Time of application for spodopteralitura Nuclear Polyhedrosis Virus (S/NPV) in controlling the soybean: Common Cutworm. Saat aplikasi virus Spodoptera litura Nuclear Polyhedrosis dalam pengendalian ulat grayak/Kinangen, J.G.; Tumewu, R; Arifin, M; Sukardi, E Seminar Hasil Penelitian Tanaman Pangan Balittan Bogor Bogor (Indonesia) 29 Feb-2 Mar 1992 [Results of Food Crops Researches : Proceedings of BORIF Seminars]. Hasil Penelitian Tanaman Pangan : Prosiding Seminar Balittan Bogor/Balai Penelitian Tanaman Pangan, Bogor (Indonesia) Bogor (Indonesia): Balittan, 1992 4 ill; 2 tables; 5 ref.
GLYCINEMAX; SPODOPTERA LITURA; INSECT CONTROL; BACULOVIRIDAE;
TREATMENT DATE; MORTALITY.
Time of Application for Spodoptera litura Nuclear-Polyhedrosis Virus (S/NPV) in Controlling the Soybean Common Cutworm. An experiment was conducted in a greenhouse to determine suitable time of applications for different level of S/NPV concentrations to control the soybean cutworm. The experiment design used was split-plot with 10 replications.
Main plots consisted of 3 time of S/NPV applications, namely in the morning, at noon, and in the afternoon, 7:30, 12:30, and 16:30 o'clock, respectively. Results of the experiment indicated that concentration of 4.10-7 PIBs/ml applied at 500 l/ha in the afternoon was suitable to control the cutworm. The mortality level of the cutworm at these concentration, dose, and time of application of S/NPV was relatively high, about 84 percent, and 80 percent mortality level was achieved in a relatively short time, about 7 days.
KAHER, A.
Cultivation technology of rice and secondary crops (palawija) on upland soil. Teknologi budidaya padi dan palawija di lahan kering/Kaher, A.; Syarif, A.A. Seminar Hasil-Hasil Penelitian Balittan Sukarami Sukarami (Indonesia) 1992 [Proceedings of the Seminar on Food crops research results in Sukarami Research Institute for Food Crops, West Sumatra (Indonesia)]: vol. 1. Risalah seminar hasil-hasil penelitian Balittan Sukarami/Balai Penelitian
Tanaman Pangan, Sukarami (Indonesia) vol. 1. Sukarami (Indonesia): Balittan, 1992 p. 6-20 5 ill.; 5 tables; 19 ref.
UPLAND RICE; ZEA MAYS; GLYCINE MAX; ORYZA SATIVA; FOOD CROPS;
CULTIVATION; LIMING; VARIETIES; TILLAGE; PLANTING; FERTILIZER APPLICATION; PEST CONTROL; DISEASE CONTROL; PODZOLS.
Expansion of food crops cultivation is mostly located on Latosol and Red Yellow Podzolic Soils. Unfortunately the condition of both soils is unfavorable for food crop production. The soil are acid, high in aluminum saturation and low in fertility. The tolerance of crops to aluminum toxicity varies, depends on species and variety. More recent studies show that the yield of upland crops is the function of aluminum saturation. Therefore, to increase land productivity selected varities based on aluminum saturation tolerance or amelioration of the soil to reduce aluminum saturation is required. Upland rice is reported to be the most tolerant upland crops to acid soil. The yield stability is influenced by the variation of physiological races of Pyricularia oryzae. Most of improved varieties of palawija crops were released for fertile upland soil, therefore they are relatively sensitive to aluminium toxicity. Liming of the soils showed good response to increase the crops yield. Deep liming more than 30 cm gave higher yield as compared to shallow or surface application.
KARI, Z.
