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1989～1990年度,我们在省农牧业厅的领导下,经地、市、乡、村农技干部和有关领导共同努力,在龙坪大树、五里两村连片示范种植小麦新品系“8143”1500亩。示范区全为棉麦两熟,小麦土地利用率平均为39.8％,在遭受多种自然灾害的情况下,仍获得了超历史的好收成。经有关专家对130个农户的实地验收,平均亩产267公斤,比当地同等生产条件下的B_(91)品种平均亩产提高39公斤,增长17.1％;比1989年当地平均亩产提高74公斤,增长38.3％;比当地历史最高年的1988年平均亩产提高24公斤,增长9.9％。其中还出现了不少如五里村文西组文尚珠2.7亩小麦地亩产312公斤的高产典型。 “8143”示范片在灾年能获得大面积高产,除与良种的丰产、抗病、抗逆的特性有关外,在技术措施上,我们主要作了以下三个方面的改进和提高。
From 1989 to 1990, under the leadership of the Provincial Department of Agriculture and Animal Husbandry, we worked together with relevant leaders of agricultural science and technology cadres at local, municipal, township and village levels to display new wheat lines planted in Dali Shumin and Wuliri villages in Longping “8143” 1500 acres. The demonstration area is entirely cotton and wheat two crops. The average land use efficiency of wheat is 39.8%. In the case of various natural disasters, it still obtained a good harvest of the past. The average output of 267 kilograms per mu of 130 peasants obtained by relevant experts was 39 kilograms, an increase of 17.1% over the average yield of B 91 cultivated under the same local production conditions, an increase of 74 kilograms more than the average yield per mu in 1989 An increase of 38.3% over the previous year; the average yield per mu in 1988, up from the highest level in the history of the region, was 24kg, an increase of 9.9%. There are also many such as Wuli Village Wensi Wen Wenzhu 2.7 acres of wheat yield 312 kg of high-yield typical. In addition to the high-yielding, disease-resistant and anti-retrogradation characteristics of the elite species, the “8143” demonstration project has been able to achieve large-scale and high-yielding projects in the disaster years. In terms of technical measures, we mainly made the following improvements and improvements in the following three aspects.