HomeMy WebLinkAbout830394.tiff A819225118
ORDINANCE NO. 108
PERMIT NO. 83-5
PERMIT FOR PLOWING GRASSLAND
APPLICANT NAME: -ryi��( n
ADDRESS: 'y5 w e � zhJ� 2_6 FC 77(/
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+.4ww LEGAL DESCRIPTION OF PROPERTY TO BE CULTIVATED (Map delineating
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the proposed land use change attached) :
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.r;.- APPROVED SOIL CONSERVATION PLAN ATTACHED.
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L.Li PERMIT ISSUED BY THE CLERK TO THE BOARD OF COUNTY COMMISSIONERS
in`- OF WELD COUNTY, COLORADO.
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ri is � l '. ®d
CC ta { Weld my Clerk & Recorder
and Clerk to the Board
.. . . SEcot)�� ,
Cra
Landowner Iatt j Dep ty County Cle k
Date: (-1/ 6 - /
This permit is issued pursuant to Weld County Ordinance No . 108
adopted by the Weld County Board of County Commissioners
on May 19, 1982 , and requiring the issuance of permits for
the plowout and cultivation of grassland. Pursuant to Ordi-
nance No . 108, the landowner is required to follow a conserva-
tion plan approved by the local Conservation District Board.
The landowner is advised to contact the local Soil Conserva-
tion District Board for any amendments or updates to the
Conservation Plan .
8303S4
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Crop Residue Use 344-3
III. Irrigated Crops
A. The pounds of residue required on the soil surface during the
critical erosion period are as follows.
Wind Erodibility Drilled Crops
Groups 20" rows or less Row Crops
1 & 2 1500 2500
3 & 4 1000 1750
5, 6 & 7 750 1000
B. Critical Erosion Periods (Modified for Necessary tillage)
1. W.E.G. 's 1&2 Sprinkler Irrigated - Maintain the required amounts
of residue until the planted crop has enough growth to protect
— — the soil.
2. Gravity Irrigated Row Crops — Maintain the required amounts of
residue as long as feasible after harvest. The cropping system
and method of irrigation are to be considered. If fall plowing
destroys the residue, the field will be left rough and cloddy
until spring seedbed preparation, (about March 1st as a
minimum).
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TGN #178 USDA/SCS/COLORADO/ 10/81
344-2 Crop Residue Use
G. Planning Considerations
1 . Subsurface tillage equipment such as sweeps, blades and
rodweeders should be used for most tillage operations.
2. Chemical weed control to reduce the number of tillage operations
is beneficial in managing the residue. -
3. Reducing field widths is an effective way to reduce the need for
on
large amounts of crop residue.
4. When inadequate residue is produced the soil surface will be
ridged by chiseling or listing.
II. Non—Irrigated Sorghums
A. Pounds of residue required through the critical wind erosion period
(November-May).
Minimun Required
Crop and Spacing Residue
; ;
1. Drilled sorghums on row 750#
spacing of 20" or less
_ 2. Forage sorghum on 1000#
20" - 40" rows
3. Grain sorghum on 1500#
t—
er 20" - 40" rows
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When the above residue requirements are met, the practice will be considered
m _ adequate to hold the soil loss to the acceptable "T" level.
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>- 1 . The above amounts of residue will be left on the soil surface
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through May or until spring seedbed preparation which usually
occurs in early April. Spring seedbed preparation should result
N in a ridged surface for wind erosion protection.
2. When inadequate residue is produced the soil surface will be
ridged by chiseling or listing. Soils coarser than sandy loam
usually require listing to provide satisfactory surface
roughness.
3. Grazing will be restricted on machine harvested crops when
marginal amounts of residue are produced.
USDA/SCS/Colorado/ 10/81 TGN #178
UNITED STATES DEPARTMENT OF AGRICULTURE Technical Guide
Soil Conservation Service Section IV
Colorado All Field Offices
October 1981
STANDARDS AND SPECIFICATIONS
CROP RESIDUE USE - (ac.) 344
Definition B. Each field will be evaluated for
potential wind and water erosion
- Using plant residues to protect using the Wind Erosion Curves and
cultivated fields during critical the Universal Soil Loss Equation.
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erosion periods.
C. If only one of the erosion
Purpose hazards (wind or water) is signifi—
cant, the land treatment will be
To conserve soil moisture, increase planned so that erosion from neither
_ soil infiltration, reduce soil loss, wind nor water will exceed the
and improve soil tilth. designated "T" value for that soil.
Condition where practice applies D. If both wind and water erosion
are significant in a given field,
On land where crop residues are land treatment shall be planned so
"' produced.
that the total soil loss from wind
and water does not exceed the desig-
Specifications nated "T" value.
