-year-old rain-feed Artamisia sphaerocephala Krasch sand-fixing land in Three North Shelterbelt Program (3NSP) of China can be developed sustainably or not, using a newly designed lysimeter to monitor the precipitation-induced deep soil recharge (DSR) at 220 cm depth. Evapotranspiration is calculated through a water balance equation when precipitation and soil moisture data are collected. Comparison of soil particle sizes and soil moisture distributions in artificial sand-fixing land and neighboring bare land is made to assess the impact of sand-fixing reforestation. Results show that such a sand-fixing reforestation results in a root system being mainly developed in the horizontal direction and the changed soil particle distribution. Specifically, the sandy soil with 50.53 % medium sand has been transformed into a sandy soil with 68.53 % fine sand. Within the Artamisia sphaerocephala Krasch sand-fixing experimental area, the DSR values in bare sand plot and Artemisia sphaerocephala Krasch plot are respectively 283.6 mm and 90.6 mm in wet years, reflecting a difference of more than three times. The deep soil layer moisture in semi-arid sandy land is largely replenished by precipitation-induced infiltration. The DSR values of bare sandy land plot and Artemisia sphaerocephala Krasch plot are respectively 51.6 mm and 2 mm in dry years, a difference of more than 25 times. The proportions of DSR reduced by Artemisia sphaerocephala Krasch is 68.06 % and 96.12 % in wet and dry years, respectively. This research shows that Artamisia sphaerocephala Krasch in semi-arid region can continue to grow and has the capacity of fixing sand. It consumes a large amount of precipitated water, and reduces the amount of DSR considerably.

scholarly journals New measures of deep soil water recharge during the vegetation restoration process in semi-arid regions of northern China

2020 ◽  
Vol 24 (12) ◽  
pp. 5875-5890
Author(s):  
Yiben Cheng ◽  
Xinle Li ◽  
Yunqi Wang ◽  
Hongbin Zhan ◽  
Wenbin Yang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Sandy Soil ◽  
Arid Regions ◽  
Soil Layer ◽  
Soil Particle ◽  
Sandy Land ◽  
Deep Soil ◽  
Artemisia Sphaerocephala ◽  
The Impact ◽  
Semi Arid

Abstract. Desertification in semi-arid regions is currently a global environmental and societal problem. This research attempts to understand whether a 40-year-old rain-fed Artemisia sphaerocephala Krasch sand-fixing land as part of the Three North Shelterbelt Program (3NSP) of China can be developed sustainably or not using a newly designed lysimeter to monitor the precipitation-induced deep soil recharge (DSR) at 220 cm of depth. Evapotranspiration is calculated through a water balance equation when precipitation and soil moisture data are collected. A comparison of soil particle sizes and soil moisture distributions in artificial sand-fixing land and neighboring bare land is made to assess the impact of sand-fixing reforestation. Results show that such a sand-fixing reforestation results in a root system being mainly developed in the horizontal direction and a changed soil particle distribution. Specifically, the sandy soil with 50.53 % medium sand has been transformed into a sandy soil with 68.53 % fine sand. Within the Artemisia sphaerocephala Krasch sand-fixing experimental area, the DSR values in the bare sand plot and Artemisia sphaerocephala Krasch plot are respectively 283.6 and 90.6 mm in wet years, reflecting a difference of more than 3 times. The deep soil layer moisture in semi-arid sandy land is largely replenished by precipitation-induced infiltration. The DSR values of the bare sandy land plot and Artemisia sphaerocephala Krasch plot are respectively 51.6 and 2 mm in dry years, a difference of more than 25 times. The proportions of DSR reduced by Artemisia sphaerocephala Krasch are 68.06 % and 96.12 % in wet and dry years, respectively. This research shows that Artemisia sphaerocephala Krasch in semi-arid regions can continue to grow and has the capacity to fix sand. It consumes a large amount of precipitated water and reduces the amount of DSR considerably.

Contributions Towards a Revision of Daviesia (Fabaceae: Mirbelieae). IV.* D. ulicifolia sens. lat.

1997 ◽  
Vol 10 (1) ◽  
pp. 31 ◽  
Author(s):  
Gregory T. Chandler ◽  
Michael D. Crisp
Keyword(s):  
New Species ◽  
Sandy Soil ◽  
Arid Regions ◽  
New South ◽  
Cladistic Analysis ◽  
South Australia ◽  
Phylogenetic Groups ◽  
South Wales ◽  
Yorke Peninsula ◽  
A New Species

Following a morphometric and cladistic analysis of the Daviesia ulicifolia Andrews group (Chandler and Crisp 1997), a new species, D. sejugata, is described. It occurs disjunctly in eastern Tasmania and southern Yorke Peninsula, South Australia, and is closely related to D. arthropoda F.Muell., differing in a generally more robust habit, thicker fleshy phyllodes, and larger flowers. Even with this species removed from D. ulicifolia, the latter varies considerably over a wide geographic, edaphic and altitudinal range. Daviesia ulicifolia is divided into six subspecies based on distinct phenetic and phylogenetic groups delimited in the earlier study. These are subsp. aridicola (glaucous plants in arid regions), subsp. incarnata (reddish-flowered plants in the Mt Lofty Range, South Australia), subsp. ruscifolia (plants with ovate-acuminate leaves and orange flowers in Victoria and southern New South Wales (NSW), often at high altitude), subsp. stenophylla (a narrow-leaved form in northern NSW and Queensland), subsp. pilligensis (ovate-leaved plants on sandy soil in western NSW), and subsp. ulicifolia (a paraphyletic residual from south-eastern states).

scholarly journals The Application of Hydrogel in Agriculture for Reducing High Pumping of Irrigation Water in Algeria

2021 ◽  
Author(s):  
Abdelhakim Boutalbi ◽  
Mohammed seghir NILI
Keyword(s):  
Climate Change ◽  
Soil Moisture ◽  
Sandy Soil ◽  
Irrigation Water ◽  
Agricultural Soil ◽  
Arid Regions ◽  
Water Shortage ◽  
Soil Moisture Retention ◽  
Different Doses ◽  
Semi Arid

Abstract The application of hydrogel in agriculture has gained a wide interest in the last decades due to the great benefits that it has provided to this sector. In Algeria, agriculture suffers from two main issues: water shortage and climate change, especially in the south of the country (Sahara), which is classified within the arid and semi-arid regions, where irrigation is based exclusively on groundwater. This paper presents an experiment of hydrogel application in agricultural soil for reducing overexploitation of groundwater used for irrigation. Hydrogels are super absorbent polymers. They are biodegradable and have the ability to absorb and retain a large amount of water. The aim of this work is to evaluate the effect of hydrogel on the efficiency of soil moisture retention through treating sandy soil with different doses of hydrogel. The results indicate that the application of hydrogel can increase the water retaining capacity of sandy soil up to 40%.

scholarly journals Using of Potassium Silicate to Alleviate Drought Stress Effect on Peanut as Grown in Sandy Soil

2021 ◽  
Vol 26 (3) ◽  
pp. 109-119
Author(s):  
Mahmoud Gomaa ◽  
Ibrahim Fathallah Rehab ◽  
Essam Kandil ◽  
Ali Ali ◽  
Waleed Abd elhafez
Keyword(s):  
Drought Stress ◽  
Sandy Soil ◽  
Potassium Silicate ◽  
Stress Effect
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