Technology package for soybean cultivation on acid soil condition. Paket teknologi budidaya kedelai untuk lahan kering/Kari, Z.; Zaini, Z.; Ali, M.; Kenedi, J. Seminar Hasil-Hasil Penelitian Balittan Sukarami Sukarami (Indonesia) 1992 [Proceedings of the seminar on Food crops research results in Sukarami Research Institute for Food Crops, West Sumatra (Indonesia)]: vol. 1. Risalah seminar hasil-hasil penelitian Balittan Sukarami/Balai Penelitian Tanaman Pangan, Sukarami (Indonesia) vol. 1. Sukarami (Indonesia): Balittan, 1992 p. 79- 86 1 ill.; 5 tables; 6 ref.
GLYCINE MAX; TECHNOLOGY TRANSFER; MULCHES; FERTILIZER
APPLICATION; SEED TREATMENT; SPACING; PLANT GROWTH SUBSTANCES;
GROWTH; YIELDS; ECONOMIC ANALYSIS.
A verifying trial of four alternative technology packages has been conducted at Sitiung I, West Sumatra, during 1991 dry season. The result showed that package of 50 kg Urea, 50 kg TSP, 50 kg KCl, 500 kg lime (dolomite), 2 ton burned rice straw per ha, and using seed treatment of Marshal and Rhizobium as recommeded gave the highest yield (13,66 kw/ha), or about 76 percent higher than that of farmers package.
5699 KARI, Z. response of some soybean varieties to phosphorus on red yellow podzolic Sitiung. Tanggap beberapa varietas kedelai terhadap pupuk TSP pada tanah podsolik merah kuning Sitiung/Kari, Z.; Musfal; Alini, N. (Balai Penelitian Tanaman Pangan, Sukarami
(Indonesia)) Risalah Seminar Balai Penelitian Tanaman Pangan Sukarami (Indonesia) ISSN 0854-3089 1995 v.8 p.122-127 1 ill., 1 table; 11 ref.
GLYCINE MAX; VARIETIES; PLANT RESPONSE; FERTILIZER APPLICATION;
SUPERPHOSPHATE; APPLICATION RATES; GROWTH; YIELDS; PODZOLS.
An experiment was conducted at the Green House of Sukarami Research Insitute for Food Crops from December 1993 to March 1994, using a randomized complete block design two factors with three replications. The first factors was three varieties of soybean (Singgalang, Kipas Putih, and Kipas Merah) and the second factor was three rates of P fertilizer (0, 100, and 200 kgs TSP/ha). Result showed that the three soybean varieties tested did not respond to P fertilizer up to 200 kg/ha TSP on Red Yellow Podzolic Sitiung Application of P fertilizer alone could not overcome the problem of red yellow Podzolic Sitiung. Singgalang variety was more toleran to soil fertility problems than Kipas Merah and Kipas Putih
10724 KARI, Z. The Time of N application for soybean on red yellow podzolic Sitiung, West Sumatra (Indonesia). Waktu pemupukan nitrogen pada kedelai di tanah podsolik merah kuning Sitiung/Kari, Z.; Yustisia (Balai Penelitian Tanaman Pangan, Sukarami (Indonesia)) Risalah Seminar Balai Penelitian Tanaman Pangan Sukarami (Indonesia) ISSN 0854-3089 1994 v. 3, p. 83-90 9 tables; 5 ref.
GLYCINE MAX; NITROGEN FERTILIZERS; TIMING; PODZOLS; RHIZOBIUM JAVANICUM; DRY FARMING; GROWTH; YIELDS; SUMATRA.
Two experiments were conducted at the farmer's field of Sitiung I A'from September 1991 to May 1992, to obtain the effect of time of N application on the growth and yield of soybean.
The first experiment was planted on September 1991 and the second one on February 1992, used completely randomized block design with tree replications. Urea (50 kg/ha) as the source of nitrogen were treated through five distributed time applications, i.e. (1) 100 percent at the planting date (PD), (2) 50 percent at PD and 50 percent one week after planting (WAP), (3) 50 percent at PD and 50 percent two WAP, (4) 50 percent at PD and 50 percent three WAP, and (5) 50 percent at PD and 50 percent four WAP. Due to the lack of rainfall during the first experiment, the effect of time of N application on the growth and yield of soybean could not be detected. On the other hand, at the second experiment, the application of 50 percent N at the planting date and other 50 percent at three and four weeks after planting gave the highest yield.
