论文部分内容阅读
一、目的:小麦63号是我州将大量推广的品种,探讨它的氮磷供求问题,不论从当前生产实践的需要或是探索小麦亩产超千斤的目标来说,都是有它的积极意义的。一九七二年我们着重对拔节期以后的氮磷供求状况,作了初步观察,以期揭示其内在矛盾,为当前生产及制定亩产突破千斤措施提供一定的依据。二,方法:将小麦63号栽培在两种不同类型的土壤上进行观察,即油沙土:定于乐和生产队大田,代号乐3;红泥田:定于本所试验场南、北坝各两丘大田,代号2—5。各丘大田分别设观察取样区零点二亩,在各主要生育期取样一次,每次取样十六个点,
First, the purpose: Wheat 63 is a large number of varieties to be popularized in our state to explore its supply and demand of nitrogen and phosphorus, both from the current production practice needs or explore the goal of wheat per kilogram overweight, it has its positive meaningful. In 1972, we focused our preliminary observations on the supply and demand of nitrogen and phosphorus after the jointing stage in order to reveal their inherent contradictions and provide some evidences for the current production and formulate a breakthrough in per-mu yield. Second, the method: the wheat 63 cultivated in two different types of soil for observation, that is, oil sand soil: Ding Yu and production team Daejeon, code-named 3; red mud field: scheduled for our test site South, North Dam Two hill fields, code 2-5. Each hill and field were set to observe the sampling area of 0.2 acres, sampling in the main growth period, each sampling of 16 points,