JP2009149590A - Controlling technology of bryophytes and algae jointly using iron compound and fertilizer component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology for controlling bryophytes and algae having trespassed on a lawn field and for simultaneously filling up a space formed in the lawn field. <P>SOLUTION: The controlling method of bryophytes and algae includes jointly using an iron compound and a fertilizer component containing a nitrogen compound. The controlling agent includes an iron compound and a fertilizer component containing a nitrogen compound. The controlling method of bryophytes and algae includes jointly using ferrous sulfate and a fertilizer component containing a nitrogen compound. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for controlling bryophytes and algae that have invaded lawn.

Golf course greens have increased bryophytes and algae due to restrictions on the use of highly toxic pesticides and the introduction of cultivation methods that reduce lawn cutting height. Lichens and algae have problems such as deteriorating the green landscape and worsening the putting quality. Currently, bryophytes and algae are dealt with by using a fungicide, a herbicide, an algicide and the like. However, continuous use over several months is required to control bryophytes and algae with high regeneration ability by using any of these methods.
Algae and Mosses on Greens. Golf Course Management. September 2000. Golf Course Superintendents Association of America. Patent Publication 11-106305

Among the recommended methods for controlling bryophytes and algae in the United States, a method using fertilizer for improving alkaline soil or iron sulfate used for improving the color of grass is shown in Japan. This method is widely used from home gardening to golf course as a stable bryophyte and algae control method.
Patent Publication 2007-037519 EPAR. E. D. FACTS. Iron Salts. EPA-738-F-93-002. February 1993. Jim Douglas, and Wayne Vandre. MOSS CONTROL IN LAWNS. HGA-00133. Alaska Cooperative Extension. University of Alaska Fairbanks

  The golf course green has the conditions that turf and algae are easy to grow because of strong cutting pressure and strict fertilization management. The gap created by removing moss and algae after spraying a control agent against the invading moss and algae into the increasing green of golf courses forms a suitable place for the regeneration of new bryophytes and algae Will require continuous use of the drug. On the other hand, the continuous use of chemicals reduces the growth of lawn, and the use of pesticides containing copper, which is effective for bryophytes and algae, has a great influence on environmental organisms, and there is a need to limit their use. Even in the control method using iron ions that are considered to be effective and safe, iron ions are fast-acting, but because of lack of residual effect, it takes time for the gaps generated after control to be filled with new turf, and bryophytes and algae There is a problem that allows the reoccurrence of In addition, iron ions also have a problem of temporarily darkening the lawn.

For bryophytes and algae, since the vascular system is not developed, even if the agent has osmotic transfer properties compared to higher plants, the contact effect is mainly, and it is difficult to kill the whole individual. Iron is an essential metal for living organisms that are universal and present in large quantities in the environment compared to heavy metals that are effective but have to be restricted from consideration for the environment. It is a highly safe metal that is widely used in places close to daily life, such as food additives and fertilizers, although it has the disadvantage that it changes relatively quickly. Moreover, although a lawn turns into dark green by an iron ion process, this change can be suppressed by using together plant essential metal ions other than iron, such as an alkali metal and an alkaline-earth metal.
Patent Publication 2006-206560

  Therefore, in order to promptly fill the gaps where moss and algae are inhabited with grass, and at the same time to suppress the darkening of the grass and promote healthy growth, these plant essential metals and others that promote growth It is important to use the fertilizer component in combination. Nitrogen compounds are particularly effective. On the other hand, since the phosphate compound may react with iron ions to form poorly soluble iron phosphate and reduce the effect, attention must be paid to the amount and ratio of use.

  It is known that iron used for controlling bryophytes and algae may be ferrous ions or ferric ions. As the inorganic compound salt for supplying iron ions, any of sulfates, nitrates, hydrochlorides and the like having high water solubility can be used. In particular, ferrous sulfate, ferric sulfate, ferric chloride, ferric nitrate, ferric pyrophosphate and their hydrates, which are widely used in our living sphere as food additives, etc. Is suitable. In particular, ferrous sulfate hydrate is superior in that the pH after dissolution is as high as 3-4 compared to ferric sulfate and the like, and it hardly corrodes the metals that are commonly used in spraying equipment. Yes.