KARTOWINOTO, S.
Performance of soybean germplasms on water Logging soils. Penampilan plasma nutfah kedelai pada tanah tergenang/Kartowinoto, S.; Saefudin, A.; Zaini, A. Seminar Hasil Penelitian Tanaman Pangan Balittan Bogor Bogor (Indonesia) 29 Feb - 2 Mar 1992 [Results of food Crops Researches : Proceedings of BORIF Seminars]: Vol. 1. Hasil penelitian
tanaman pangan : prosiding seminar Balittan Bogor/Balai Penelitian Tanaman Pangan, Bogor (Indonesia) Vol. 1. Bogor (Indonesia ): Balittan, 1992 p. 166 - 170 3 tables ; 4 ref.
GLYCINE MAX; GERMPLASM; WATERLOGGING; VARIETIES; YIELDS.
Performances of soybean germplasms on water logging soils. Fifty soybean germplasms consisted of local cultivars,introduced varieties and 2 improved varieties were grown at Citayam experimental farm during the 1990/1991 wet season. The plants were fertilized with 50 kg Urea, 100 kg TSP, and 50 kg KCL/ha, respectively, which were applied as basic fertilizers. The experiment was arranged in a randomized block design with three replications.
Data of plant height, number of branch, 100 - seed weight and grain yield were collected.The results showed significant differences among varieties on the plant height, fresh weight,100 - seed weight, and yield of 10 plants. Twelve varieties produced higher yields than CV Raung.
Five cultivar wich have higher yields than CV Merbabu were lokal variety from Sukoharjo, CV Jawa from Kebumen, CV Presi from East Java, CV Empyek from Jember, and a local cultivar from Pagak, East Java.
MARWOTO.
The effectivitas of soybean pest control using different levels of insecticide spray volume.
Efektivitas pengendalian hama kedelai dengan insektisida pada beberapa tingkatan volume semprot/Marwoto (Balai Penelitian Tanaman Pangan, Malang (Indonesia)) Penelitian Palawija (Indonesia) ISSN 0215-1669 1992 v. 7(1,2) p. 53-61 5 tables ; 8 ref.
GLYCINE MAX; INSECT CONTROL; INSECTICIDES; APPLICATION RATES; LOW VOLUME SPRAYING; POPULATION DENSITY; PRODUCTION INCREASE;
OPHIOMYIA PHASEOLI; LARVAE; PUPAE; CHRYSODEIXIS; SPODOPTERA LITURA; MELANAGROMYZA; NEZARA VIRIDULA; LEAF EATING INSECTS.
Pengendalian hama kedelai di tingkat petani masih mengadalkan insektisida, namun dosis rekomendasi belum dapat terpenuhi akibat pengunaan volume semprot yang masih sangat rendah (150 - 200 l/ha). Pengunaan volume semprot yang rendah ini disebabkan karena kedelai sering di tanam terutama pada ekosistem yang kering, ditanam musim kering dan jauh dari sumber air. Kajian pengunaan beberapa volume semprot pada dosis rekomendasi insektisida terhadap efektivitas pengendalian hama kedelai telah dilaksanakan di Kebun Percobaan Balai Penelitian Tanaman Pangan Malang di Mojosari dan Jambegede pada Musim Kemarau 1992, dengan menggunakan rancangan acak kelompok, empat kali ulangan.
Hasil percobaan menunjukan bahwa insektisida monokrotofos 15 WSC dosis 2 l/ha dan chlorpyrifos 20 EC dosis 2 l/ha yang diaflikasikan mengunakan nozel biasa (tunggal) dengan berbagai volume semprot: 250 l. 350 l, 450 l dan 550 l/ha, serta nozel Teejet 11001 vs dengan volume semprot 75 l, 100 l, 150 l dan 200 l/ha cukup efektif dalam menekan populasi hama (lalat bibit, hama daun dan hama perusak polong), serta meningkatkan hasil. Hasil rata-rata yang dicapai pada perlakuan aplikasi insektisida 2,247 t/ha, yang berarti menekan kehilangan hasil hingga 38,25 persen. Hasil pemberian ini memberikan indikasi bahwa aplikasi
insektisida pada dosis rekomendasi masih tetap efektif, walupun volume semprot dikurangi.
