ABSTRAKBudidaya padi merupakan salah satu sumber potensial penyumbang GRK) seperti gas methan (CH4),yang menyumbang sekitar 11% berupa emisi gas CH4di dalam atmosfer. Budidaya padi menghasilkan emisi gas methan yang tinggi diperkirakan sebesar 2.57  T.g per tahun. Emisi gas methan diperkirakan sekitar 58 % berasal dari budidaya padi sawah terutama di pulau Jawa.Implementasi pengelolaan tanaman terpadu (PTT) padi sawah ramah lingkungan diharapkan mampu menekan emisi gas methan. Pengkajian telah dilaksanakan dengan tujuan untuk mendapatkan paket teknologi PTT padi Ramah Lingkungan yang  meningkatkan hasil padi dan menurunkan emisi gas methan pada lahan sawah irigasi. Pengkajian dilahan petani (“Onfarm research”) telah dilaksanakan pada daerah penghasil var. Rojolele yaitu di Desa Gempol, Kab. Klaten dari bulan Maret sampai bulan September 2016 seluas 1,8 ha yang melibatkan sembilan petani binaan, setiap petani seluas 0,20 hektar. Rancangan Acak Kelompok digunakan dengan delapan ulangan. Duajenis PTT Padi Ramah Lingkungan dan Pengelolaan Tanaman Terpadu Padi eksisting.Pertama, PTT Padi  Ramah Lingkungan (PTTRL))  yang terdiri atas komponen (a) Benih var.  Rojolele dengan “seed treatment” Reagent 5 EC, (b) Umur bibit 20 hari (c) sistem tanam jajar legowo tipe 2 : 1, Jml bibit 2 tanaman/rumpun (d) Pemupukan berimbang dengan dua aras yaitu  takaran N  (sumber ZA), pemberian berdasarkan Bagan Warna Daun (BWD), +  unsur P dan K berdasarkan perangkat PUTS  +  500 kg Petroganik//ha(PTTPetro), N berdasarkan BWD (sumber ZA), pupuk P dan K berdasarkan PUTS + 2 ton Pukan/ha (PTTPukan). Kedua, PTT eksisting yang dominan (PTTExist) terdiri atas (a) Varietas Rojolele,  umur bibit 25 hari, (b), Cara tanam sistem tegel 25 cm x 25 cm (c), Takaran pupuk  yang dominan di tingkat petani, (d), Pengendalian OPT berdasarkan kalender). Data yang dikumpulkan meliputi tinggi tanaman, jumlah anakan, komponen hasil dan hasil padi. Pengamatan emisi (gas CH4dan gas N2O) dengan menggunakan “sungkup”  pada umur 42, 63, 105 dan 112 Hari setelah tanam (Hst). Pengukuran emisi rumah kaca dilaksanakan di Kantor Balingtan Pati.Hasil penelitan menunjukkan bahwa  (1) Penerapan (PTTPetro) memberikan hasil yang tertinggi (5,219 t GKP/ha) meningkatkan hasil sebesar 30 % diatas kontrol ((3.620 t GKP/ha), dan menurunkan emisi gas CH4 sebesar 13,6%\ dibawah kontrol (emisi:76,05kgCH4/ha/musim). Kata kunci: 1, PTT,2, Padi, 3. emisi gas metana (CH4), 4. sawah irigasiABSTRACTRice cultivation to produce of highest methan gases i.e 2.57  Tg per years.  Methan gas emission be predicted by 58 % from rice sawah culture from Java. The implementation of rice integrated plant management (IPM) to increase of productivuty and able to supress of greenhouse emission (GHGs).  The Goals of this experiment was to find out of technology packages of potensial local rice IPM specific central java and  feasibility rice farming. On farm research was conducted in central development of Rojolele variety i.e Gempol, Karanganom subdistrict, Klaten district since March-September 2016 about 1.60 hectares. Randomized Block Designs used with  eight replicated (eight farmers, each farmers about 0,20 ha). Two kinds of Rice IPM,  First, Rice IPM enviromental friendly (IPMR-EF) with eight farmers as replicated. Technology componen of (IPMR-EF) consisted of (a) the use of Rojolele var with “seed treatment” Reagent 5 SC, (b) Seedling age  20 days, (c) jajar legowo transplanting system, 2 : 1 types, Seedling numbers 1 – 2 plant/hills (d) Balance fertilizers consisted of two levels i,e (d1)  N dosis(ZA sources) based on Leaf Colour Charge (BWD), + Phosphor and Photassium based on  PUTS Kit,  +  500 kg Petroganic/ha, (IPMPetro) Dosage of (N/ZA sources), + Phosphor and Potassium based on PUTS Kit, and  2 ton farmyard manure/ha (e) Pest regulation (Regulation of rice sowing by hayati agent such ash (Metarhizium anisopliae 5 cc/l, Beauveria basisiana). The usage of pesticides will be applied if insect population over threshould. Second (IPMR-FYM,) the same treatment first but source of organic fertilizer as  Farmyard Manure 2 ton/ha (IPMFYM). Third treatment (IPMR-exs) were rice farmer management dominant, consisted of (a) Rojolele variety, seedling age 25 days (b), “Tegel transplanting system” (c), farmers dominant fertilizer dosages (d), pestidicide calender system.Parameters were collected such as plant growth, yield component and yield. Observers of greenhouse emission such as CH4 and N2O used “Box Chamber” at 42;   63;  105;  and 112 days after transplanting.  Emisson methan and N2O were conducted in in Indonesian Agricultural Environment Research Institute (IAERI)  in Pati. Input-output” data farming system among (IPMR-EFTg and IPMR-Effym) compared to control (IPMR-exs). Technical data were analized by variant analysis continued by DMRT05. Visibility of introduction IPM technology (IPMR-RL) was analized with use B/Cratio.   Research resulted that (1) IPMR-FYM  (Use Rojolele cv, seedling age  20 days, plant system type 2 : 1 “jajar legowo”  with fertilizers dosaage based on PUTS Kit  (N soures ZA + Phonska) + 2 t FYM/ha, application of nabati pesticide and intermittent irrigation able to give highest yield (5,219 t Gkg/ha) to increase 30 % over control (3.620 t Gkg/ha), but to decrease methan gas emission 13,6 % under control/IPMExist (gas CH4 emission : 76,05 kg CH4/ha/seasons).umur 42, 63, 105 dan 112 Hari setelah tanam (Hst)Keywords: IPM, , Rice, Glasshouse Emission, irrigated land

Bawang putih (Allium sativum L) selain merupakan salah satu jenis sayuran penting di dataran tinggi, sekaligus merupakan salah satu sumber pertumbuhan baru ekonomi dalam pembangunan pertanian. Penelitian bertujuan untuk menganalisis faktor-faktor yang mempengaruhi efektivitas diseminasi teknologi budidaya bawang putih ramah lingkungan melalui pelatihan, demplot, dan temu lapang pada petani di Pancot, Desa Kalisoro, Kecamatan Tawangmangu, Kabupaten Karanganyar. Penelitian menggunakan pendekatan kuantitatif. Populasi penelitian adalah anggota kelompok taruna tani Tani Maju yang tergabung dalam Gabungan Kelompok Tani Ngudi Rejeki. Responden penelitian ditetapkan sebanyak 40 orang taruna tani. Data yang dikumpulkan meliputi persepsi petani terhadap pelaksanaan diseminasi, dan tingkat efektivitas diseminasi, meliputi pelatihan, demplot, dan temu lapang, terhadap teknologi rekomendasi. Data dianalisis mengunakan teknik analisis statistik deskriptif dan analisis jalur. Hasil penelitian menunjukkan terdapat 27 petani yang menilai bahwa pelaksanaan diseminasi efektif dengan nilai 90%. Ketiga metode diseminasi, yaitu pelatihan, demplot, dan temu lapang secara signifikan berpengaruh terhadap efektivitas diseminasi, dengan besar pengaruh masing – masing adalah 79,92%, 26,21%, dan 45,02%. Besar pengaruh pelatihan, demplot, dan temu lapang secara bersama-sama terhadap efektivitas desiminasi adalah 89,5% sedangkan sisanya yaitu 10,49% dipengaruh oleh faktor atau variabel lain di luar ketiga metode tersebut.

