The transplanting area is 20x20 cm. and take 5-8 plants/time in order to get high amount of safe rice/area since salinity in soil prevents rice from growing. Keep the leavings to replace the died ones.
       7. Chemical fertilizer application. Since soil in the Northeast is sandy, the fertilizer should consist of Nitrogen, Phosphorus and Potassium. The suggested amount is 16-16-8 in the ratio of 30 kg./rai and divide it into 3 equal parts :
       Add the first part 7-10 days after transplantation.
       Add the second part in the high-tillering period.
       Add the third part when rice starts to have panicle.
       8. Maintenance  
              After transplanting, the rice's leaves become withered and blue. Some are rolled up. After a period of time, its leaves become brown. After transplanting a week , if its leave does not appear, it dies. Transplant new rice to replace the died ones and drain the water when it is pale brown and the rice leaves are burned.
       Rice can not bear salinity in soil in the period of transplanting and blooming.
       In blooming period, rice can not lack water. If it does, Salinity will increase, the rice seed is thin and rice production decreases. If rice lacks water, fill water in the field. Prevent rice's disease and kill insects until the harvest.
       9. Mulching
              After the harvest, do not leave the field empty because water evaporation will increase salinity in soil. Cover the soil with the mulch like rice straw, crop residue and husk to prevent the sunlight and decrease wate evaporation. When harvest the rice, tread on stubbles to cover soil. Incorporation the mulch in soil preparation period will add organic matter and improve soil properties.
     Saline soil management for crops planting
       After rice harvest in irrigated area or in area near water source, crops could be planted in saline soil area. Before planting, reclaim the soil as the following :
       1. Ploughing deeply. This method is suitable for soil hard to absorb water located among layers easy to absorb water. Ploughing deeply would leach salt from the plant's root. Plough as deep as 40-50 cm. and make the soil surface smooth.
       2. Shatter the below soil by ploughing roughly. Each plough pulled by the tractor should be far from each other 50-90 cm. to make the furrow for water absorption. 
      3. Chemical application. Mix gypsum with alkaline soil to decrease alkalinity. Calsium in gypsum will drive Sodium out of the soil. Then, apply water to leach Sodium from the area.
       4. Leaching salt from the soil to decrease salinity in soil. Apply water to leach salt and drain water out of the area without destroying the environment. Leaching the soil as the following :

      
       - Kill weeds in the soil.
       - Make the soil surface smooth.
       - Plough the soil deep more than 30 cm. Statter the below soil until the furror appears and make the soil surface smooth.
       - Divide the field into small plot (1-5 rai). Buil the dike around each plot.
       - Release water gradually 250-300 cubic meters/rai. Water will percolate through soil and leach salt to the below soil. Add water 250-300 cubic meters/rai after water percolation. Check the concentrated amount of the drained salt.
       5. Selection of salt tolerant plants. This method is effective, safe and available.

       Types of salt tolerant plants grown in different soil levels
       1. Plants grown in low-level saline soil
       Truck Crops : cowpea, lettuce, celery, pepper, melon, a large variety of cucumber.
       Flowers : gerbira
       Farm crops and forage : mung bean, soybean, peanut, princess bean, green pea
        Trees : avocado, banana, lichce, citron, orange, mango
       2. Plants grown in middle-level saline soil
       Truch crops : luffa, cauliflower, cabbage, garden pea, potato, bottle gourd, garlic, sweet corn, water melon, grape, parsley, pineapple
       Flowers : rose
       Farm crops and forage : rice, S. speciosa, ramic, genus Hibiscus, sunflower, corn, Indian mulberry, sorghum, cassava, cowpea, Jackbean
       3. Plants grown in high-level saline soil
       Truck crops : Boerhavia, turnips, tomato, cowpea, asparagus, genus Terminalia, acacia, basil
       Flowers : allamanda, globe amaranth, hibiscus, bougainvillaea
       Farm crops and forage : salt tolerant rice, sesbania rostrata, sweet potato, cotton
       Trees : genus cassia, guava, eucalyptus,cashew nut, genus Terminalia, otaheite goose-berry, mimusops, hibiscus, tamarind, coconut palm, date palm, pine,nim, camachile.