Dengan menggunakan jenis nozel biasa (tunggal) yang umum digunakan petani, volume semprot dapat dikurangi hingga menjadi 200 l/ha, sedang dengan nozel jenis Teejet 11001 vs volume semprot dapat dikurangi hingga menjadi 100 l/ha.
MARZUKI, A.R.
Report of liming, Phosphate and farm yard manure fertilization on upland rice and soybean cropping pattern. Laporan pengapuran, pemupukan P dan pupuk kandang pada pola tanam padi gogo-kedelai/Marzuki, A.R.; Damanhuri, R.; Pudjirahaju (Balai Penelitian Tanaman Pangan Sukarami (Indonesia)) Sukarami (Indonesia): 1992 31 p. 10 ill.; 8 tables; 11 ref.
ORYZA SATIVA; UPLAND RICE; GLYCINE MAX; CROPPING PATTERNS; LIMING;
ORGANIC FERTILIZERS; PHOSPHATE FERTILIZERS; GROWTH; YIELDS; ARID SOILS; PODZOLS; SUMATRA.
Field experiment was carried out at Tamanbogo Experimental Station, Central Lampung, during the wet season 1989/1990. The experiment was arranged in split-plot design, with three replications. Lime (CaCO3) was used as mainplot, while phosphorus combined with cow manure (organic) at different rates were used as subplot. Results of the experiment showed that no significance different caused by liming on rice yield. The differences of yield occured by application of P and organic fertilizer, event the yield were relatively uniform, ranged from 2.27 to 2.40 t/ha. Interaction of liming and P/organic fertilizer had no effect on rice yield. Effect of liming resulted in significant difference not only on grain yield of soybean, but also on its growth and yield components. The lowest yield was obtained from the plots with no lime application (0.74 t/ha), and the yield increased by the increasing rate of lime. Data showed taht liming was able to improve soybean yield varied from 1.3 to 1.40 t/ha.It was noticed that application of P and/or organic fertilizer increased soybean yield. The combinations of 90 kg P2O5/ha + 0.25 t/ha organic manure or 67.5 kg P2O5/ha + 1.0/ha organic fertilizer gave the highest yield (1.2 t/ha). There were no effect of these rfertilizers on yield components so far. Interaction of lime and P/organic fertilizer showed significant difference. The application of lime at the rate of 0.75 exchangeable alumunium and 67.5 kg P2O5 +1.0 t/ha organic matter or 1.50 exch. Al and 90 kg P2O5+0.25 t/ha organic matter produced the highest yield.
MARZUKI, A.R.
[Effect of amelioration on crop sequence of upland rice soybean cowpea, under the red- yellow-podzolic]. Pengaruh pemberian bahan amelioran pada tanam padi gogo-kedelai kacang tunggak di lahan kering podsolik merah kuning/Marzuki, A.R.; Sutriadi, M.T.;
Ardjasa, W.S. (Balai Penelitian Tanaman Pangan, Bogor (Indonesia) Bogor (Indonesia): 1992 36 p.
UPLAND RICE; GLYCINE MAX; VIGNA UNGUICULATA; CROPPING PATTERNS;
CROPPING SYSTEMS; SOIL FERTILITY; GROWTH; ORGANIC FERTILIZERS;
LIMES; GRAIN; YIELDS; SOIL TESTING.