  As the nitrogen compound, ammonium sulfate, ammonium nitrate, potassium nitrate, sodium nitrate, urea and the like used as a fast-acting fertilizer component can be used. However, it should be noted that when a basic compound such as ammonia or urea is mixed and dissolved with iron ions, iron hydroxide having low water solubility is produced and the effect is lowered.

  Plant essential metal ion sources include, for example, potassium sulfate, potassium hydrogen sulfate, potassium hydrogen pyrosulfate, potassium chloride, potassium nitrate, calcium sulfate, calcium chloride, calcium nitrate, magnesium sulfate, magnesium hydrogen sulfate, magnesium chloride, magnesium nitrate, sulfuric acid Highly water-soluble strong acid salts such as manganese, copper sulfate, and zinc sulfate are desirable. On the other hand, phosphates and salts of weak acids need to be noted because iron salts with low water solubility are produced depending on conditions and the effect is reduced.

  For the control of bryophytes and algae, 2 g or more of iron ions are required per square meter, and 4 g or more is desirable when controlling at one time. On the other hand, since a large amount of iron ion treatment suppresses the growth of lawn, it is desired that the total amount used in one season be 10 g or less.

  Although the amount of nitrogen components at the time of treatment varies depending on the state of fertilization management, 0.1 g to 1 g per square meter is appropriate as nitrogen.

  The concentration of plant essential metal ions with respect to iron ions during treatment varies depending on the metal ions to be applied, but is approximately 1% to 20%.

  In use, each of the iron salt and the fertilizer component can be dissolved and processed simultaneously when necessary, or separately at a short time. Further, it is possible to use a mixture of a solid iron salt and a fertilizer component dissolved at the time of use, or a mixture obtained by mixing and dissolving a fertilizer component that does not cause crystal precipitation in a ferric sulfate solution or the like.

  In order to control underdeveloped bryophytes and algae in the vascular system, a spray water amount of 100 to 1000 ml per square meter is desirable in order to eliminate spray unevenness and increase permeability.

  Combining fertilizer components containing iron ions and nitrogen compounds enables quicker control of bryophytes and algae and restoration of lawns.

  By mixing and preparing fertilizer compounds containing iron salt and nitrogen component, it is easy and enables processing with few errors during use.

  Provided is a technique for controlling bryophytes and algae using iron ions that do not cause metal corrosion in a spraying device by using a fertilizer component containing ferrous sulfate and a nitrogen compound.

(Pharmaceutical preparation example 1)
Ferrous sulfate monohydrate (product of FeSO ₄ · H ₂ O Fuji Titanium Co., Ltd.), sodium sulfate (Na ₂ SO ₄ Wako Pure Chemical Industries, Ltd.), potassium sulfate (K ₂ SO ₄ Wako Pure Chemical Industries, Ltd.) Products), potassium chloride (KCl Wako Pure Chemical Industries, Ltd.), potassium nitrate (KNO ₃ Wako Pure Chemical Industries, Ltd.), potassium hydrogen phosphite (KH ₂ PO ₃ Daido Pharmaceutical Co., Ltd.), Cali Akira (KAl (SO ₄ ) ₂ Wako Pure Chemical Industries, Ltd.), Magnesium sulfate heptahydrate (MgSO ₄ · 7H ₂ O Wako Pure Chemical Industries, Ltd.), Calcium sulfate dihydrate (CaSO ₄ · 2H ₂ O Kishida Chemical Co., Ltd.), and ammonium sulfate ((NH ₄ ) ₂ SO ₄ Wako Pure Chemical Industries, Ltd. product), the ratio shown in Table 1 below as one point or two points And mixed. Since the mixture of KH ₂ PO ₃ was consolidated, it was pulverized in a mortar.

  On August 30, 2007, 15 g each of the drug based on Drug Preparation Example 1 per square meter and sulfuric acid as a control for Bentum genoke (Bryum argenteum) generated in the bentgrass of Ryugasaki Country Club in Ryugasaki City, Ibaraki Prefecture 12 g of ferrous monohydrate was dissolved or suspended in 500 ml of water and sprayed using an electric sprayer (manufactured by Maruyama Seisakusho). The area of 1 ward was 2 repetitions of 0.5 square meters. After 4 days, 2 weeks and 4 weeks, the degree of control of Gingoke after 2 weeks, the degree of lawn greening after 2 weeks, and the degree of lawn bud clogging after control of Ginkgo after 4 weeks from 0 (no change) to 3 ( It was investigated in three stages (almost bud clogging). Fertilization was not performed during the test period, and trimming was performed every 1 to 2 days. About 90% or more of the individuals before treatment were withered ◎, about 60% to 90% withered ○, about 30% to 60% withered Δ, and almost no effect was observed. The results are shown in Table 2 below.

