防治桃树的生理性落果

• 作 者: 吴泽全
• 机 构: 夹江县中学校生物组,
• 出 处: 四川农业科技
• 发表日期: 1986年01期
• 关键词: 长枝 自动脱落 小桃 子般 无机盐类 叶面积 大时 营养物质 根吸收 疏花

当小桃长到梅子般大时,常大批脱落,严重影响其产量。查其原因,它既不是虫伤造成,也不是病害引起,而是由于有机养料供应不上造成的生理性落果。这是因为上年桃树越冬贮藏的营养物质,经长叶、开花、长枝,大部分已耗完,而桃树此时生出的叶尚少,且没长成,叶面积小,制造积累的有机物质少,果树自动脱落部分果实,而保证另一部分果实更好地发育。桃树体内的有机养料,是叶利用根吸收的水和无机盐类,在阳光下进行光合

When the peach grow plum-like large, often shed in large numbers, seriously affecting its output. Check the reason, it is neither caused by insect damage, nor is it caused by disease, but because of organic nutrients supply is not caused by physiological drop fruit. This is because the perennial perennial nutrients stored by the long leaves, flowering, long branches, most of which have been depleted, while the peach tree at this time is still less, and no growth, leaf area, manufacturing accumulation Less organic matter, fruit trees automatically shed some fruit, while ensuring that the other part of the fruit better development. Peach organic nutrients in the body, is the use of leaves to absorb water and inorganic salts, sunlight in the photosynthesis