ناصر جبير راضي الحسناوي

A field experiment was carried out at the Rice Research Station in the Mashkhab Sub-District, Department of the General Committee for Agricultural Research during the 2014 growing season to study the effect of different types of transplant spacing and soil amendment in growth and yield of rice cultivar Yasmin. The experiment was RCBD factorial with three replicates. First factor was three plant spacing (10x20, 15x25 and 20x30 cm) while the second factor was using three types of plant residues (organic matter) including corncobs, river algae powder and hornwort Ceratophyllum residues. The results showed a decrease in the number of days from planting until the physiological maturity in the 20x30 spacing. The 10×20 spacing resulted in the highest numbers of filled grains/panicle, panicles/unit area, yield and biological yield. Whereas, the treatment of the 20 × 30 spacing had the highest plant height, weight of 1000 grains and harvest index. The control treatment (no soil amendment) resulted in least number of days from transplanting to maturity and number of panicles/unit area, while corncobs amendment had the length of the dahlia, the number of grains filled, the weight of 1000 grains, the grain yield and the biological yield was greater. The addition of algae powder was higher in plant height and harvest index. The maximum yield of 10 × 20 and the addition of corn calves were given. The highest yield was 6.9 tons. Therefore, we recommend cultivating the Jasmine category with a distance of 10 × 20 with the addition of the corn shell.

Abstract: An experiment was conducted at the organic fertilizers producing section, to study the effects of different treatments of organic and chemical fertilizers and spraying with microelements liquor on growth and yield of cucumber plants. The experiment included four organic fertilizer treatments (palm fronds compost, corncobs compost, faba bean remain compost, sheep manure and a chemical fertilizer treatment), -1 -1 -1 while the microelements were sprayed at three concentration levels,0.0 ml l (distilled water only), 0.6 ml l and 1.2 ml l . Results showed that the faba bean remain compost treatment had the highest rate of leaf chlorophyll content (100.26 spad) with significant difference only from palm fronds compost (76.79 spad). Fertilizer treatments did not differ in fruit length and diameter except the sheep manure, which recorded the highest fruit diameter with significant difference only from palm fronds compost. Faba bean remain compost on the other hand had the highest values of -1 -1 number of fruits plant (56.11) with significant difference only from chemical fertilizer (49.91 fruits plant ). Generally, fertilizers treatments did not -1 -1 differ among each other in case of the yieldplant . Relative to spraying concentrations, treatments of 1.2 ml l resulted in significantly highest -1 values of leaf content of total chlorophyll (93.16 spad), fruit length (14.9 cm) and diameter (2.87 cm), number of fruits plant (57.47) and total yield -1 plant (5.52 kg).

The study was conducted during two growing seasons (2015 and 2016) inaprivate farm in Kufa-Najaf, with the objective of improving salinity tolerance of tomato (Lycopersicon esculentum Mill.) with exogenous application of silicon. The study included 40 treatments, which were four levels of irrigation water salinity (2.5, 5.0, 7.5 and 10 ds.m-1) , two tomato cultivars (Aulla and Majid) and five concentration of silicon (0 , 50 , 100 , 150 and 200 mg l-1). Asplit-split plot design was used in afactorial experiment with three factors and three replicates. The results were analyzed using analysis of variance and treatment means were compared using the least significant differences (LSD) at 0.05. The effect of the above treatment were studied on yield components, represented by number of fruit, mean fruit weight, yield per plant, early yield and total yield for both growing seasons., Irrigation water salinity at 7.5 and 10.0 ds m-1 caused a significant decrease in yield parameters for both growing seasons. Exogenous treatment with silicon caused a significant increase in all yield parameters, for both growing seasons. As for the effect of cultivars, the cultivar Majid was significantly superior in total marketable yield as much as (19.65, 20.66 and %), as compared with cv. Aulla for both growing seasons respectively.. The interactions among treatments, were significant in increasing flowering growth parameters, as well as yield and its components. Cultivar Majid irrigated with water salinity at 2.5 ds.m-1 and treatment with silcon at 150 mg.l-1 gave the highest total marketable yield (13.90, 11.40) ton. donum-1, while cultivar Aulla irrigated with water salinity at 10 ds.m-1 and non treatment gave the lowest total marketable yield (3.15, 3.11) ton. donum-1for both growing seasons respectively.