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乐亭县地处冀东冬麦区的北部边缘,自八十年代以来,生产水平迅速提高,1991年单产闯过300公斤大关,跨进了高产阶段。生产的发展,对种植技术也提出了新的要求。探索与当前生产相适应的栽培技术,是进一步发展小麦生产的重大课题。现结合乐亭县十几年小麦生产的实践,就冀东冬麦区小麦产量再提高的技术对策,谈一些粗浅看法: 一、技术运用应遵循“一稳两增”的原则。即稳定穗数,增加粒数和粒重,以提高穗粒重为主攻目标。以增加穗数为中心的技术体系,对中、低产阶段产量的提高起到了关键性的作用。但进入高产阶段以后,原来的栽培技术体系与当前的生产条件及进一步增产的要求已很不适应。大播量、高群体栽培,产量结构不协调,造成小麦连年倒伏,产量
Laoting County is located on the northern fringe of Jidong Dongmai District. Since the 1980s, the production level has risen rapidly. In 1991, the yield hit 300kg mark and entered the high-yield stage. The development of production also puts forward new requirements on planting technology. Exploring cultivation techniques compatible with current production is a major issue for further development of wheat production. Now combined with the practice of more than 10 years of wheat production in Laoting County, some technical suggestions are put forward to further increase the output of wheat in the east winter wheat area. First, the application of technology should follow the principle of “one growth and two increases.” The number of stable spikes, increase grain number and grain weight, in order to improve grain weight as the main goal. The technical system centering on spike numbers has played a key role in improving the yield in the middle and low yield stages. However, after entering the high-yielding stage, the original cultivation technology system is not suitable for the current production conditions and the requirements for further production increase. Sowing volume, high population cultivation, uncoordinated yield structure, resulting in lodging of wheat year after year, yield