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一、高密化控制栽培为提高单位面积内的株数和穗数,在原单位面积保苗的基础上,再加密20—30%,每公顷保苗株数6—7万株,产量可达1.2—1.3万公斤。由于密度的加大,势必影响田间的通风透光条件,造成一定的秃尖、空秆、倒伏。为解决好这一问题,应在加大肥料投入和利用高产耐密品种的基础上,采取以下化控措施:
First, the density control cultivation In order to improve the number of plants per unit area and the number of spikes in the original unit area seedlings, based on the re-encryption 20-30%, the number of seedlings per hectare 6-7 million strains, the output of up to 1.2-1.3 million kg . As the density increases, it is bound to affect the field of ventilation and light conditions, resulting in a certain bald tip, empty stalks, lodging. In order to solve this problem, we should take the following chemical control measures on the basis of increasing fertilizer inputs and utilizing high-yield and tight-tolerance varieties: