CN104885823A

CN104885823A - Method for eliminating weeds in lotus root field

Info

Publication number: CN104885823A
Application number: CN201410074120.6A
Authority: CN
Inventors: 王志凤
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-03-03
Filing date: 2014-03-03
Publication date: 2015-09-09

Abstract

A method for eliminating weeds in a lotus root field is provided. The method is characterized in that: for one mu of the lotus root field, 65-70 g of 40% prometryn and 35-40 ml of 50% acetochlor are mixed with 15 kg of water, then the mixture is spread over parts, in which no lotus seedling exists, of the lotus root field; water is accumulated to the depth of 15-30 cm, and is maintained for 7-10 days.

Description

A kind of method removing lotus root field weed

Technical field

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

Background technology

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

Summary of the invention

The object of the invention is for above-mentioned present situation, aim to provide one and effectively to go out weeds, without the Weeding method in lotus rhizome farmland of residual hazard.

The implementation of the object of the invention is, Weeding method in lotus rhizome farmland, one mu of lotus field 40% prometryn 65-70 gram, and the Acetochlor 35-40ml of 50%, is watered 15Kg, spreads fertilizer over the fields in without 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, the 3rd day rotten, within the 5th day, change into Heisui River death ray; Moss, barnyard grass, Mitsubishi's grass, water chestnut seedling, needle spikesedge herb about three days all death rays; The whole death ray of four leaf duckweeds about five days; Red duckweed, duckweed seven days whole death rays.Field a slice dark reddish brown rich water after seven days, the fresh and alive weeds of none root.

In order to ensure lotus rhizome seedling leaf not by slight injury, spread fertilizer over the fields second or the 3rd day, poisoning as slight in spottiness on blade face, Later growth can recover voluntarily, does not affect output; As produced larger poisoning, about three days, every mu adds wet 5ml with the agent 40 grams of hurricane rich toxin expelling solution evil, is watered 15Kg, before at 10 in the morning or after at 4 in afternoon, sparges above lotus leaf, within three days, can recover life.

Several years, the applicant adopted weeding of the present invention in thousands of mu of lotus root fields, all effectively can remove weeds, did not all occur the situation of larger harm lotus rhizome growth.The present invention can effectively be gone out weeds, and without residual hazard, have huge economic benefit and social benefit, be worth promoting use.

Embodiment

The 40% prometryn mu 65-70 gram that the present invention one mu of lotus field produces with Changxing, Zhejiang Province Zhong Shan Chemical Co., Ltd., Dalian Rui Ze insecticide factory produce 50% Acetochlor 35-40 milliliter, be watered 15 liters, spread fertilizer over the fields without He Miaochu at wide interline with thick water droplet, ponding 15-30cm, water conservation 7 days-10 days.

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

Kill Monochoria vaginalis, if ponding is less than 3 cun, after the full death ray of blade, basal part of stem can grow new adventive root again.Thus, the field of Monochoria vaginalis is being had to want ponding 15-30cm, water conservation 7 days-10 days.

In order to ensure lotus rhizome seedling leaf not by slight injury, spread fertilizer over the fields second or the 3rd day, poisoning as slight in spottiness on blade face, Later growth can recover voluntarily, does not affect output; As produced larger poisoning, about three days, every mu with the agent 40 grams of hurricane rich toxin expelling solution evil add wet (organosilicon Co., Ltd of the U.S. produce 100% organosilicon) 5ml, be watered 15Kg, before at 10 in the morning or after at 4 in afternoon, sparge above lotus leaf, when walking in field, requirement interlacing is sprayed, in order to avoid water wave washes away the liquid on blade.Spray medicine can recover life after three days.

Claims

1. remove a method for lotus root field weed, it is characterized in that one mu of lotus field, 40% prometryn mu 65-70 gram, the Acetochlor 35-40ml of 50%, is watered 15Kg, spreads fertilizer over the fields in without He Miaochu, ponding 15-30cm, water conservation 7 days-10 days.