The amelioration in red-yellow-podzolic soil was considered as determinant to improve soil productivity. It has been indicated that the red-yellow-podzolic soil has low in productivity because of insufficient in nutrients status for crop growth. The experiment of using anorganic, organic fertilizers, and lime were conducted at Tamanbogo Experimental Station, Lampung and Batumarta. Upland rice variety Danau Tempe, was planted at WS. 1991/92. At Tamanbogo, it wasn't grow well caused by lack of rainfall at flowering stage and blast desease. These condition caused lower grain yield than under normal condition. The grain yield varied from 1.2 - 1.9 t/ha. The highest yield was obtained under 45-90-180 combined with 200 kg lime + 200 kg kieserit/ha. Soybean was planted in the following season DS 1992.
Lime and kieserit as residue. The highest seed yield was obtained under the treatments of (45- 90-60) + 0.85 t lime/ha (1.4 t/ha). In Batumarta, soybean was planted as first crop, in DS.
1991. The yield under the fertilizer treatments varied from 0.3 - 0.9 t/ha. The treatment of (45-90-180) + 1.79 t lime/ha + 1.79 t rice straw/ha produced the highest seed yield, i.e. 0.9 t/ha. In the second season, and upland rice variety-Danau Tempe, was planted at the end of December 1991. Results showed that amelioration increased grain yield significantly, varied from 3.3 - 4.2 t/ha compared to the control plots (0.42 t/ha). Cowpea as the last crop at both sites couldn't be harvested because of drought
MUHADJIR, F.
Effect of drying temperature on soybean seed viability. Pengaruh suhu pengeringan terhadap viabilitas benih kedelai/Muhadjir, F.; Sukarman Seminar Hasil Penelitian Tanaman Pangan Balittan Bogor Bogor (Indonesia) 29 Feb - 2 Mar 1992 [Results of Food Crops Researches : Proceedings of BORIF seminars]: Vol. 1. Hasil penelitian tananam pangan : prosiding seminar Balittan Bogor/Balai Penelitian Tanaman Pangan , Bogor (Indonesia) Vol. 1. Bogor (Indonesia): Balittan, 1992 p. 238 - 246 2 ill., 3 tables ; 6 ref.
GLYCINE MAX; VARIETIES; SEED; VIABILITY; DRYING; TEMPERATURES; SEED LONGEVITY.
Effect of drying temperature on soybean seed viability. Seed of eight soybean varieties, namely Galunggung, Tambora, Merbabu, Lompobatang, Wilis, Kerinci, Lokon and Tidar, were dried at three different temperatures (40 degree, 45 degree, 50 degree) for 48 hours duration. Increasing drying temperatures caused decreasing soiybean seed viability and vigor during storage. After one month storage at room temperature, the germination percentages were still high (92.5 - 98.0 percent) in all treatments. Observation at third months after drying in 50 degree C showed that the germination percentages were much lower than those of 40 degree C for in all varieties tested. The higher drying temperature the higher seed deterioration. This experiment showed that variety Kerinci was resistent to high drying
temperatures among the 8 varieties tested. Variety Tidar was the most susceptible to drying at high temperature.
MUHADJIR, F.
Deteriotion in Soybean seed during storage in caused by several factors. Faktor-faktor penyebab kemunduran daya tumbuh benih kedelai selama penyiapan/Muhadjur,F (Balai Penelitian Tanaman Pangan (Indonesia) Kelompok Peneliti Fisiologi) Seminar hasil penelitian tanaman pangan Balittan Bogor Bogor (Indonesia) 19-20 Feb 1991. Seminar hasil penelitian tanaman pangan Balittan Bogor/Balai Penelitian Tanaman Pangan, Bogor (Indonesia) v. 2. Bogor (Indonesia): BALITTAN, 1992 p.383-392 3 tables; 11 ref.
SEEDSSOYBEANS; STORAGE; DETERIORATION; STORAGE; VIABILITY.
Deteration in soybean seed during storage is caused by several factors. Soybean seed viability under natural condotions is relatively short. Cultural practices, climaters, and harvest times influenced the seed quality. At post harvest period straw dryng, threshing, sortation, and seed drying are the most important factors. The seed deteration could be caused by fungi or storage insects. Sof the control methods for lengthening the viability of soybean seed are the of dessicant (such as CaO and dry-husk ash), airtight condition, exact initial moirture contents, locations with low temperature and humidity.