I. Non-Irrigated Small Grain — Use E. If the treatment is planned to
the "Guide for Wind Erosion Control control wind erosion the technician
= — on Cropland" or Agronomy Note #53 will record (1) the amount of
for guidance on amounts of residue residue required on the soil surface
_ required on the soil surface during at planting time, (2) the unshel-
the critical wind erosion season. tered distance usually described as
irs u_LN
This will normally be considered as field width perpendicular to the
r z the amount of flat small grain prevailing winds, (3) ridge rough-
= stubble equivalent residue after the ness factor, i.e. , unridged.
planting operation.
hi F. If the treatment is planned ,
at r A. To calculate residue require- primarily to control water erosion,
ments, average the annual soil loss the technician will develop alterna-
a c for the entire rotation or wheat- tives in accordance with the
fallow cropping system. This method Universal Soil Loss Equation for (1)
will show the benefits of residue length of slope (2) cropping
management for the entire cropping management factor and (3) erosion
system. If this method is used the control practice factor.
wind erosion curves will determine
the amount of residue needed but in
no case will the minimum requirement
be less than 500 lbs. per acre of
flat small grain stubble equivalent
at planting time.
TGN #178
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UNITED STATES DEPARTMENT OF AGRICULTURE Technical Guide
Soil Conservation Service Section IV
Colorado All Field Offices
March 1983
STANDARDS AND SPECIFICATION
CONSERVATION CROPPING SYSTEM (acre) 328
Definition Specifications
J
Growing crops by using a 1. Dry Cropland
combination of needed cultural and
management measures. Cropping a. A cropping sequence such
systems include rotations that as wheat-fallow, wheat-
contain grasses and legumes, as sorghum-fallow or other
3 ' well as rotations in which the systems will be applied
desired benefits are achieved that will provide adequate
_ without the use of such crops. residue for protection
from wind and water
Purpose ' erosion.
To improve or maintain good b. Crop residues will be
physical condition of the soil; managed in such a way that
protect the soil during periods soil loss is held to an
when erosion occurs; help control acceptable amount.
weeds, insects, and diseases; and
meet the need and desire of c. The Universal Soil-Loss
farmers for an economic return. Equation and Wind Erosion
Formula will be used to
v s Conditions where practice applies determine adequacy of the
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On all cropland and on certain
recreation and wildlife areas. 2. Irrigated Cropland
Planning Considerations a. The Soil Condition Rating
} Indices for Irrigated Crops,
` cc An application of nitrogen should Agronomy Technical Note #52,
≤ be considered in the early stages will be used to determine
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of a high residue management the adequacy of the cropping
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program to replace that tied up in sequence and soil fertility
the decomposition process. management.
TGN $nseb ei ®A
West Greeley Soil Conservation District
P.O. Box 86 - Greeley, Colorado 80632
RESOURCE OR LAND USE PLAN REVIEW
NAME: Paul Hnizdil
LEGAL DESCRIPTION: Section 24, T8N, R60W -- Section 25, T8N, R6OW
Section 19, T8N, R59W -- Section 30, T8N, R59W
DATE OF REVIEW: March 29, 1983
ACREAGE BY LAND USE: 385 ac. of grassland to be converted to non-irrigated
cropland
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D.‘ PLAN DISPOSITION: Approved
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COMMENTS:
West Greeley LLSoilConservation District Board
BY: 1.i.�Gs�rc, ✓J�r .ev ,v
CONSERVATION - DEVELOPMENT - SELF-GOVERNMENT •
l,0RKSIICET FOR DETERMINING INING A .)UACY
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or RESOURCE MANAGEMENT;SYSTEMS-
....•
• • DRY CROPLAND
Cooperator Paul Hnizdil Field Office G„pley - Date Mar. 30 1983
—
ldatcr Erosion Calculations
•
Erosion Factors -- USLE Optional
Soil
Field Land Soil
Number Use - • Loss Acres Loss
R K L S LS • C p Tons/AC - Tons per
Yr Field
__-
N-irr.
1 _ Croplan 55 .20 200 3 '.35 .36 1.0 1.4 __-N-irr.r - — -
_ 2 _._ Croplan 55 .24 200 6 .95 .36 .25 1.1 [ __A__ ^ _'
N..irr. _ _ —
-- 3 Cre lan 55 .20 150 3 .32 .14 1.0 0.5
l: -
�` = Wind Erosion Calculations I
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"'' ��^' --�— _-� Wind Ficl.d °"r1, Surface +•••ooth Surface r-�'
w =-' Field Land Soil �::� L'Lr�n_tr7
Erodibil.ity h ' li:'zcd- -PlannedLrl -
's, Number Use Type Width lbs.:1M- small 1Js-flat small soil
Soilt.o :
L ri grain stubble Crain stu?>*lc fcrc,/e.c
~` Laj _ Group__ or equivalent or equiv�.lrnt
L L1 N-irr. Olney '3
re•
Lu 1 Croplan FSL I 42. 86 660 ft. 1100 lbs. 1400 lbs. 3.5
w .�.
tin °� N-irr. Renohill -3 +
i'4 2 Croplan FSL I = 86 660 ft. 1100 lbs. 1400 lbs. 3.5
�- N-.irr. Olney 3
'` 3 Croplan FSL -. I = 86 660 ft. 1100 lbs. 1400 lbs. 3.5
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CQMUENTS:
See planning considerations on back of pace
(›esiduc amounts at planting time. Technician Alan Forkey — •—
• �
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