关键词: 玉米, 玉米, 蛋白质, 有机肥, 氮, 磷, 钾, 种植密度, 五元二次正交旋转组合设计

Abstract: Tobacco is one of the most important economic crops in our country, its area and yield ranks first in the world, and fertigation is an important practice measure of modern agriculture, however, the application of fertigation in tobacco farmland has just started. To well develop and apply the fertigation in Sichuan tobacco farmland, we collected and analyzed the literatures on fertigation in library of “China National Knowledge Infrastructure (CNKI)” and “Web of Science”, and found that: (1) literatures on “fertigation” speedily increased, especially in China, with annual increment of 50% in recent years, and “fertigation” were widely concerned in natural and social sciences, but were very few in tobacco farmland. (2) Presently, hardware technology of “fertigation” is both practical and reliable, but that with low cost, as well as suitable for the mountain region and land where is lack of water resource and power, and for the household contract system, is apparently absent. (3)Application of “fertigation” in different regions and different crops received substantially economic and ecological efficiency. However, studies on regulation parameters of “fertigation” suitable for various regions and crops, and on water soluble fertilizer is obviously insufficient. Based on the above knowledge and characteristics of Sichuan tobacco farmland, we put forward the concrete proposals on three aspects of “fertigation”: basic research, approaches development and production practice.