MUNIR, R.
Agronomic practices of soybean under lowland rice field. Penelitian teknik budidaya kedelai di lahan sawah/Munir, R.; Artuti, A.M.; Ali, M. Seminar Hasil-Hasil Penelitian Balittan Sukarami Sukarami (Indonesia) 1992 [Proceedings of the seminar on Food crops research results in Sukarami Research Institute for Food Crops, West Sumatra (Indonesia)]: vol. 1.
Risalah seminar hasil-hasil penelitian Balittan Sukarami/Balai Penelitian Tanaman Pangan, Sukarami (Indonesia) vol. 1. Sukarami (Indonesia): Balittan, 1992 p. 99-106 1 ill.; 5 tables;
10 ref.
GLYCINE MAX; CULTIVATION; SOIL CHEMICOPHYSICAL PROPERTIES;
GROWTH; YIELD COMPONENTS; YIELDS; ECONOMIC ANALYSIS.
An experiment was conducted at farmers field Kapencong Village Pesisir Selatan, West Sumatra from March to July 1991, to determine the performances of soybean on lowland rice field (sawah). Four packages of soybean culture technic que including farmer's fractice were arranged in a Randomized Complete Block Design with four replicatiq. The result showed that optimum input (Urea 50 kg, TSP 100 kg and KCl 50 kg/ha) dibled without cultivation and 5 ton mulch per-hectare) yielded 2.341 kg/ha with net profit of Rp. 1.385.450,-/ha.
NAJIB, M.
The effectiveness of ten insecticides to soybean pod borer and pod sucker. Keefektivan sepuluh insektisida terhadap hama penggerek dan pengisap polong kedelai/Najib, M.; Wilis, M. (Balai Penelitian Tanaman Pangan Banjarbaru (Indonesia)) Buletin Penelitian Kindai (Indonesia) ISSN 0852-8365 1992 v. 3(1) p.9-12 2 tables; 7 ref.
GLYCINE MAX; ETIELLA ZINCKENELLA; NEZARA VIRIDULA; RIPTORTUS;
INSECTICIDES; CHLORPYRIFOS; PHENTHOATE; DIAZINON; PROFENOFOS;
MONOCROTOPHOS.
To evaluate the effectiveness of ten insecticides in controlling pod borer and pod sucker of soybean, an experiment was carried out at farmers field at Gunung Makmur, Tanah Laut, from December 1990 to March 1991. Ten insecticides were tested and arranged in randomized block design with 4 replication. The insecticides tested were BPMC, cypermethrin, deltamethrin, diazinon, fentoat, chlorpyriphos, methamidophos, MIPC, monocrotophos and profenophos. The result of the experiment showed that six insecticides namely chlorpyriphos, fentoat, diazinon, MIPC, BPMC, and profenophos effectively controlled soybean pod borer infestation. In addition, diazinon also had better performance in suppressing pod sucker infestation and gave better yield of soybean.
NINGRUM, S.
Efficient K nutrient management for increasing soybeans yileds. Pengolahan hara K untuk tanaman kedelai/Ningrum, S; Makarim, A.K; Choliludin, A (Balai Penelitian Tanaman Pangan Bogor (Indonesia) Kelompok Peneliti Fisiologi) Seminar Hasil Penelitian Tanaman Pangan Balittan Bogor Bogor (Indonesia) 19-20 Feb 1991. Seminar Hasil Penelitian Tanaman Pangan Balittan Bogor/Balai Penelitian Tanaman Pangan Bogor (Indonesia) U3.
Bogor (Indonesia): Balittan, 1992 p.419-432 17 tables; 9 ref.
GLYCINE MAX; YIELD; SOIL FERTILITY; POTASH PERTILIZERS.
