Direct seeded rice (DSR) cultivation has received considerable attention due to its economic and labor-saving benefits. However, inadequate nutrient availability, particularly micronutrients, remains a significant constraint in achieving optimal crop growth and yield in direct seeded rice system. This research paper presents a comprehensive analysis of the impact of iron and zinc fertilization on yield, productivity and nutritional quality of direct seeded rice. This experiment was conducted at Experimental Farm, Regional Research Station, Anand Agricultural University, Anand, Gujarat, during kharif season of the year 2022 with twelve treatments of iron and zinc fertilization strategies viz. nutripriming, foliar application and soil drenching which were replicated thrice in randomized block design (RBD). In the treatments of nutripriming, seed were soaked in 0.5% solutions of iron sulphate and zinc sulphate individually and also in combination for 12 hrs. In other treatments, solutions of 0.5% concentration of iron sulphate and zinc sulphate were applied through foliar application at 30 and 50 DAS and soil drenching. Soil drenching was done by adding nutrient solutions (0.5% of iron sulphate and zinc sulphate each) directly on the rice sown lines of the plots. Findings demonstrate that targeted application of micronutrients (Fe and Zn) significantly enhanced the DSR performance in form of growth parameters, yield attributes, yield and nutrient content of grain and straw. Among all the treatments, (T5) nutripriming of direct seeded rice with 0.5% iron sulphate plus 0.5% zinc sulphate for 12 hours before sowing along with recommended dose of fertilizers has been found best in terms of plant height, panicles per m2, yield and Fe and Zn content in seed and straw of rice.

No abstract

Fertilization of soybean with zinc (Zn) had received considerable attention in recent years due to world-wide spread of its deficiency in soils and also due to malnutrition in infants and children’s. Soybean is high nutrient exhausting crop but sensitive to zinc (Zn) deficiency in soil. Application of Zn fertilizers could be a viable option to fulfil this deficiency and also to promote yield and growth parameters. This experiment was conducted at Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur during kharif season of 2019 with fourteen treatments of zinc application strategies [(T1) Absolute control, (T2) recommended dose of fertilizer+ No Zn, (T3) RDF + 5.0 kg Zn ha-1, (T4) RDF + spray of 0.5% ZnSO4 at 35 DAS, (T5) RDF + spray of 0.5% ZnSO4 at 35 and 55 DAS, (T6) RDF + 5.0 kg Zn ha-1 + spray of 0.5% ZnSO4 at 35 DAS, (T7)  RDF + 5.0 kg Zn ha-1 + spray of 0.5% ZnSO4 at 35 and 55 DAS, (T8) RDF + Zn solubilizer as soil application, (T9) RDF + 5.0 kg Zn ha-1 + Zn solubilizer as soil application, (T10) RDF + Spray of 0.5% ZnSO4 and 150 ppm salicylic acid at 35 DAS, (T11) RDF + spray of 0.5% ZnSO4 and 150 ppm salicylic acid at 35 and 55 DAS, (T12) RDF + 5.0 kg Zn ha-1 + spray of 0.5% ZnSO4 and 150 PPM salicylic acid at 35 DAS, (T13) RDF + 5.0 kg Zn ha-1 + spray of 0.5% ZnSO4 and 150 ppm salicylic acid at 35 and 55 DAS and (T14) No RDF + 5.0 kg Zn ha-1] which were replicated three times in randomized block design(RBD). Results showed that growth parameters, yield attributes and yield of soybean were significantly affected by zinc application strategies. It was found that treatment of RDF + 5.0 kg Zn ha-1 + spray of 0.5% ZnSO4 + 150 ppm salicylic acid at 35 and 55 DAS (T13) had been found best in terms of growth, yield attributes and yield of soybean.

A field experiment was conducted during kharif, 2019 at Anand Agricultural University, Anand, Gujarat, India. The effect of nutrient management practices on soil pH, cation exchange capacity, DTPA micronutrient and their inter relationship were studied. The result of present study showed that relationship between available micronutrients and soil pH was significantly and negatively correlated for DPTA Fe, Mn and Zn. In case of DTPA Cu and soil pH relationship was positively correlated. The highest R2 value for the relationship between DTPA micronutrients and soil pH was for the available Fe (0 79). The relationship between available micronutrients and cation exchange capacity of soil was reverse of soil pH. Available Fe, Mn and Zn were positively correlated with cation exchange capacity and reverse for DTPA Cu. The lowest R2 value for relationship between DTPA micronutrients and soil cation exchange capacity was for DTPA Cu (0.008).

An experiment was conducted to study the response of organic sources on the growth, yield, and quality of semi-rabi green gram. The experiment was conducted during semi rabi season 2021, at Agronomy Farm, B.A. College of Agriculture, Anand Agricultural University, Anand, Gujarat, comprising one chemical treatment with nine integrated nutrient management and biofertilizer treatments i.e. total 10 integrated organic manures treatments impose in semi rabi green gram. The layout of experiment was done according to Randomized complete block design with three replications. Growth attributes like plant height, number of branches, dry matter accumulation  plant-1 and dry weight of nodules plant-1 of green gram as influenced by an application of 75% N through vermicompost + ST (5 ml kg seed-1) of Rhizobium + Bio NPK consortium 1 L ha-1. Significantly higher green gram yield attributing character and biological yield was observed significantly higher where application done by 75% N through vermicompost + ST (5 mL kg seed-1) of Rhizobium + Bio NPK consortium 1 L ha-1. Quality parameter and content is most important factors for green gram, an application of 75% N through vermicompost + ST (5 ml kg seed-1) of Rhizobium + Bio NPK consortium 1 L ha-1 treatment reported significantly higher seed and straw NPK content and uptake.