Key Check 2. No high and low soil spots after final leveling.

 Importance. A properly leveled field allows for more uniform water distribution, requires less water to fill up, reduces weed incidence, and better management of golden apple snails. It helps achieve a uniform crop stand and maturity.

Assessment of Key Check. During land leveling, the field should have 2-5 cm water depth, about the height of a thumb. The field should have no visible mound of soil above the water surface after the final leveling.

Recommendations to achieve Key Check:

• Plowing.  Plow under weeds and stubbles 10 to 15 cm deep 3 to 4 weeks before transplanting or direct wet seeding to allow decomposition and recycle plant nutrients. If organic materials are not fully decomposed, soil tends to become acidic and some nutrients become less available. Draining removes toxic substances, allows organic matter to decompose, and helps the plant produce deeper and stronger roots. Decomposition is faster in moist soil.

• Clean and repair dikes and ditches. Dikes must be cleaned to remove pest; compacted to prevent seepage, and properly maintained 15 cm high x 20 cm wide to prevent rat burrowing. Ditches will ensure even water distribution and drainage.
  

• Harrowing. Harrow the field at least twice at one week interval. The first harrowing is done a week after plowing to break the clods and incorporate the stubbles. This allows drop seeds and weed seeds to germinate. The second harrowing, which is also the first leveling, should be done across the direction of the first harrowing. This further incorporates the volunteer plants and allows the germination of the remaining drop seeds and weed seeds. These practices help reduce the initial pest host population and maintain the hardpan.

• Level the field. Use a wooden plank or leveler.

• Construct canalets. For direct wet-seeded rice (DWSR), construct canalets near the levee surrounding the field and in the middle of the field as paths for excess water, and collecting golden apple snails.
  
  

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written by JoshGenX , March 05, 2010

ito po yung number ng pinoy farmers' text center natin 09209111398 para sa katanungan nyo sa pagpapalayan.

pwede rin kayong magpost ng inyong katanungan sa http://palaychikahan.ning.com para mapagusapan natin po.

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written by gY20HANNAH , February 18, 2010

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