Efficient nutrient management for increasing soybean yiled is need in an effort to reach soybean self sufficiency in Indonesia. An appropriate Utilization of organic matter to the soil is expected to decrease the K fertilizer requirement by the plants and to increase yield. An experiment, consisted organic matter (OM) sources (control, rice straw, Calopogonium) x OM application methods (mulching and incorporated) x K rates (O and 60 kg K2O/ha), was conducted in a Latosol soil, at Citayam Experimental Station in the 1990 dry season. A factorial experiment in an RCB design was used with three replicates. Soybean variety Tidar was used and planted in 5 m x 4 m plots at 30 cm x 20 cm plant spacing. Each organic matter was applied as much as 15 t/ha. N and P fertilizers were applied to each plot at the rates of 45 kg N and 60 kg P2O5/ha, respectively.
PURNOMO, J.
Effects of legume-green manures on a productivity of degraded soil. Pengaruh berbagai bahan hijau tanaman kacang-kacangan terhadap produktivitas tanah rusak/Purnomo, J.;
Mulyadi; Amien, I.; Suwardjo, H. (Pusat Penelitian Tanah dan Agroklimat, Bogor (Indonesia)) Pemberitaan Penelitian Tanah dan Pupuk (Indonesia) ISSN 0216-6917 1992 (no.
10) p. 61-65 1 ill.; 5 tables; 7 ref.
LEGUMINOSAE; GREEN MANURES; SOIL DETERIORATION; PRODUCTIVITY;
ACID SOILS; SOIL CHEMICOPHYSICAL PROPERTIES; GLYCINE MAX; ZEA MAYS;
VIGNA RADIATA RADIATA; VIGNA UNGUICULATA; MUCUNA; SOIL
MANAGEMENT; MINIMUM TILLAGE; UPLAND RICE; CROPPING PATTERNS.
Salah satu untuk mempertahankan produktivitas tanah masam adalah dengan mempertahankan kadar bahan organik dalam tanah. Penelitian pengaruh pertanaman kacang- kacangan untuk memperbaiki sifat fisika dan kimia tanah serta hasil kedelai dan jagung telah dilaksanakan pada tanah terdegradasi di Kuamang Kuning, Jambi. Penelitian dilakukan dua tahap. Pada tahap pertama sebanyak 4 macam pertanaman kacang-kacangan (kacang hijau, kacang tunggak, benguk dan komak) ditanam pada petak perlakuan kapur dan tanpa kapur dan disusun berdasarkan rancangan petak terpisah. Jagung dan kedelai ditanam setelah panen kacang-kacangan dengan menambahkan perlakuan pengolahan tanah biasa dan pengolahan tanah minimum. Hasil penelitian menunjukkan bahwa hasil bahan hijau benguk dan kacang tunggak lebih tinggi dibandingkan dengan komak dan kacang hijau. Benguk dan kacang tunggak dapat menghasilkan bahan hijau yang banyak dalam waktu yang relatif pendek, tumbuh baik pada lahan kering masam dan tahan kekeringan. Benguk dapat memperbaiki sifat fisik tanah dengan menurunkan ketahanan tanah kurang dari 15 kg F/cm2 pada kedalaman 9-10 cm. Hasil kedelai dan jagung tertinggi dicapai pada petak yang ditanami benguk. Benguk dan kacang tunggak dapat merupakan alternatif yang baik sebagai sumber bahan organik merehabilitasi lahan kering masam. Kacang-kacangan ini dapat ditanam setelah padi atau palawija dan dipanen sebelum mengulangi lagi pergiliran tanaman yang sama.
RAHAYU, M.
The response of soybean genotypes to bacterial pustule. Tanggapan genotipe kedelai terhadap penyakit pustul/Rahayu, M; Iriani, E (Balai Penelitian Tanaman Pangan, Malang (Indonesia)) [Report of research results of Malang Research Institute for Food Crops, during 1991]. Risalah hasil penelitian tanaman pangan tahun 1991/Kasno, A; Hendroatmodjo, K.H;
Dahlan, M; Sunardi; Winarto, A Balai Penelitian Tanaman Pangan, Malang (Indonesia) Malang (Indonesia): 1992 2/2 p.159-164 1 table; 6 ref.