Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (15): 202-210.doi: 10.11924/j.issn.1000-6850.casb14120205

Previous Articles     Next Articles

Study on Nutrient Elements Content of Leaf and Orchards Soil in different-aged Badam and Different Texture Soils

  

  • Received:2014-12-30 Revised:2015-01-23 Accepted:2015-02-09 Online:2015-06-02 Published:2015-06-02

Abstract: In order to study soil and leaf nutrient status of badam (Amygdalus communis L.) under different types of soil texture in Shache County of Xinjiang, which is the main area for badam cultivation, the author took sapling and productive age badam grove under sandy soil and loam soil as study objects, measured nutrient status of leaf and soil (0-20 cm and 20-50 cm), analyzed the soil fertility condition and mineral elements fertility demand model under different soil textures, developmental stages and growth periods. The results showed that the supply level of soil alkali-hydrolyzable nitrogen, available phosphorus and organic matter were relatively low in sandy soil, the supply level of available potassium, available sulfur and calcium were relatively high, soil magnesium content was moderate. Soil organic matter was deficient in loam soil, the levelof available phosphorus, available potassium, available sulfur, calcium and magnesium were relatively high, soil zinc was deficient in loam soil. The contents of total nitrogen, available phosphorus, magnesium, copper and iron in loam soil were higher than those in sandy soil, copper, zinc, iron and manganese in sandy soil were deficient, the effect of badam in different developmental stages on soil nutrient content was almost the same. The nutrient elements content variation trend of different age leaves in leaf expansion period- fruit enlargement period- harvest period was almost the same; the main absorption stage of major elements was fruit enlargement and harvest period; leaf- expansion period mainly absorbed total nitrogen, available potassium, and expanding period mainly absorbed available nitrogen and organic matter. The absorption of microelement was mainly in the harvest period, and the absorbed elements were mainly iron and manganese, followed by zinc; the expanding stage mainly absorbed boron, and the absorptions of other microelement were less. Based on the principle of balanced fertilization, we could conclude that during badam fruit enlargement period and hardcore period, it is suitable to give nitrogenous fertilizer and phosphate fertilizer, while potassium fertilizer should be given in hardcore period mainly. Microelement fertilizer should be added appropriately, and after harvest or at the beginning of the second year, enough organic fertilizer and nitrogen fertilizer should be applied.