Maize is the second important commodity after rice in Indonesia. The application of high yielding varieties is one of the best strategies to increase productivity in maize development areas. The aim of the study was to obtain superior varieties with the highest yield potential and biomass to increase productivity and its availability as animal feed. The research was conducted in Pringgabaya district, East Lombok Regency, West Nusa Tenggara from April to June 2020. The field experiment used a randomized block design with treatment of 8 hybrid varieties, where six new superior varieties (Bima-14, Bima 20, HJ-21, JH-27, JH-37, Nasa-29) and two comparison varieties (Bisi-2 and Pioner 21), each treatment was repeated four times. The results showed that there were 3 high yielding hybrid maize varieties, namely JH-37 (8.43 t/ha), Nasa-29 (8.35 t/ha) and HJ-21 (8.15 t/ha) significantly differ from other varieties. For the highest biomass potential, there are 3 superior varieties of hybrid maize, namely HJ-21 (4.82 t/ha), Bima-20 (4.69 t/ha) and JH-27 (4.56 t/ha). High yielding hybrid maize varieties that available as animal feed were JH 37, Nasa-29 and HJ-21.

Plant growth is influenced by seed quality. Seeds need to be treated to prevent pest and disease disorders or to increase seed germination. Soybean planting was carried out in this study by the treatment of varieties and seed pre-treatment application before planting. The study aimed to measure the growth and yield of soybeans by varieties and seed treatment before planting, carried out in the Village of Nggembe, District of Bolo, Bima Regency. The study used factorial randomized block design with two factors. The first factor was soybean varieties consisting of two levels, namely Devon and Dena varieties, and the second factor was the application of pre-planting seed treatments consisting of four levels namely Cruiser, Marshall, Agrisoy, and without seed treatment, each treatment was repeated three times. Observations were made on the performance of agronomic crops and soybean yields. The results showed that the treatment of soybean varieties and the application of seed treatment had a significant influence on plant height and soybean productivity, and both treatments had interactions on parameters of plant height, number of filled pods, weight of 100 seeds, and soybean productivity with the best results successively produced by a combination of Devon-Control, Devon-Marshall, Devon-Agrisoy, and Dena-Cruiser.

The spread of the Corona virus (Covid 19) is still developing with new variants, Indonesia is one of the countries that currently has not been able to overcome the pandemic. One of the ways to maintain the immune system is by maintaining nutritious food intake and consuming healthy foods. Deficiency of Zn in the body results in decreased endurance, productivity, and human quality of life. Zn deficiency is one of the causes of stunting. Inpari IR Nutri Zinc is biofortified rice with a zinc content of 34.51 ppm which plays a role in preventing stunting, helping to increase nutritional value while overcoming iron deficiency in the community. Based on the superiority of Inpari IR Nutri Zinc rice, it is necessary to study the productivity and suitability of agro-ecosystems on Lombok Island. The study was carried out in three locations, three growing seasons using Standard Operating Procedures (SOP) for IR Nutri Zinc Inpari Rice Cultivation. The three locations are Mataram District at MT I/2020, Gerung District MT II/2020 and Narmada District MT III/2020. The study was carried out using a Randomized Block Design (RBD) design in 3 locations, 3 growing seasons using the Standard Operating Procedure (SOP) for IR Nutri Zinc Inpari Rice Cultivation. The aim of the study was to determine the level of productivity consistency of the Inpari IR Nutri Zinc variety using the Standard Operating Procedure (SOP) for rice cultivation at the 3 locations. The planting of Inpari IR Nutri Zinc rice at each location and growing season was repeated 5 times. Parameters observed included agronomic growth and productivity. Data collection consists of secondary data (rainfall data) and primary data. For primary data carried out by direct observation in the field and interviews with implementing farmers and business actors. Inpari IR Nutri Zinc planted in 3 locations using standard operating procedures (SOP) for rice cultivation, showed higher productivity than the average yield of Inpari IR Nutri Zinc at the national level. The productivity of rice planted in the Mataram sub-district in MH 2020 was 7.63 t/ha. The planting of Inpari IR Nutri Zinc rice is suitable for planting in the rainy season, but can produce well in the dry season with water conditions or an average rainfall of at least 100 mm / growing season. Rice Inpari Nutri Zinc can and should be developed in West Nusa Tenggara Province, especially in paddy fields and districts where the stunting rate is still quite high in an effort to reduce and prevent stunting in West Nusa Tenggara.

Potential lines need to be tested to produce new superior varieties of hybrids with high yield potential to increase corn productivity. The purpose of the research is to produce a single cross-strain has the appearance of a good agronomist, double cob and high yield potential, as a candidate release of varieties. The study began in April to July 2018. Experimental site in the Lembar village, West Lombok Regency, West Nusa Tenggara Province. Eight crosses of a single cross-tested all showed the appearance of a good agronomist, in accordance with the criteria of belonging to four varieties comparison (Bisi-2, Nasa-29, HJ-21 and Bima-3). There is one the crosses cross-E2 x Mr14 was good combiner for double ear with the percentage exceeded 28% per ha. There are four single cross-E 2 X Mr 14, E 1 X Mr 14, E 65 X Mr 14, MS 3 X Mr 14, which has a high yield potential with the weight of the dried seeds > 13 ton/ha. There are four potential lines that can be released as a new high yielding varieties.

Organic matter content in the dryland farming system tends to decrease rapidlyin most of arid region of Eastern Indonesia. This experiment aimed to test that hypothesis by growing casava and mungbean with and without organic fertilizer (cattle manure) under monoculture and intercropping. The study used a factorial completely randomized block design. The first factor is two cropping systems, namely monoculture and intercropping, the second factor is 2 applications of organic fertilizer (compost), namely 1) No compost and 2) Compost. Each treatment uses 6 replications. The results showed a significant effect of treatment on cassava yield component and productivity, while mungbean growth and yield was similar between treatment. Cassava grown under intercropping system with additional cattle manure was significantly produced the longest tuber (71.40 cm) and the largest number of tubers (6.40 tubers.plant-1). It also contributed to the highest tuber productivity (28.40 t.h-1), followed by yield of casava under intercropping system without compost (26.00 t.h-1), then the casava monoculture system with compost (21.80 t.h-1). The least was the monoculture system without compost (21.70 t.h-1). This experiment proved that additional organic fertilizer under intercropping system could increase the productivity of dryland (LER = 2.13).