2 edition of Effect of a pre-irrigation period on the activity of ethofumesate applied to dry soil found in the catalog.
Effect of a pre-irrigation period on the activity of ethofumesate applied to dry soil
Written in English
|Statement||by David McAuliffe.|
|The Physical Object|
|Pagination||, 70 leaves, bound :|
|Number of Pages||70|
Soil Moisture Estimation by Feel Method Descriptions are for sandy loam soils Moist soil ball, medium 75–% soil stain on fingers Moist ball, dark color, light soil stain on fingers 50–75% Soil ball is weak, but finger marks show 25–50% Ball of soil is weak and grains break away quickly 0–25% Moisture Description content. The crops were subjected to soil moisture deficit stress by withholding irrigation for 30 d, starting at 20 d after sowing (treatment T ), and for 25 d starting at 20 d (T ). In treatment T , the stress period was followed by two relief irrigations with an interval of 5 d.
The first component of the critical period examines the effect of weeds that emerge with the crop that are then removed after a set duration, while the second component examines the effect of weeds that emerge some time after crop emergence and remain until crop harvest. percent change in yellow nutsedge tubers in the soil, and dry bean and. Ultisol, which is a common soil for sweet corn in Malaysia. The pH of the untreated soil was , while the exchangeable Al was cmol c kg-1 (Table 1). According to the sweet corn's requirements, a suitable pH of the soil should be more than pH 5; therefore, the soil for this study was limed at 2 t.
moisture content that is called as optimum soil moisture range for plant growth. The upper limit of the optimum soil moisture range is the field capacity ( to Mpa) and the lower limit is just above the wilting point( Mpa). The objective of irrigation is to store the moisture in the soil between these limits. grain and dry matter nitrogen use efficiency in both hot-wet and cold-dry cropping periods. Soil moisture distribution, water flow direction and deep percolation were primarily affected by irrigation method and irrigation level in the cold-dry season and by a combined effect of irrigation level and rainfall events in .
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Effect of a Pre - Irrigation Period on the Activity of Ethofumesate Applied to Dry Soil' DAVID McAULIFFE and ARNOLD P. APPLEBY2 Abstract. Applications of ethofumesate ((?)ethoxy-2, 3 - dihydro - 3, 3 - dimethyl - 5 - benzofuranyl methanesulfo-nate] at rates from to kg/ha were made in the field to soils of 2 and 30% (w/w) soil moisture.
The herbicide was extracted from the soils with hot methanol 0, 2, 4, 6, and 12 days after application. A gas chromatography analysis for ethofumesate revealed no loss in the amount of herbicide applied to wet soil over the day period while in the dry soil, the amount extracted after 12 days was 10% of the amount extracted at 0 by: 4.
Effect of a pre-irrigation period on the activity of ethofumesate applied to dry soil. Abstract. Graduation date: Applications of ethofumesate in Oregon have been observed from\ud previous research and from commercial use to be less effective when\ud applied to dry soils, even if subsequent precipitation occurred\ud within a few days.
McAuliffe, D, Appleby, AP () Effect of pre-irrigation period on the activity of ethofumesate applied to dry soil. Weed Sci – McIntosh, MS () Analysis of combined by: 1.
Effect of a Pre-Irrigation Period on the Activity of Ethofumesate Applied to Dry Soil. was significantly less effective on both corn and wheat when applied to dry soil than to wet soil. Effect of pesticides (difenoconazole, deltamethrin, ethofumesate) at 5, 50 and mg kg − 1 DW soil on (A) dehydrogenase activity and (B) the respiratory quotient (Q R: ratio of basal respiration to substrate-induced respiration).
Mean values (n = 4) ± S.D. Different letters indicate statistically significant differences among treatments. the soil surface. Water is required to fill the pores of the soil and also satisfies evaporation and subsurface runoff requirements.
As a rough guide, to inches of water are required for each foot of water table rise. For example, a field with a pre-irrigation water table 60 inches deep may.
Effect of a Pre-Irrigation Period on the Activity of Ethofumesate Applied to Dry Soil. Article. Nov ; David McAuliffe. Arnold P. Appleby. Sustains soil biological and chemical activity and mineralization during dry periods: In seasonally dry areas, irrigation water artificially extends the time period in which soil biological activity and nutrient release are elevated, creating more optimal growing conditions for cultivated crops 2.
