Plant sweet potatoes:Sweet potatoes suitable for many soil types have thick ground floor, the motor component meat sand to clay. Too much soil or clay soil has many rocks and not consistent with ... the land must not be attenuated.Group of varieties of sweet potato tuber yield fresh high, cold-resistant, short on, appropriate service, consisting of K1, K2, K3, K4, K7, K8, VX37-1 ... Sweet potato varieties for high-yielding, delicious qualities such as Huang, KB1, natural ...Fruit color:Vegetables can generally good growing soil types have different mechanical components, but the best land with the motor components of meat, mild and less tart motorized land. Ground floor at least depth is greater than 0, 6 m. Vegetable coloring trees require flat and well drained. Vegetable crops include appropriate color peppers, melons, vegetables ...The varieties of plants for solid gold compromised saltyRice plantsApply the rice varieties are resistant to salty like the BT7, PC6, T10, M6 ... BT7 rice varieties were imported from China in the Pacific since spring 1992. Varieties of rice can be implanted in two BT7 years for the quality of the rice granules. Spend spring 120-125 days and 110-115-day season. Spring productivity reaches 55-57/ha.PC6 rice varieties are the Institute of food crops and food crops selectively from complex back/N202 DT122, pure high quality rice varieties are capable of adaptation. Spend spring 120-125 days and 90-95 days. Spring productivity reaches 65-70 Quintal/ha and crop reached 60-65/ha. PC6 malaria-resistant rice varieties, rather salty and infected at least dump against the blast, good rice quality.Rice varieties by the Institute of Agricultural Sciences T10 select Create from the complex DT10/Amber 33, recognized production from spring 2009. Growth spring time 135-140 days and 105-110-day season. Average yield 50-60/ha, high intensive 65-75/ha. Light blast infection, dryness, blight infection averages for 9 season lighter and more durable BT7), resistance to malaria-resistant and quite. pourVarieties of rice domestication M6 was put into production in 2005 with a growth period of spring 170-180 days, growing season 125-130 days; height 100-105 cm; Salt-resistant 2-3% for productivity 50-55/ha, where for lighter salty productivity 55-60/ha (equivalent to the same Elected Haiphong). Just like N6 are resistant to salt and alum pretty, good anti malaria poured on average; less infected pests.Plain DdB6 chua-resistant rice varieties fairly salty: spend spring 135-140 days and season on 115-110. The average yield of spring 60-70/ha, season 50-60/ha; capable of high intensive.From the same See elected (Haiphong) caused mutations and create the same CM1 and CM5 is the breed was created for the salty, rich has combined the characteristics of salt-resistant, high-yielding and disease resistance, able to substitute for the rice yield is lower in salt-rich.In the agricultural sector program support (ASPS) in 2007, the seed component, the Ministry of agriculture and rural development has announced 152 rice varieties are recognized within 20 years (1984-2004), of which there are many breed was recognized for high quality yield in salty soil environment. In it, the varieties of rice on the ground substance rich salty Red River Delta include IR17494, N13, A20, DT10, DT11, Eight Xoan Pacific, Eight No. 1 (South Holland), Cloves, X 21, Lai DT33 (selection from the local Shrimp-like Hai Phong), CM1, DT16, Viet Lai 20, LC93-1, RTV, CT16.The solution the reasonable land use layout Rational land useAdjust the structure of agricultural land use on the basis of potential advantages, as well as the limitations of each of the factors:-Solid gold: coastal aquaculture development (putting soil beach along rivers flood low-lying land, coastal rice, plant every other year to aquaculture products such as shrimp, crabs and fish), planted mangrove forest...;-Solid gold sunken flood: the direction room of rice-aquaculture (fruit trees), aquaculture; -Rich coastal municipalities: development of rice, vegetables and industrial crops, food coloring on short, mulberry Beach waterfront development, fruit trees;-Solid gold selling paint, high limit factors difficult to irrigate: grow fruit trees, perennial industrial crops, vegetables, coloration of food, industrial forest plantation development, short on.Transfer of part of the land-rich high are rice often lack water to vegetables crops, industrial crops and short on fruit trees.Converted rice in salty area heavily to aquaculture brackish salt hotel. Depending on the level of and the time appears the salinity that appropriate land use layout under the following circumstances:-Salinity < 4 0/00, salty time < 3: rice and flowers coloring-Salinity > 4-8 0/00, salty < time 6 months: rice-aquaculture;-Salinity > 8 0/00, salty time > 6 months: aquaculture, the cultivation of conversion factors in the Red River Delta of the planning and design of efficient agriculture, some models convert as follows:Conversion models from 2 to fail rice-fish1,2,3 pattern was changed from 2 to fail, fish stocking fish-rice at Thai Thuy district, Thai Binh Province: old cultivation methods on soil contaminated with salty for many years, but due to the influence of regular saline intrusion, varieties of rice are not good for productivity and low economic efficiency. Evaluation results showed that the conversion of the plant were for higher economic efficiency compared to the old farming methods from 6-7 times Table 6.14. Compare the economic performance of the plant crop on soil contaminated with salty Swiss-Thai Pacific
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