English Presentation on WMD Jakarta, 21th January 2011

English Presentation Jakarta, 9th February 2011Weather Influence on Apple Production at Batu, Malang CityBy : Trisnawati

ACADEMY METEOROLOGY AND GEOPHYSICSJAKARTA

IntroductionAppleWeather in Batu, Malang CityComparison AnalysisConclusionOUTLINE

Batu city is located in East Java, Indonesia. Formerly it was a part of Malang regency, but in 2001 Batu became an independent city legalized by Act of 2001.It is :- 7,44 55,11" up to 8,2635,45" South altitude- 122,17 10,90" up to 122,57 00,00" North altitudeIt is 202,800 Km2 or about 20,280 ha in width.Batu city is divided into 3 subdistricts :Batu, Bumiaji and Junrejo. The subdistricts are further divided into 24 villages.It is the one of famous tourism places in East Java with agricultural and amazing mountain view. So that its called the real tourism city of Indonesia by Bappenas.Batu City

In Latin language is Malus domestica.Apple is an annual fruit comes from West Asia in subtropical area.The most planted in the world are Rome Beauty, Anna, Manalagi and Wangli.Batu Malang, East Java is the one of apple big distributor.Apples tree is a small tree with 3 -12 m of high and a lot of branch.

What is Apple ?

Could grow at 700 1200 m MSLOptimum growth at 1.000 1.200 m MSL Climate:1. Ideal rain fall = 1.000 2.600 mm/year.2. 6 7 wet month and 3 4 dry month3. 50 60 % sun shine/day4. 16 27 C5. 75 85 % of humidityMedia :1. Latosol,Andosol or Regosol.2. Crumb soil, good porosity ,air circulation, good absorption.3. Enough water (not too wet).4. 6 -7 for soils pH.

Requirement:

It is at 800 3000 m MSL.Andosol.It is :- 7,44 55,11 up to 8,26 35,45 south altitude- 122,17 10,90 up to 122,57 00,00 north altitudeIt is surrounding by mountain.The temperature is about 21,5 C.Maximum temperature is about 27,2 C.Minimum temperature is about 14,9 C.Relative humidity is about 86 %.Maximum humidity is about 97 %Minimum humidity is about 37 %Rain fall is about 2471 mm/ year.

Weather in Batu City

NOVARIABLEREQUIREMENTFACT1.High700 1200 m MSL800 3000 m MSL2.Rainfall1000 2.600 mm/ year2.471 mm / year3.Temperature16 27 C21,5 C4.Humidity75 85 % 86%5.SoilLatosol, Andosol or RegosolAndosolComparison

NOYEARTEMPERATURE (C)1199122,9 28,32199322,96 28,63199422,56 264199823,8 27,35200822,97 28,66200923,6 27,5Analysis (1)

NOYEARHUMIDITY (%)1199916 - 272200920 - 31Source : Staklim Karang Ploso, MalangNOYEARWIDTH AMOUNT OF TREESAPPLE PRODUCTION119802.015 ha5,64 million72.000 ton / year22009600 ha2,506 million24.625 ton / yearAnalysis (2)

NOKIND OF FORESTWIDTH1Protecting Forest3.099,6 ha 2Productive Forest3.118,2 ha3Conservative Forest5.009,6 haTOTAL11.227 haDESTROY5.900 haSource: Batu City Goverment11 From the comparison slide:Batu, Malang City has appropriate requirementto cultivate apple in huge numereous.

From the analysis slide :The increasing of temperature andhumidity, decreasing of farming land and thebad of soils condition are the causes ofdecreasing apple production.

Analysis (3)

Batu City is the one of the biggest apple distributor.

It has good appropriate requirement to cultivate apple in huge numereous.

Climate change, decreasing farming land make the decreasing of apples quality and quantity.Weather take a big part on agricultural.Conclusion

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