Huỳnh Văn Kéo, Trương Văn Lung, Nguyễn Quang Phổ (111-115) Từ khoá:  đặc điểm, đất, hoàng đàn giả, Vườn quốc gia Bạch Mã   Summary Some soil properties under dacrydium elatum wallich forest in Bach Ma national Park Dacrydium elatum lives at areas where has high humidity, not much acid, rich humus in the surface …

Nguyễn Thị Lẫm (trang 107-110) Từ khoá:  biện pháp, thâm canh, năng suất, lúa, đất đồi núi   Summary Research results – some intensive cultivation practices of rainfed rice for sustainable development in hilly-mountainous areas Results of some intensive measures on upland rice in the NMR. In the NMR upland rice areas remain 440.000 ha. …

Lê Văn Tiềm (trang 103-106) Từ khoá:  canxi, canxi trao đổi, canh tác, đất, miền núi   Summary Exchangeable calcium in soil and the options of land use in mountainous areas conclusion Exch. Ca is less mobile than exch. K, less leaches than K and more convenient for fertility evaluation of upland. Amount of exch. …

Cheang Hong, Nguyễn Đình Mạnh (trang 98-102) Từ khoá:  ảnh hưởng, phân bón, tưới, hàm lượng, kim loại nặng, Pb, Cd, Hg, rau cải xanh, Brassica juncea L.)   Summary The influence of fertilizers and irrigation water to heavy metals in the Chinese mustard plants 2 years study in green house was performed. Rate of …

Phạm Ngọc Chánh, Đỗ Ánh (trang 96-97) Từ khoá:  hiệu lực, phân bón, phân tổng hợp, S289, lạc   Effect of complex fertilizer S289 on groundnut

Trình Công Tư, Phan Sơn Hải (trang 93-95) Từ khoá:  phân tích, hàm lượng, kali, đất, đo phóng xạ, phóng xạ gamma   Summary Analyzing potassium content in soil by measure of natural gamma radio-activity of 40K Results: output from analyzing potassium content in soil by measure of natural gamma radio-activity was as 2.7-10.4 times …

Võ Thị Gương, Đỗ Thị Xuân (trang 86-92) Từ khoá:  khoáng hoá, đạm, đất, ao, nuôi artemia, artemia, Vĩnh Châu, Sóc Trăng   Summary Nitrogen mineralization in Artemia ponds Big constraint of reducing cyst yield of artemia cultivation on saline soil areas. Hypotheses of this problem is N mineralization of soil ponds, releasing N available …

Nguyễn Bảo Vệ (trang 78-85, 92) Từ khoá:  khoáng hoá, đạm, đất, lúa, Đồng bằng sông Cửu Long   Summary Nitrogen mineralization capacity of some rice soils in the Me Kong delta Soil samples were dried and ground through 2mm sieve and incubated under anaerobic and aerobic condition for 84 days and 3 days, respectively. …

Phạm Quang Hà (trang 71-77) Từ khoá:  hàm lượng, kẽm, đất, ô nhiễm Summary A study of Zinc content in some main soils of Vietnam and warning of soil Zn contamination in peri-urban areas Average content of  Zn about 32, 83 mg Zn/kg soils respectively for acrisols and for fluvisols.  Zn content in ferrasols was …

Lê Quang Trí, Văn Phạm Đăng Trí (trang 56-70) Từ khoá:  chọn lọc, phương pháp, đánh giá đất, Trung Hiếu, Vĩnh Long   Summary Alternatives of multi-criteria evaluation of land in Trung Hieu commune, Vinh Long province 6 land use types were selected. 4 criteria were determined. 4 multicriteria evaluation methods were used. Results of …