scholarly journals Ecological Studies on Weed Damage of Rice Plants in Rice Cultivation. : I, II : On the mechanism of competition between rice plants and weeds.

1956 ◽  
Vol 25 (2) ◽  
pp. 115-119 ◽  
Author(s):  
Masao ARAI ◽  
Ryoichi KAWASHIMA
Keyword(s):  
Rice Cultivation ◽  
Ecological Studies ◽  
Rice Plants

scholarly journals Ecological studies of diploid and autotetraploid rice plants.

1952 ◽  
Vol 1 (3) ◽  
pp. 156-160 ◽  
Author(s):  
Hideo KURIYAMA ◽  
Yoshio WATANABE
Keyword(s):  
Ecological Studies ◽  
Rice Plants ◽  
Autotetraploid Rice

SERANGAN DAN POPULASI Scotinophara sp. PADA TANAMAN PADI SAWAH DI KABUPATEN BOLAANG MONGONDOW TIMUR

EUGENIA ◽  
2019 ◽  
Vol 22 (3) ◽  
Author(s):  
Alex Hendra Kila ◽  
Ch. L. Salaki ◽  
Elisabeth R.M. Meray
Keyword(s):  
Population Density ◽  
Rice Plant ◽  
Survey Methods ◽  
Test Site ◽  
Rice Cultivation ◽  
Plant Age ◽  
Vegetative Stage ◽  
Rice Plants ◽  
Generative Phase

ABSTRACT   The research aimed to find out the attacks and pest populations Scotinophara sp. in rice crops have been carried out in EastBolaang Mongondow from July to October 2014. The study used survey methods at several centers of rice cultivation in East Bolaang Mongondow, then set three districts as a test site where sampling. Sampling using Method Diagonal slices then select ten clump of rice plants in each sub-sample plots. Samples were taken at vegetative stage and generative phase. Things were observed in this study is the percentage of infected plants and pest populations. The results showed that the highest percentage of infected rice plants in the age of the plants 8 weeks after plants are found in Sub Tutuyan amounted to 66.66 percent and the lowest sequentially the District Nuangan and the District Kotabunan namely 39.33 percent and 11.13 percent.The highest Scotinophara sp. population density was found based on the location is district Tutuyan 10,11 tail and the lowest sequentially District Nuangan and the District Kotabunan is 1.82 and 0.96 tail. The density of the population by age of the plant, the highest in the plant age 8 mst 12.75 and the lowest sequentially 6, 4 and 2 mst is4.38, 0.06 and 0 tail. Keywords : attack, population, Scotinophara sp., rice plant

scholarly journals Fate of nitrogen (15N) from velvet bean in the soil-plant system

2004 ◽  
Vol 61 (2) ◽  
pp. 210-215 ◽  
Author(s):  
Walkyria Bueno Scivittaro ◽  
Takashi Muraoka ◽  
Antonio Enedi Boaretto ◽  
Paulo César Ocheuze Trivelin
Keyword(s):  
Incubation Period ◽  
Green Manure ◽  
Plant Material ◽  
Rice Cultivation ◽  
Isotopic Dilution ◽  
Velvet Bean ◽  
Plant System ◽  
Rice Plants ◽  
Incubation Periods ◽  
Fate Of Nitrogen

Because of their potential for N2 biological fixation, legumes are an alternative source of nitrogen to crops, and can even replace or supplement mineral fertilization. A greenhouse experiment was carried out to evaluate temporal patterns of velvet bean (Mucuna aterrima) green manure release of nitrogen to rice plants, and to study the fate of nitrogen from velvet bean in rice cultivation. The isotopic dilution methodology was used. Treatments consisted of a control and 10 incubation periods of soil fertilized with 15N-labeled velvet bean (0, 20, 40, 60, 90, 120, 150, 180, 210, and 240 days). The plant material was previously chopped, sifted (10 mm mesh sieve) and oven-dried (65ºC). Incubation of the plant material (2.2 g kg-1 soil) was initiated by the longest period, in order to synchronize the planting of the test crop, rice (Oryza sativa), at time zero for all treatments. Green manure incorporation promoted increases in rice dry matter yield and nitrogen uptake. These variables showed maximum values at incubation periods of 38 and 169 days, respectively. Green manure nitrogen utilization by rice plants was highest at an incubation period corresponding to 151 days. More than 60% of the green manure nitrogen remained in the soil after rice cultivation. The highest green manure nitrogen recovery from the soil-plant system occurred at an incubation period equivalent to 77 days.

scholarly journals ANALYSIS OF LEGOWO ROW PLANTING SYSTEM AND SYSTEM OF RICE INTENSIFICATION (SRI) OF PADDY FIELD (ORYZA SATIVA L.) TOWARD GROWTH AND PRODUCTION

2016 ◽  
Vol 1 (1) ◽  
pp. 14-18 ◽  
Author(s):  
M. Darmawan
Keyword(s):  
Oryza Sativa L ◽  
Block Design ◽  
Treatment Plant ◽  
Cropping System ◽  
Rice Cultivation ◽  
System Of Rice Intensification ◽  
Plant System ◽  
Rice Plants ◽  
Planting Distance ◽  
Planting System

Rice is the main commodity crops in the province of Gorontalo, in addition to maize and pulses. One alternative technology to increase productivity is through application of Legowo cropping system that is engineered way of planting the tiles so that there is a spacious room extends to one direction between two rows of rice plants, while the other way seemed more tightly. In rice cultivation with system of transplanting, planting distance is one factor of production that is very important because it determines the productivity achieved. This research is expected to be a reference for farmers, especially in the province of Gorontalo to carry rice cultivation so as to increase the production of rice plants. The design of the study is a Randomized Complete Block Design by comparing between systems that are often used by farmers, namely row planting system tiles (S0), the system of row planting Legowo (2: 1) (S1), system of row planting Legowo (4: 1 ) (S2), planting system SRI (S3). The parameters of observations made were plant height, number of tillers, production (kg/plot), and observations of soil samplesman. The results showed treatment plant system of tiles provide number of tiller and height of plants that are best compared with other treatments. The best results for a number of productive tillers, the average production of grain/plot, grain weight of 1000 grain was in the treatment plant system Legowo row 2: 1.