Highlights Half-lives of difenoconazole, deltamethrin and ethofumesate w 36 and 29 days. Pesticide degradation rates were similar in NPK-fertilized and non-fertilized soils.
Compost had a stimulatory effect on difenoconazole and deltamethrin degradation. Pesticides caused a short-term inhibitory effect on soil microbial activity.
Fertilizers modified non-target effects of pesticides on. Effect of Irrigation Period and Organic Fertilization (TOP 10) on organic fertilizer is able enhance soil microbial activity of soil, such as improving activity of soil enzymes and increasing soil microbial biomass (Sun (46% N) was applied as a form of urea in two split equal doses (at 6 leaves stage, and after 30 days from first.
Soil moisture contents were monitored in m depth increments to m prior to and after irrigation weekly from the plots of the second replication (block) throughout the growing season. Soil samples were taken at positions immediately under the drippers. Soil moisture was determined by the gravimetric method (oven dry basis).
The purpose of this study was to estimate the expected effects of sprinkler irrigation, applied depending on the rainfall amounts, on the yield increasing of marketable carrot roots (Daucus carota L.). The experiment was performed on light soil in different regions of Poland at the critical period considered from May 1st to July 31 st.
RDI applied to olives over a ten-week period following pit hardening had no adverse effect on oil production (Alegra et al., ). Moderate levels of water stress applied to prunes (Prunus domestica), by withholding irrigation in a deep soil during stage II of fruit growth, increased return fruit bloom, crop load, and total fruit dry matter.
The invention relates to the use of, or method of using, a composition comprising ethofumesate in the protection of wheat crops.
The crop is preferably winter wheat and is preferably pre-emergences or crop emergence not before ZCK Compositions comprising ethofumesate in combination with other herbicides are also provided. Irrigated agriculture is one of the significant contributors to the food security of the millennium development goals (MDGs); however, the modification of soil matrix by irrigation could alter the overall soil health due to changes in soil properties and processes.
The objective of the study was to evaluate the effect of irrigation on soil quality status of the Ikere center pivot irrigation. Effect of a pre-irrigation period on the activity of ethofumesate applied to dry soil. Weed Sci – Google Scholar D. McAuliffe and A. Appleby. Activity loss of ethofumesate in dry soil by chemical degradation and adsorption.
Weed Sci. Reciprocal Effects of EPTC, CDEC, and Certain Ions on Their Absorption by Tomato (Lycopersicon esculentum) Effect of a Pre-Irrigation Period on the Activity of Ethofumesate Applied to Dry Soil. Effect of a Pre-Irrigation Period on the Activity of Ethofumesate Applied to Dry Soil (pp.
) David McAuliffe and Arnold P. Appleby https. study), θt (mg water g −1 dry soil) is the target soil moisture content on a weight-basis after SI, and θn (mg water g−1 dry soil) is the soil moisture content on a weight-basis before irrigation.
θt was calculated as follows: where θmax (mg water g −1 dry soil) is the field capacity and θr (%) is the target relative soil. Wardle D. A.; Parkinson D. Effects of three herbicides on soil microbial biomass and activity.
Plant Soil, 21– [Google Scholar] Zabaloy M. C.; Gomez M. Microbial respiration in soils of the Argentine Pampas after metsulfuron methyl, 2,4-D, and glyphosate treatments.
Commun. Soil Sci. Plant Anal. 39, – [Google. Effect Of Irrigation Technology On Vegetable Production During Dry Season. Introduction. Background to the study. Dry season vegetable irrigation system plays a leg role in the economy of Nigeria as a basic source of food, income, and employment generation especially in the off season of rainfall agriculture (Ojo et al, ).Irrigated agriculture will need to expand rapidly in the.
Lithuania sugar beet growers have few herbicide options available for weed management. Six field trials were conducted at the Institute of Agriculture, Lithuania, in order to evaluate the effects of chemical weed management in sugar beet.
Treatments included untreated and hand-weeded control and several rates of phenmedipham plus desmedipham plus ethofumesate, phenmedipham, ethofumesate.Total applied water was mm and evapotranspration rate was mm (sprinkle), mm (drip) inrespectively growing period.
There was a similar trend for applied water and water use of sesame in both years. Since precipitation was higher in compared tosoil moisture storage was higher in according to soil moisture in.