Turtle Carrot/Potato Farm

local function Plant()
    turtle.select(1)
    turtle.placeDown()
end

local function Till()
    turtle.digDown()
    turtle.placeDown()
end

local function Farm()
    turtle.digDown()
    turtle.suckDown()
    turtle.down()
    turtle.suck()
    turtle.turnLeft()
    turtle.suck()
    turtle.turnLeft()
    turtle.suck()
    turtle.turnLeft()
    turtle.suck()
    turtle.turnLeft()
    turtle.up()
    turtle.digDown()
    Plant()
end

local function Search()
success, data = turtle.inspectDown()
    if success == true then
        if data.metadata == 7 then
    Farm()
        end
        else Till()
    end
end

local function TurnRight()
    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
    Search()
end

local function TurnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
    Search()
end


local function ForwardRight()
    while turtle.detect() == false do
        turtle.forward()
        Search()
    end
        TurnRight()
end

local function ForwardLeft()
    while turtle.detect() == false do
        turtle.forward()
        Search()
    end
        TurnLeft()
end

local function DownBack()
    ForwardRight()
    ForwardLeft()
end

local function GoBack()
    while turtle.detect() == false do
        turtle.forward()
        Search()
    end
        turtle.turnRight()
        while turtle.detect() == false do
            turtle.forward()
        end
            turtle.turnLeft()
            turtle.forward()
            turtle.turnRight()
            turtle.select(1)
            turtle.dropDown()
        for a= 2, 16 do
        turtle.select(a)
        turtle.drop()
    end
    turtle.turnRight()
end

local function Setup()
    turtle.select(1)
    turtle.suckDown()
end



local function Core()
    Setup()
    DownBack()
    DownBack()
    DownBack()
    DownBack()
    DownBack()
    DownBack()
    DownBack()
    DownBack()
    ForwardRight()
    GoBack()
    sleep(1200)

end

n=0

while n==0 do
    Core()
end