scholarly journals Smart Farmer Application in Monitoring and Learning of Android-based Rice Cultivation

2018 ◽  
pp. 16-20
Author(s):  
Rian Farta Wijaya ◽  
Andysah Putera Utama Siahaan ◽  
Rahmad Budi Utomo ◽  
Debi Yandra Niska
Keyword(s):  
Subject Matter ◽  
Food Choice ◽  
Relevant Information ◽  
Rice Cultivation ◽  
Rice Plants ◽  
Sufficient Knowledge ◽  
The Subject ◽  
Cultivation Techniques

Farmers are jobs that are done by planting crops and then harvesting crops for sale or consumption. Farmers must know the plants to be planted to get good harvests. Smart Farmer application is made to be a medium of help for young Farmers who do not have sufficient knowledge in conducting farming activities. The Smart Farmer application is created by presenting relevant information such as cultivation techniques, diseases, pests, and benefits related to rice plants. Rice plants were chosen as the subject matter because rice is the primary food choice needed by humans in Indonesia, and at this time farmers have also decreased in number.

scholarly journals SERANGAN DAN POPULASI Scotinophara sp. PADA TANAMAN PADI SAWAH DI KABUPATEN BOLAANG MONGONDOW TIMUR

EUGENIA ◽  
2019 ◽  
Vol 22 (3) ◽  
Author(s):  
Alex Hendra Kila ◽  
Ch. L. Salaki ◽  
E. R.M. Meray
Keyword(s):  
Population Density ◽  
Rice Plant ◽  
Survey Methods ◽  
Test Site ◽  
Rice Cultivation ◽  
Plant Age ◽  
Vegetative Stage ◽  
Rice Plants ◽  
Generative Phase

ABSTRACT The research aimed to find out the attacks and pest populations Scotinophara sp. in rice crops have been carried out in EastBolaang Mongondow from July to October 2014. The study used survey methods at several centers of rice cultivation in East Bolaang Mongondow, then set three districts as a test site where sampling. Sampling using Method Diagonal slices then select ten clump of rice plants in each sub-sample plots. Samples were taken at vegetative stage and generative phase. Things were observed in this study is the percentage of infected plants and pest populations. The results showed that the highest percentage of infected rice plants in the age of the plants 8 weeks after plants are found in Sub Tutuyan amounted to 66.66 percent and the lowest sequentially the District Nuangan and the District Kotabunan namely 39.33 percent and 11.13 percent.The highest Scotinophara sp. population density was found based on the location is district Tutuyan 10,11 tail and the lowest sequentially District Nuangan and the District Kotabunan is 1.82 and 0.96 tail. The density of the population by age of the plant, the highest in the plant age 8 mst 12.75 and the lowest sequentially 6, 4 and 2 mst is4.38, 0.06 and 0 tail.Keywords : attack, population, Scotinophara sp., rice plant

scholarly journals ANALISIS DIAGNOSA PENYAKIT TANAMAN PADI DENGAN METODE FUZZY INFERENCE SYSTEM DAN CERTAINTY FACTOR

2018 ◽  
Vol 5 (1) ◽  
pp. 110
Author(s):  
Muliadi Muliadi
Keyword(s):  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
Disease Diagnosis ◽  
Rice Cultivation ◽  
Certainty Factor ◽  
Inference System ◽  
Rice Plants ◽  
Rice Disease ◽  
Value Measure

<p><em>Rice plants are now many been developed in the swamp land. One of the problems is disease of rice is a risk that must be faced and counted in rice cultivation to increase production as expected. The purpose of this research is an analysis of rice disease diagnosis that grows in wetlands by applying the method of Fuzzy Inference System and Certainty Factor. Fuzzy Inference System used in this system is fuzzy Tsukamoto used to obtain the value measure of belief (MB) and a measure of disbelief (MD) symptoms of the disease. And the certainty factor (CF) for the assessment of each disease. The result that obtained is the analysis succeeded in giving a diagnosis of disease in rice of symptoms that attack the rice.</em></p><p><em><strong>Keywords</strong>:<strong> </strong>Rice Plants, Diagnosis, Fuzzy Inference System Tsukamoto, Certainty Factor.</em></p><p><em>Tanaman padi sekarang banyak dikembangkan di lahan rawa. Salah satu masalahnya adalah penyakit padi, yang merupakan resiko yang harus dihadapi dan diperhitungkan dalam budidaya padi untuk meningkatkan produksi yang sesuai dengan harapan. Tujuan penelitian ini adalah membuat analisis diagnosa penyakit padi yang tumbuh di lahan rawa dengan menerapkan metode Fuzzy Inference System dan Certainty Factor. Fuzzy Inference System yang digunakan dalam sistem ini adalah Fuzzy Tsukamoto yang digunakan untuk memperoleh nilai measure of belief  (MB) dan measure of disbelief (MD) gejala terhadap suatu penyakit. Sedangkan certainty factor (CF) untuk pemberian nilai masing-masing penyakit. Hasil yang didapatkan yaitu analisis ini berhasil memberikan diagnosa penyakit yang padi dari gejala-gejala yang menyerang padi tersebut.</em></p><em><strong>Kata kunci</strong>:<strong> </strong>Tanaman Padi, Diagnosa, Fuzzy Inference System Tsukamoto, Certainty Factor.</em>

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