(Pharmaceutical preparation example 2)
Ferrous sulfate monohydrate, potassium sulfate, potassium hydrogen sulfate (KHSO ₄ Kishida Chemical Co., Ltd.), potassium nitrate, magnesium sulfate heptahydrate, calcium sulfate dihydrate, manganese sulfate pentahydrate (MnSO ₄ · _5H 2 O Wako Pure Chemical Industries, Ltd. product), sodium borate decahydrate _{(Na 2 B 4 O 7 ·} 10H 2 O Wako Pure Chemical Industries, Ltd. product), ammonium sulfate, and urea _{((NH 2) 2} One or more compounds selected from CO Wako Pure Chemical Industries, Ltd.) were mixed at a ratio shown in Table 3 below to prepare a compound.

  On September 20, 2007, the drug based on Drug Preparation Example 2 was dissolved or suspended in water for the genoceros (Bryum argenteum) and algae generated in the bent glass of an athletic golf club in Inashiki City, Ibaraki Prefecture. 500 ml per square meter was sprayed with a spreader (manufactured by Maruyama Seisakusho Co., Ltd.). Carfentrazone-ethyl 36.5% wettable powder (trade name Task DF Ishihara Bioscience Co., Ltd.) is used as a control agent for controlling moss, and oxpocofumarate 2.5% is used as a control agent for controlling algae. -Manzeb 65% mixed wettable powder (trade name: Pencoshine Inc., Riken Green Co., Ltd.) was used. The area of 1 ward was 2 repetitions of 0.5 square meters. After 4 days, 2 weeks, 4 weeks later, Ginkgo and algae control degree, lawn dark greening degree ranking after 2 weeks, lawn bud clogging degree after 4 weeks after ginkgo and algae control 0 (no change)- The survey was conducted in three stages of 3 (almost bud clogging). Fertilization was not performed during the test period, and trimming was performed every 1 to 2 days. In the case of moss, about 90% or more of the pre-treatment individuals are dead, ◎ 60% to 90% are dead, ○ 30% to 60% are dead, and almost no effect is observed. . In the case of algae, the darkened voids in which algae are generated are hardly seen, ○, which is slightly recognized, 半 分 which is about half of the untreated area, and × where almost no effect is observed. The moss control results are shown in Table 4 below, and the algae control results are shown in Table 5 below.

  On 20th September 2007, a drug based on Formulation Example 9 in Drug Preparation Example 1 was dissolved in water for the algae generated in Ryugasaki Country Club in Ryugasaki City, Ibaraki Prefecture. 500 ml per square meter was sprayed by Maruyama Seisakusho. Thereafter, the same amount of drug was sprayed every two weeks. Oxpocofumarate 2.5% and manzeb 65% wettable powder were used as control agents for algae control. The area of 1 ward was 2 repetitions of 0.5 square meters. The degree of algae control after 2 weeks, 4 weeks and 8 weeks and the degree of bud clogging after algae control after 8 weeks were investigated in three stages from 0 (no change) to 3 (almost bud clogging). Fertilization was not performed during the test period, and trimming was performed every 1 to 2 days. The degree of control was represented by ◎, in which almost no voids in which algae were generated were observed, ◯, which was slightly recognized, △, which was about half of the untreated area, and ×, in which almost no effect was observed. The results are shown in Table 6 below.

Claims (4)

A method for controlling moss and algae using a fertilizer component containing an iron compound and a nitrogen compound in combination. A method for controlling bryophytes and algae using fertilizer components containing ferrous sulfate and nitrogen compounds in combination. A moss and algae control agent in which a fertilizer component containing a nitrogen compound is mixed with an iron compound. A moss and algae control agent in which fertilizer components containing nitrogen compounds are mixed with ferrous sulfate.