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A controlled-release fertiliser (CRF) is a granulated fertiliser that releases nutrients gradually into the soil (i.e., with a controlled release period). [2] Controlled-release fertilizer is also known as controlled-availability fertilizer, delayed-release fertilizer, metered-release fertilizer, or slow-acting fertilizer.
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Fertilizers are usually labeled with three numbers, as in 18-20-10, indicating the relative content of the primary macronutrients nitrogen (N), phosphorus (P), and potassium (K), respectively. More precisely, the first number ("N value") is the percentage of elemental nitrogen by weight in the fertilizer; that is, the mass fraction of nitrogen ...
Usually, the fertilizer recommendations are as same as continuous flooding method. Application of nitrogen fertilizer is preferable on dry soil just before re-irrigation. To ensure a similar dry or wet condition throughout the crop field, which is essential to maintain good yield, it is important to level the rice field properly.
Of course, the more Fertilizer you use, the faster you'll master crops, so make sure to build your Fertilizer Bin and start putting it to good use as fast as you can. Play FarmVille 2 on Zynga.com ...
7:12 a.m. ET: Thompson was taken to Mt. Sinai Hospital, where he was pronounced dead. Fake New Jersey ID Mangione's week on the run came to an ignominious end at a McDonald's in Altoona on Dec. 9.
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These include: O 2 and CO 2 (mainly from the air via leaves) and H 2 O, NO − 3, H 2 PO − 4 and SO 2− 4 (mainly from the soil water via roots). Plants produce oxygen gas (O 2) along with glucose during photosynthesis but then require O 2 to undergo aerobic cellular respiration and break down this glucose to produce ATP.