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What factors affect soil hydration and crop growth time? What is the most efficient layout of dirt and water to grow crops?

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    I had to upvote just so that your rep was no longer on 666 - evil! – Jasarien Dec 10 '10 at 15:37
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    It would be good to have an update of these answers (or a new one) that also considers using water to harvest the wheat and seeds. – Matt May 6 '11 at 14:46
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Like Brant said, tilled soil will stay tilled if it has a water tile four blocks or less away. Even though a large field of crops would result in the quickest growth time, this is not necessarily the most efficient method of farming as you would need to crouch to avoid the trampling of crops, and it's not easy to access each tile.

There is a thread on the Minecraft Forums with various farm designs - here are two of them (credit to Hans Lemurson of the forums):

alt text

The tilled blocks are raised so you won't trample crops as you collect them, and the water tile in the middle ensures that all the crops are exposed to the water. The nice thing about this design is that you can elongate the design simply by repeating the middle row (the one with water in it). The walls of the farm serve a double purpose - keeping animals out and serving as a back wall so that harvest crops bounce back to you.

(Oh, and the chest at the door is good for storing excess seeds or wheat.)


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This is a spiralled variation of the farm. The crops are one continuous "shelf", so can hold the mouse button and move as you are planting or harvesting.

  • I like the 2nd version, except I extend the spiral out into loong rows, and every so often add a connector walkway between rows – elwyn May 3 '11 at 9:55
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    This is now slightly out of date: you can no longer trample crops just by walking through them normally (only by jumping or falling onto a tilled tile), making this layout fairly redundant. – Robotnik Oct 13 '15 at 2:34
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To be hydrated, tilled soil needs have water up to four blocks away, either on the same level as the soil or one level above it. This means a 9x9 field with a single block of water in the middle will be fully hydrated.

Growth time is a little bit more complicated. The Minecraft wiki has more information including the formula the game uses to determine growth rate, but it would seem that the quickest-growing crops are those surrounded by crops on either two sides. In other words, plant in straight lines. Avoid large fields and L shapes. If using large fields then alternate crops every row.

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A single block of water will manage to hydrate a 9×9 square on the same y-axis height around it, giving a total of up to 80 blocks hydrated.

A freshly tilled farmland block will get randomly hydrated when near a water block. Flowing water will also manage to hydrate surrounding blocks.

If the water source is removed, the farmland will randomly dehydrate and then get reverted to a dirt block. A dehydrated farmland block with crops planted will not get reverted; the crop planted will continue to grow at a decreased rate.

hydration mechanics

This design is effective since crops will get trampled only by jumping on them. In order to prevent drops falling into the water, a lily pad can be made use of:

lily pad

Water will still provide hydration to farmland, even if apart:

hydration mechanics

Crops also will not grow at light levels of 7 or lower, making them not grow at night if not near a light source. Additionally, at light levels of 4 and lower, crops will un-plant themselves. This, in practice, means that when not lit up, one's crops will not grow half the time. To fix this, just place a light source above each lily pad. Note that this light layout will not cover the 4 corner blocks.

light sourcing

cheap light sourcing

This design can be stacked up, on the screenshot you can see 9 water blocks hydrating 720 blocks of farmland:

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The same design can be modified for use in automatically harvested farms. An example is shown below.

enter image description here

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enter image description here To prevent animals from getting in, you can put a fence around it, and put torches on the fence corners to solve the problem of the light source not covering the corners. Especially if you are doing all the crops connected together like I have in this image, it works very well.

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Water will fertilize soil up to five blocks away. As such, the best pattern is one block of water surrounded by 5 blocks of dirt. You can make more of these to increase output.

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