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育苗移栽是稻作的传统栽培特点。利用苗床植株集中、地面积小的方便条件,使秧苗富锌,提高秧苗素质,在移裁于有效锌含量较低的本田后,仍不致因土壤缺锌而影响返青、分蘖,从而获得较高产量,是我们近年来研究苗期施锌技术的目的之一。如何使秧苗达到最适富锌程度,则是这一技术的关键所在和探讨的一个重要方面。一、材料与方法供试品种“秋光”。苗床修整后,先施氮、磷肥料,搅入土中,再将不同剂量的锌肥(ZnSO_4·7H_2O)分别混土均匀撒于床面,并搅拌混入表土中,然后播种、覆土(约1厘米厚)。锌肥的剂量范围为0～70克/米~2,每处理重复三次。 4月10日播种,插秧前(5月17日)进行秧苗生长调查和采样分析。插秧时把每种剂量的秧苗按顺序排列插在地力均匀的试验田,小区面积100米~2。秋后实收称重计产。试验地土壤存水整前采样分析结果是:水林土所郭雷、于学敏、梁伟等参加分析工作。
Seedling transplanting is the traditional cultivation characteristics of rice. Use of seedbed concentration of plants, the small area of convenient conditions, the seedling zinc, improve the quality of seedlings in the cut in the lower effective zinc content of Honda, the soil will not be affected by lack of zinc turning green, tillering, resulting in higher Yield, is our research in recent years, one of the purposes of zinc technology at seedling stage. How to make the seedlings reach the optimum level of zinc enrichment is an important aspect of this technology and an important aspect to explore. First, materials and methods for the test varieties “autumn light.” After the seedbed has been trimmed, nitrogen and phosphorus fertilizer are first applied to the soil, and different amounts of zinc fertilizer (ZnSO 4 · 7H 2 O) are uniformly mixed on the bed surface and mixed into the top soil with stirring, then sown and covered with soil (about 1 cm thick). Zinc fertilizer dose range of 0 to 70 g / m ~ 2, each treatment repeated three times. April 10 planting, transplanting before (May 17) for seedling growth survey and sampling analysis. When transplanting seedlings of each dose in order to insert the ground in a uniform test field, the plot area of 100 meters ~ 2. Autumn received real weight meter production. The result of pre-sampling analysis of soil water storage in experimental site was that Guo Lin, Yu Xuemin and Liang Wei participated in the analysis.