3 edition of Estimating the amount of crop residue on a field found in the catalog.
Estimating the amount of crop residue on a field
F. L. Duley
by U.S. Dept. of Agriculture, Agricultural Research Service, in cooperation with Nebraska Agricultural Experiment Station in Washington, D.C
Written in English
|Series||Agriculture handbook / United States Department of Agriculture -- no. 136, Agriculture handbook (United States. Dept. of Agriculture) -- no. 136.|
|The Physical Object|
|Pagination||31 p. :|
|Number of Pages||31|
Estimating crop yield To calculate yield, use the head or pod number per metre square already calculated, count the number of grains in at least 10 heads or pods and calculate average number of grains per head or pod. technology. These county-level residue retention coefficients were used along with residue production costs to estimate crop residue supply. Residue production has two distinct costs—a grower payment and a cost for collecting the residue (e.g., shredding, baling, and moving bales to the field edge). The.
Agronomy Journal Abstract - Estimating Corn Growth, Yield, In-row residue cover due to tillage and previous crop can have a major impact on the growth and development of corn in the northern Corn Belt. These factors should be considered in selecting tillage systems in this region. In the manufacturer submitted to the EPA a substantial amount of residue data obtained from field trials in support of the continued registration of benomyl. These data are useful because they included information on the application rate (i.e., frequency of application [%] and amount used) and on the residue levels detected in each sample.
rate, trampling, the amount of residue components avail-able, and environmental factors (Figure 1). Comparisons have shown that gains increase as stocking rate decreases. Residue (leaf and husk) remaining in the field after grain harvest is related to grain yield. There are some differences in the amount of residue depending on hybrids Size: 2MB. Estimating Yield Goal for Crops Introduction Many crop management decisions require farmers or their agronomist, crop consultant, or nutrient consultant to make an estimation of the expected yield from a given field. Farmers recognize that yields for the same crop are variable from field-to-field and that a given cropFile Size: KB.
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Estimating the Amount of Crop Residue on a Field: Agriculture Handbook No. Duley] on *FREE* shipping on qualifying offers. 31 pages, estimating amount of residue in fields from various grain, fiber and grass crops, bw illustrations. the amount of residue present and its orientation (i.e., whether upright or flat).
Standing residue is more effective than flattened residue in reducing wind erosion. Methods for Estimating Residue Cover Cropland residue cover estimation is not only useful in planning field operations to maintain erosion control.
Estimating crop residue cover The line transect method The line transect method has been proven effective in estimating the percent of the ground surface covered by plant residue at any time during the year.
Estimates of percent cover are used for determining the impact of residue on sheet and rill Size: KB. Additional Physical Format: Print version: Duley, F.L.
Estimating the amount of crop residue on a field (DLC)agr (OCoLC) Material Type. Estimating the amount of crop residue to harvest. If your average yield for continuous corn yield is bu/acre, approximately 5 ton/acre of crop residue are produced (1 ton / 40 bu X bu).
If more crop residue is needed for water erosion control, for example ton/acre/year, compared with wind erosion control or other constraints, than. tial amount of corn residue in lbs/A or percent cover can be reduced for overwinter weathering, grazing, tillage operations, and planting operations by the following amounts.
Methods for estimating residue Estimating residue can be useful in planning field operations to control soil erosion or to determine whether adequate residue remains to. component is unknown. The information basis for estimating the amount of crop residue needed to maintain soil organic matter is incomplete.
To maintain soil organic matter the best current estimate is that 2 to 3 ton/acre of crop residue should be left in the field annually through conservation tillage or no-till Size: KB. Compare your fields' residue cover to that in the photos herein that show a known percentage of crop residue.
Remember that the perspective from an angle can be misleading. Look straight down when comparing photos. Calculation. Calculation is a good way to get a rough estimate of remaining residue without going to the field.
There are two types of agricultural crop residues. Field residues are materials left in an agricultural field or orchard after the crop has been residues include stalks and stubble (), leaves, and seed residue can be ploughed directly into the ground, or burned first.
In contrast, no-till, strip-till or reduced till agriculture practices are carried out to maximize. 1 When a previous legume crop is checked on the Penn State Soil Test Information Sheet, the residual nitrogen for the year following the legume is taken into account in the recommendation.
This is noted on the soil test report; therefore, no further adjustment is necessary. Manure History of the Field. The basic N recommendation from the soil test or from Table 1 above also. ESTIMATING CROP RESIDUE AVAILABLE FOR GRAZING INTRODUCTION keep some residue in the field.
The amount of residue required to minimize erosion varies with the type of residue present, type of soil, the slope of the land, and the presence of barriers (terraces, windbreaks, etc.). the whole field, such as end rows. Measure residue be-fore and after any field operation to find out how much residue is burried with a single pass of that piece of equipment.
For purposes of crop residue values for soil conservation sys-tems, the residue cover is measured after planting.
1 Follow a crop rotation sequence with high residue File Size: 3MB. The examples show that a 20 percent residue cover will reduce erosion by about 50 percent of that occurring from a cleanly tilled field while a 30 percent cover can reduce erosion by as much as 65 percent.
ESTIMATING CROP RESIDUE RETENTION. Step 1. Whatever the focus, accurate measurement of the amount of crop residue left in the fi eld aft er harvest is important. Th ere are several methods to estimate crop residue.
One method estimates crop residue from measured yield data for a location using the harvest index (HI). For example, Johnson et al. () used HI toCited by: 6. Following physiological maturity in October, grain and stover yields were measured. In all plots corn residue was chopped after harvesting.
In residue removal plots, stover was baled, and removed. The amount of residue remaining after baling was measured in at 16 locations that were m 2 in size. For these measurements, the stover was Cited by: 4. The amount of residue in the field. The concentration of nutrients in the residue.
√ In the examples that follow, assume that most of the P and K remain on the field after the residue fire. Also assume that % of the N and 75% of the S were lost. Estimating amount of residue For most crops, the weight of residue is roughly equalAuthor: Ron Gelderman.
Chapter 7 Use of crop residues and straw decay factor or humification rate (Table 11) and t is year. In subsequent modelling steps k is corrected for temperature, moisture and plant development (A); and different decay rates (k) are introduced per organic matter 1 Average crop parameters for organic matter production on agricultural landFile Size: 2MB.
The Crop Residue Index Multiband model, a more physically based model, correctly predicted residue cover categories for 30 to 64 percent of fields when five or two categories were used in.
However, if we assume a harvest index of, and for wheat, barley, rapeseed and pea crops respectively (Fan et al., ), and an average ratio of. crop residue production in was Tg for the whole country. We estimated that the total mass of crop residue burned in was Tg (Eq.), accounting for 23% of the total residue.
The provincial production of crop residue and the mass of residue burned in the field in China is shown in Fig. by:. Estimating the amount of crop residue on a field / (Washington, D.C.: U.S.
Dept. of Agriculture, Agricultural Research Service, in cooperation with Nebraska Agricultural Experiment Station, ), by F. L. Duley (page images at HathiTrust).
The main crop Iowa grows is corn and the crop residue corn produces each year is the most readily available feedstock for making cellulosic ethanol and for animal use. But that residue plays a very important role in sustaining soil quality which must be kept in mind when deciding how much corn stover to harvest and how much to leave on a field.Estimating the value of crop residues.
Summary; Retaining crop residues on a field improves or maintains soil quality and moisture. The economic value of retaining or removing crop residues from the field depends on the following: present level of soil organic matter; field's soil erosion risk; nutrient levels in the residues and soil; soil.