The study aimed to analyze the effect of organic fertilizer, biochar and hormone to the bulb splitting in cultivation of true shallot seed. The research was conducted in Grobogan Regency, in March-June 2019. The applied experimental design was Split-Split Plot with three replications. The main plot treated with organic fertilizer (P) consisted of P1=5 t/ha, P2=10 t/ha, and P3=20 t/ha, the subsidiary plot treated Biochar (B) marked B1=without Biochar and B2=Biochar 12.5 t/ha, and the sub-subsidiary plot was treated with Hormone (H); H1=without hormone, H2=with hormone; altogether were 12 treatment combinations and 36 experimental plots. Parameters observed were plant height, number of leaves, number of plants/clump, number of bulbs/clump, number of bulbs splitting, bulbs diameter, and dry weight of bulb/clump. Data were analyzed statistically using ANOVA, and if there was a significant difference between treatments, it was tested with the Duncan Multiple Range Test at a 5% level. The results showed that the provision of biochar as many as 12.5 tons/ha positively affected the growth components and the yield components of true shallot seed (number of plants/clump, number of bulbs/clump, number of bulbs splitting, bulbs diameter, and dry weight of bulb/clump).

The agroecological zone (AEZ) is a land potential information system for land use planning and commodity development. AEZ contains information on landforms, elevation, topography, soil characteristics, temperature, etc. which is useful for determining the suitability of land and commodities. This study aims to determine the technology requirement based on the limiting factors found in each land unit. The methods of determination of land suitability and technology requirement were carried out using the FAO standard land evaluation program, by matching land characteristics with plant growth needs. Through the application of recommendation technology that suitable for land capability, the cultivation system becomes more adaptive to the environment, so that the possible negative impact of climate change can be minimized. The limiting factors found as constraints to the development of food crops in the Boyolali District include (a) temperature conditions, (b) rooting conditions, (c) nutrient retentions, (d) erosion hazard, (e) land preparation, and (f) flooding hazard. Based on existing limiting factors, land management should be focused on (a) using adaptive varieties to local temperatures; (b) providing organic fertilizer to improve soil drainage, organic C and CEC soil; (c) lime and soil ameliorant application to increase base saturation, deep and reverse soil treatment to increase CEC; (d) conservation-oriented planting system and (e) eradication of rocks with minimum tillage.

At present around 95% of Indonesia’s consumption of garlic needs is fulfilled from imports. In 2019, the need for Indonesian garlic is reported to be 570 thousand tons and can only be fulfilled from domestic production of around 3.36%. Through efforts to increase production, starting in 2017 the Indonesian government has been determined to reduce the dependence of garlic imports and is targeted to gradually become self-sufficient in 2021. The use of growth hormones is believed to be able to help stimulate the growth of garlic bulbs becoming bigger. In the 2017/2018 planting season an assessment of the use of growth hormones in garlic production in Temanggung was conducted. The study used a randomized block design by applying 4 treatments and 5 replications. The treatment consisted of the gibberelin ‘Super Gibs’ hormone, Patrol, Hormonik and control. The study was conducted in 2 farmers groups of garlic in Glapansari Village, Parakan Sub District of Temanggung District, from December 2017 to April 2018. The results of the study of growth hormone stimulation, showed an increase in yield of 17-56% from control,which not given hormone treatment. The treatment of growth hormone can reach an average yield of 6.68 tons/ha or an increase of 1.30 tons/ha (an average of 24%) from controls, which only achieve an average yield of 5.39 tons/ha. The highest of yield increase was achieved in the treatment of hormonal ‘Hormonik’ (35% increased) and Patrol (32% increased) of the controls, but between both tended not to be significantly different. While the application of the Super Gibs hormone, has not shown a real and consistent effect on improving garlic yield. The increase in yield on the treatment of growth hormone is due to an increase in the bulbs weight component (an average of 25% increased) and the size of the bulbs diameter (an average of 11% bigger) of garlic produced.