CN101243789A

CN101243789A - Weeding method in lotus rhizome farmland

Info

Publication number: CN101243789A
Application number: CNA2008100471112A
Authority: CN
Inventors: 卢秀清
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-21
Filing date: 2008-03-21
Publication date: 2008-08-20

Abstract

The invention relates to a weeding method of lotus rhizome field, in particular to a weed-remove method of lotus rhizome field. 40 percent prometryn 65 to 70 g and 50 percent acetochlor 35 to 40 ml are used for one mou lotus field and then distributed in the position without young lotus after adding water 15 kg. The seeper and water keeping are carried out for 7 to 10 days. After application, the leaves of the Monochoria vaginalis become dark on the second day, the roots rot on the third day and the Monochoria vaginalis dies on the fifth day. The lichen, the barnyard grass, the deltoid grass, the chufa and the Eleocharis yokoscensis die on the third day, while the Marsilea quadrifolia dies on the fifth day. The Anabaena azollae and the Azolla die on the seventh day. All the weeds die after the seventh day and the lotus rhizome field if full with fertilizer and water. The invention is verified by about thousand mou lotus rhizome fields that the invention can remove the weed effectively without any toxic residue and harm to the lotus rhizome. The weeding method has an advantage of good economic and social benefits and is worth for popularity and use.

Description

Weeding method in lotus rhizome farmland

Technical field

The present invention relates to a kind of method of removing the lotus root field weed.

Background technology

Lotus rhizome is planted, generally at seedling-slowing stage, weeds in field just begins to sprout, the modal malignant weed of lotus root Tanaka has various broad-leaveds such as Monochoria vaginalis, four leaf duckweeds, red duckweed, duckweed, needle spikesedge herb, convexutricle sedge herb, barnyard grass grass, moss, water chestnut seedling and grassy weed etc., they and lotus rhizome are striven fertilizer, greatly influence the lotus rhizome seedling and early send out stable yields.Weeds are serious, only turn at last, plant other crop.So the lotus rhizome field weed is the most scabrous problem in the lotus rhizome production, in the past, the weeding of lotus root field was adopted artificial, inefficiency.

Summary of the invention

The objective of the invention is at above-mentioned present situation, aim to provide a kind of weeds of effectively going out, the Weeding method in lotus rhizome farmland of no residual hazard.

The implementation of the object of the invention is, Weeding method in lotus rhizome farmland, and one mu of lotus field restrains with 40% prometryn 65-70, and 50% Acetochlor 35-40ml converts water 15Kg, spreads fertilizer over the fields in no He Miaochu ponding 15-30cm, water conservation 7 days-10 days.

The applicant has done field investigation: a dispenser leaf one day after Monochoria vaginalis second darkness leaf wholeheartedly, and the 3rd day mashed root changed into the Heisui River death ray on the 5th day; Moss, barnyard grass grass, Mitsubishi's grass, water chestnut seedling, needle spikesedge herb death ray all about three days; Four leaf duckweeds are whole death rays about five days; Red duckweed, seven days whole death rays of duckweed.Field a slice dark reddish brown rich water after seven days, the fresh and alive weeds of none root.

In order to ensure the lotus rhizome seedling leaf be not subjected to slight injury, spread fertilizer over the fields second or the 3rd day, as the slight poisoning of spottiness, the growth later stage can recover voluntarily on the blade face, to not influence of output; As producing big poisoning, about three days, separate harmful agent 40 grams with the rich toxin expelling of hurricane for every mu and add wet 5ml, convert water 15Kg, before at 10 in the morning or after at 4 in afternoon, sparge above the lotus leaf, can recover life in three days.

From 2006-2007, the applicant adopts weeding of the present invention in thousands of mu of lotus root fields, all can effectively remove weeds, all less than the situation that bigger harm lotus rhizome growth occurs.The present invention weeds of effectively going out, no residual hazard has huge economic benefit and social benefit, and use is worth promoting.

Embodiment

One mu of lotus field of the present invention restrains with 65-70 with the 40% prometryn mu that Zhong Shan chemical industry Co., Ltd in Changxing, Zhejiang Province produces, 50% the Acetochlor 35-40 milliliter that Dalian Rui Ze insecticide factory produces, convert 15 liters in water, not having He Miaochu with thick water droplet at wide interline spreads fertilizer over the fields, ponding 15-30cm, water conservation 7 days-10 days.

Leaf after the dispenser Monochoria vaginalis second darkness leaf wholeheartedly, the 3rd day mashed root changed into the Heisui River death ray on the 5th day; Moss, barnyard grass grass, Mitsubishi's grass, water chestnut seedling, needle spikesedge herb, moss death ray all about three days; Four leaf duckweeds are whole death rays about five days; Red duckweed, seven days whole death rays of duckweed.Field a slice dark reddish brown rich water after seven days, the fresh and alive weeds of none root.

Kill Monochoria vaginalis, less than 3 cun, behind the full death ray of blade, basal part of stem can grow new adventive root again as if ponding.Thereby, want ponding 15-30cm at the field piece that Monochoria vaginalis is arranged, water conservation 7 days-10 days.

In order to ensure the lotus rhizome seedling leaf be not subjected to slight injury, spread fertilizer over the fields second or the 3rd day, as the slight poisoning of spottiness, the growth later stage can recover voluntarily on the blade face, to not influence of output; As producing big poisoning, about three days, separate harmful agent 40 grams with the rich toxin expelling of hurricane for every mu and add wet (100% the organosilicon that U.S. organosilicon Co., Ltd produces) 5ml, convert water 15Kg, before at 10 in the morning or after at 4 in afternoon, sparge above the lotus leaf, when walking in the field, requirement interlacing spraying is in order to avoid the soup on the water wave flush away blade.The spray medicine can recover life after three days.

Claims

1, Weeding method in lotus rhizome farmland is characterized in that one mu of lotus field restrains with 65-70 with 40% prometryn mu, and 50% Acetochlor 35-40ml converts water 15Kg, spreads fertilizer over the fields in no He Miaochu ponding 15-30cm, water conservation 7 days-10 days.