论文部分内容阅读
荔枝抽生带叶花穗后,由于幼叶营养生长旺盛,大量消耗树体养分,会导致花穗营养不良而退化,抗逆能力明显下降,并加重病虫危害,造成花而不实。必须及时采取下列技术措施进行补救,以提高花质,增强抗逆性,促进开花坐果,提高坐果率。 (一)及时处理嫩叶 荔枝抽生带叶花穗后,在嫩叶尚未展开时,树冠喷洒1次乙烯利水溶液,每15公斤清水加乙烯利15毫升,并加少量高锰酸钾同喷,以杀死嫩叶。也可以采用人工方法,从叶柄处将嫩叶摘去,控制其生
Litchi pumping leaf spike, due to vigorous vegetative growth of young leaves, a lot of consumption of tree nutrients, will lead to malnutrition and deterioration of flower spikes, significantly reduced the ability to resist, and aggravate the pests and diseases, resulting in flowers and false. We must promptly take the following technical measures to remedy, in order to improve the quality of flowers, enhance resistance, promote flowering and fruit set, improve the rate of fruit set. (A) timely treatment of young leaves litchi pumping leaves with spikes, in the young leaves have not yet started, the crown spray 1 ethephon water solution, plus 15 kg of water per 15 kg ethephon 15 ml, plus a small amount of potassium permanganate with the spray To kill young leaves. Artificial methods can also be used to remove the young leaves from the petioles to control their life