In a given farming system, the slope length is 300 feet with a 4% slope. What is

Question

In a given farming system, the slope length is 300 feet with a 4% slope. What is the P factor for the following:

a. Uphill and downhill farming

b. Contour farming

c. Strip cropping

d. Terrace with graded channel outlet

e. Terrace with underground outlet

TABLE7.1 Conscrvation Practice Factor P for the Universal Soil Loss Equation Farming Up and Down Slope For Contour Farming Maximem Slope Length (et) P Factors Land Stope Maximm Sirif percent) Contouring Strip Cropping Width (fet) ContourStrip Crop 1 to 2 to 5 6 to 8 9 to 12 13 to 16 17 to 20 21 to 25 130 100 100 80 80 60 50 0.6 0.5 0.5 0.6 0.7 0.8 Too st 0.3 0.25 0.25 0.3 0.35 0.4 0.45 800 600 240 160 120 100 120 80 Use revised LS factor Same Pas contouring factor Contour P factor X 0.2 Contour P factor X 0.1 For lerraces Loss from crop Loss from terrace with graded channel outlet Loss from terrace with underground outlet ouro: Based on Wischmeier and Smith (1978)

Explanation / Answer

Conservation practice factor "P" is used in Universal Soil Loss Equation (USLE) and this USLE is governed by different factors which include

Conservation practice factor refers to various practices which included icontouring, strip cropping (alternate crops on a given slope established on the contour), and terracing.

Given the slope length is 300 feet with a 4% slope, seeing table 7.1

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.